The proceedings of the 18th Annual Conference of China Electrotechnical Society [[electronic resource] ] : Volume VII / / edited by Qingxin Yang, Zewen Li, An Luo |
Autore | Yang Qingxin |
Edizione | [1st ed. 2024.] |
Pubbl/distr/stampa | Singapore : , : Springer Nature Singapore : , : Imprint : Springer, , 2024 |
Descrizione fisica | 1 online resource (906 pages) |
Disciplina | 621.3 |
Altri autori (Persone) |
LiZewen
LuoAn |
Collana | Lecture Notes in Electrical Engineering |
Soggetto topico |
Electrical engineering
Electronics Electric power production Electronic circuits Electrical and Electronic Engineering Electronics and Microelectronics, Instrumentation Electrical Power Engineering Electronic Circuits and Systems |
ISBN | 981-9710-72-3 |
Formato | Materiale a stampa |
Livello bibliografico | Monografia |
Lingua di pubblicazione | eng |
Nota di contenuto |
Intro -- Contents -- RUL Prediction Method of Series Battery Based on Improved Limit Learning Machine -- 1 Introduction -- 2 Extraction of Characteristic Parameters of Series-Connected Battery Recession -- 2.1 Energy Signature -- 2.2 Time Interval for Charging Voltage Rise -- 2.3 Standard Deviation Signal (Electronics) -- 2.4 Charge Current Drop Interval -- 2.5 Skewness Signal -- 3 RUL Prediction Method for Series-Connected Batteries -- 3.1 Establishment of Battery RUL Prediction Model Based on Improved Limit Learning Machine -- 3.2 Quantification of Uncertainty in Forecast Results -- 4 Analysis of Experimental Arguments -- 4.1 Experimental Preparation -- 4.2 Description of the Experiment -- 4.3 Analysis of Projected Results -- 5 Summarize -- References -- Impulse Flashover Characteristics of High-Voltage Post Insulators in High Altitude Areas -- 1 Introduction -- 2 Methodology -- 2.1 Test Equipment -- 2.2 Test Setup -- 2.3 Test Sample -- 2.4 Test Procedure -- 3 Results -- 3.1 Lightning Impulse Flashover Testing Results -- 3.2 Operating Impulse Flashover Testing Results -- 4 Conclusion -- References -- Multi-agent Distributed Cooperative Control of Multi-energy Complementary Microgrid -- 1 Introduction -- 2 Multi-energy Complementary Microgrid and Microgrid Control Mode -- 2.1 Main Advantages of Microgrid Over Traditional Grid Power Supply -- 2.2 Microgrid Control Strategy -- 2.3 Microgrid Control Mode -- 2.4 Typical Microgrid Control Technology -- 3 Multi-agent System (MAS) -- 4 Distributed Generation and Distributed Management Control System -- 5 Design of Collaborative Control System -- 5.1 Microgrid Collaborative Control Technology -- 5.2 Microgrid Control Strategy Based on Multi-agent Distributed Algorithm -- 5.3 System Design Scheme -- 6 Simulation Experiment of Cooperative Control -- 6.1 Grid-Connected Operation Mode.
6.2 Island Operation Simulation -- 7 Conclusions -- References -- Effect of Low Temperature on Impulse Discharge Characteristics of Insulator String -- 1 Introduction -- 2 Test Arrangement and Method -- 2.1 Sample -- 2.2 Experimental Setup and Method -- 3 Test Results and Analysis -- 4 Conclusions -- References -- Research on Rapid Cooling Technology for High Temperature Copper Parts -- 1 Introduction -- 2 Heating Analysis of Copper Part -- 2.1 Heating of Copper Part -- 2.2 Phase Change Cooling Scheme -- 3 Cooling Device and Test -- 3.1 Principle of Active Phase Change Cooling -- 3.2 Test Platform Construction and Test -- 4 Analysis of Test Results -- 5 Conclusion -- References -- Optimal Dispatching of Distribution Network Considering Inverter Air Conditioner Aggregation -- 1 Introduction -- 2 Mathematical Model of Inverter Air Conditioner Aggregation and Optimization -- 2.1 Room Thermal Modeling -- 2.2 Electrical Parameter Relationships -- 2.3 Demand Response Control Strategy -- 2.4 Objective Function -- 2.5 Constraints -- 3 Regulatory Potential Assessment and External Characterization -- 3.1 Parameter Initialization -- 3.2 Load Reduction with Different Number of Air Conditioners -- 3.3 Load Reduction with Different Outdoor Temperature -- 3.4 Load Reduction with Different Temperature Regulation -- 4 Numerical Results -- 4.1 Example Settings -- 4.2 Optimized Scheduling Results -- 5 Conclusion -- References -- Research on Coding Method of Polarization PLC System Based on Upper Bound of Bhattacharyya Parameter -- 1 Introduction -- 2 Basic Principle of Polar Code -- 2.1 Code Word Construction -- 2.2 Encoding -- 2.3 Decoding -- 3 Polarization PLC Channel Coding System -- 3.1 Transfer Probability of the PLC Channel -- 3.2 Reliability Estimation of Polarization PLC Channels -- 4 Simulation Experiment and Result Analysis -- 4.1 PLC Channel Simulation Model. 4.2 Result Analysis -- 5 Conclusion -- References -- A Preventive Maintenance Strategy of Wind Turbine Gearbox Based on Stochastic Differential Equation -- 1 Introduction -- 2 Gearbox State Degradation Model -- 2.1 Model of SDE -- 2.2 Failure Rate Model -- 2.3 Stochastic Perturbation Model -- 2.4 Parameter Solution -- 3 Analysis of Preventive Maintenance Strategies Based on Condition Modelling -- 3.1 Theoretical Analysis of CBM Strategies -- 3.2 Theoretical Analysis of TBM Strategies -- 4 Example Analyses -- 5 Conclusion -- References -- Research Status of Contact on Breaking Performance of High Voltage Circuit Breaker -- 1 Introduction -- 1.1 High Voltage Circuit Breaker Development History -- 1.2 Life Evaluation Status of High Voltage Circuit Breakers -- 1.3 Reliability Evaluation Status of High Voltage Circuit Breakers -- 2 Influence of Contact Characteristics on Breaking Performance -- 2.1 Contact Resistance -- 2.2 Resistance to Arc Welding and Low Ablation Rate -- 2.3 Arc Root Migration -- 2.4 Dam a River -- 3 Research Status of Electric Contacts -- 3.1 Nano-Contact Materials -- 3.2 Doped Modified Contact Material -- 4 Conclusion -- References -- Simulation of Flow Characteristics in High-Voltage Circuit Breakers -- 1 Introduction -- 2 Methodology -- 2.1 Governing Equations -- 2.2 Supersonic Flow -- 2.3 Nozzle Geometry and Boundary Conditions -- 2.4 Simulation Conditions -- 3 Results and Discussion -- 3.1 Features of the Cold Flow in the Nozzle Area -- 3.2 The Influence of Outlet Condition -- 3.3 The Influence of the Smoothness Geometry of Nozzle Throat -- 3.4 The Influence of Position of Downstream Electrodes -- 4 Conclusion -- References -- Optimal Configuration of Hybrid Energy Storage Capacity Based on Improved Compression Factor Particle Swarm Optimization Algorithm -- 1 Introduction -- 2 The Constitution of Energy Storage Model. 2.1 Hybrid Energy Storage System Topology -- 3 Optimization Objectives and Constraints -- 3.1 Full Life Cycle Costs -- 3.2 Objective Function -- 3.3 Electricity Supply Reliability Indicators -- 3.4 Restrictive Condition -- 4 Solution Method -- 4.1 Particle Swarm Algorithm -- 4.2 Improved Compression Factor Particle Swarm Algorithm -- 5 Example Simulation and Discussion -- 5.1 Parameter Setting of Example -- 5.2 Simulation Results and Analysis of Examples -- 6 Conclusion -- References -- A Novel SVM-Based Transient Protection Algorithm for Transmission Lines -- 1 Introduction -- 2 Constructing the Presented Algorithm -- 2.1 High Frequency Signal Propagation Characteristics of Busbars -- 2.2 Algorithm of the Presented Protection -- 3 Algorithm Application Verification -- 3.1 Simulation Cases -- 3.2 Fault Diagnosis Using SVM -- 4 Conclusions -- References -- Effect of Ion Types on Arc Erosion of Circuit Breaker Contact: Molecular Dynamics Simulation Study -- 1 Introduction -- 2 Positive Ions in SF6 arc Plasma -- 3 Simulation Methodology -- 4 Results and Discussion -- 5 Conclusion -- References -- Research on the Delay Characteristics of 5G Communication Networks for Regional Protection in Power Distribution Grids -- 1 Introduction -- 2 Distribution Network Area Protection Architecture -- 2.1 Centralized Architecture -- 2.2 Intelligent Distributed Architecture -- 2.3 Regional Centralized Architecture -- 3 5G Bearing Area Protection -- 4 Regional Protection Delay Analysis -- 4.1 Centralized Protection Delay -- 4.2 Intelligent Distributed Protection Delay -- 4.3 Regional Centralized Protection Delay -- 5 Simulation and Analysis -- 5.1 Different End-to-End Delays of Three Architectures -- 5.2 Different End-to-End Delay with Varying Routing Parameters in Regional Centralized Architecture -- 6 Conclusion -- References. Distributed Reactive Power Control Scheme for Parallel Inverters Based on Virtual Impedance -- 1 Introduction -- 2 Microgrid Parallel Inverter Model Considering Circulating Current -- 3 Analysis of Reactive Power Distribution Problems -- 3.1 Analysis of Reactive Power Distribution Problem Based on Virtual Impedance -- 3.2 Analysis of Distributed Reactive Power Distribution with Virtual Impedance Without Communication -- 4 Distributed Optimization Control Scheme for Parallel Inverters -- 4.1 Distributed Optimization Virtual Impedance Control Theory -- 4.2 Distributed Optimization Process of Virtual Impedance -- 4.3 Secondary Regulation of Voltage and Frequency -- 5 Experiment and Simulation Analysis -- 6 Conclusion -- References -- On Line Estimation of Power Line Channel Impedance Based on Transfer Function -- 1 Introduction -- 2 Theoretical Basis -- 3 Impedance and Transfer Function Mapping Based on Neural Network Model -- 3.1 Parameters of PLC Network Model -- 3.2 BP Neural Network Parameters -- 3.3 Analysis of Training and Test Results -- 4 Hardware Test -- 4.1 Sample Collection -- 4.2 Sample Processing -- 4.3 Impedance Identification -- 5 Conclusion -- References -- Research on Insulator Defect Detection Based on Improved YOLOv7 -- 1 Introduction -- 2 Algorithm Improvement Based on YOLOv7 -- 2.1 Improvement of Attention Mechanism -- 2.2 Improvement of the Feature Pyramid -- 2.3 Adjustment of Loss Function -- 3 Experimental Result and Analysis -- 3.1 Production of Data Sets -- 3.2 Configuration of the Experimental Environment -- 3.3 Test Index -- 3.4 Analysis of Experimental Results -- 4 Conclusion -- References -- Field Application of Switchgear Abnormal Noise Detection Based on Acoustic Imaging Technology -- 1 Introduction -- 2 Detection Method -- 3 On-Site Case -- 3.1 Case 1-Abnormal Noise of Mechanical Looseness. 3.2 Case 2-Abnormal Noise of Mechanical Looseness. |
Record Nr. | UNINA-9910842491403321 |
Yang Qingxin | ||
Singapore : , : Springer Nature Singapore : , : Imprint : Springer, , 2024 | ||
Materiale a stampa | ||
Lo trovi qui: Univ. Federico II | ||
|
The Proceedings of the 18th Annual Conference of China Electrotechnical Society [[electronic resource] ] : Volume VI / / edited by Qingxin Yang, Zewen Li, An Luo |
Autore | Yang Qingxin |
Edizione | [1st ed. 2024.] |
Pubbl/distr/stampa | Singapore : , : Springer Nature Singapore : , : Imprint : Springer, , 2024 |
Descrizione fisica | 1 online resource (883 pages) |
Disciplina | 621.3 |
Altri autori (Persone) |
LiZewen
LuoAn |
Collana | Lecture Notes in Electrical Engineering |
Soggetto topico |
Electrical engineering
Electronics Electric power production Electronic circuits Electrical and Electronic Engineering Electronics and Microelectronics, Instrumentation Electrical Power Engineering Electronic Circuits and Systems |
ISBN | 981-9710-68-5 |
Formato | Materiale a stampa |
Livello bibliografico | Monografia |
Lingua di pubblicazione | eng |
Nota di contenuto |
Intro -- Contents -- An Infrared and Visible Image Fusion Method Based on Improved GAN with Dropout Layer -- 1 Introduction -- 2 Related Work -- 2.1 Generative Adversarial Network -- 2.2 Improvement of Discriminator Network Generalization by Dropout -- 3 Methods -- 4 Experiments -- 4.1 Dataset -- 4.2 Experimental Results -- 5 Conclusion -- References -- Thermal Resistance Network Modeling of Integrated Switched Reluctance Motor Drive System -- 1 Introduction -- 2 TRN Modeling of IMDS -- 2.1 TRN Model of SRM -- 2.2 TRN Modeling of the PCB -- 2.3 Thermal Coupling Between SRM and Drive -- 2.4 Finite Element Model Simulation and Validation -- 3 Conclusion -- References -- DC Flashover Characteristics of Fluorosilicone Rubber-PEEK Interface in Underwater Electrical Connector -- 1 Introduction -- 2 Experimental Platform and Experimental Method -- 2.1 Experimental Platform -- 2.2 Experimental Method -- 3 Flashover Characteristics of Solid-Solid Interface Under Different Normal Pressures -- 4 Analysis of Contact Characteristics and Flashover at Solid-Solid Interface -- 5 Conclusion -- References -- Multi-objective Optimization Control of Active Magnetic Bearing-Rotor System Based on Multi-Dimensional Visualization -- 1 Introduction -- 2 Mathematic Model of AMB Rotor System -- 3 Multi-objective Constraint Model -- 3.1 Equivalent Stiffness and Damping -- 3.2 Maximum Amplitude -- 3.3 Robustness -- 3.4 Optimization Model -- 4 Solving Multi-objective Constraint Model -- 5 Simulation Results and Analysis -- 5.1 Robustness Analysis -- 5.2 Analysis of Vibration Control Characteristics -- 6 Conclusion -- References -- Study on Influence of Contact Structure on Phase Shift Time of Magnetic Field in Vacuum Under Various Current Frequencies -- 1 Introduction -- 2 Simulation Model and Setup -- 3 Simulation Results -- 4 Conclusion -- References.
Analysis and Application of a 66 kV Self-extending Cable Joint -- 1 Introduction -- 1.1 Common Cable Connector Types -- 2 Methods -- 2.1 Design of the Structure -- 2.2 Key Points of Connector Production and Installation -- 3 Application Case -- 4 Conclusion -- References -- Analysis and Optimization of Adjust-Free Rate of Balanced Force Relay Contact System -- 1 Introduction -- 2 Analysis Method of Contact System Adjust-Free Rate of Relay -- 2.1 The Definition of the Contact System Adjust-Free Rate -- 2.2 Random Matching Process in Final Assembly -- 3 Contact Pressure Simulation Analysis of the Balance Force Relay -- 3.1 Establishment of Contact Pressure Simulation Model -- 3.2 Research on Key Influencing Factors of Contact System Adjust-Free Rate -- 4 Consistency Improvement of Key Parameters in Assembly -- 4.1 Optimization of Armature Stroke Consistency Based on Robust Design -- 4.2 Improvement of Contact Gap Consistency Based on Assignment Problem and Hungarian Algorithm -- 5 Optimization Scheme of Contact System Adjust-Free Rate -- 5.1 Adjust-Free Rate Optimization Scheme Based on Neural Network -- 5.2 Experimental Verification of Optimization Scheme -- 6 Conclusion -- References -- Research on the Intensive Construction Plan of Edge Cluster for Digital Converter Station -- 1 Introduction -- 2 Research on the Intensification of Edge Clusters -- 2.1 Requirements for Intensive Construction of Edge Cluster -- 2.2 Edge Cluster Intensive Architecture -- 3 Efficient Storage for Edge Cluster Storage Pool -- 3.1 Existing Storage Pool Storage Methods -- 3.2 Improvements in Storage Pool Storage Methods -- 4 Dynamic Scheduling of Edge Cluster Computing Resources -- 5 Conclusion -- References -- Optimal Design of Copper Foil Inductors with High Energy Storage Density Based on Genetic Algorithm -- 1 Introduction -- 2 Calculation. 2.1 Structure Analysis of Energy Storage Inductance -- 2.2 Inductance Calculation -- 3 Genetic Algorithm Optimization Design -- 3.1 Single Objective Optimization Problem -- 3.2 Optimization Results of Structural Parameters -- 4 Simulation Verification and Power Module Design -- 4.1 Electromagnetic Field -- 4.2 Temperature Field -- 5 Conclusion -- References -- A Feature Enhancement Method for Operating Sound Signal of High Voltage Circuit Breaker Based on VMD-Wavelet Threshold -- 1 Introduction -- 2 Principle of VMD and Wavelet Threshold Denoising -- 2.1 Principle of VMD -- 2.2 Principle of Wavelet Threshold Denoising -- 3 Analysis of the Measured Operating Sound Signal of HVCB -- 3.1 Experimental Platform -- 3.2 Noise Reduction Effect of Sound Signal Under Normal Condition -- 3.3 Feature Enhancement Effect of Sound Signal Under Fault Condition -- 4 Conclusion -- References -- Detection of Carbon Particle Pollutants in Transformer Oil Based on the Microfluidic Imager -- 1 Introduction -- 2 Experimental Setup and Methods -- 2.1 Sample Preparation -- 3 Experimental Platform and Method -- 4 Experimental Results and Discussion -- 5 Conclusions -- References -- Aging Degree Detection of Insulator Umbrella Skirt Based on Laser-Induced Breakdown Spectroscopy -- 1 Introduction -- 1.1 A Subsection Sample -- 2 Summary of Experiment -- 3 Test Results and Chemical Composition Prediction -- 3.1 A Subsection Sample -- 3.2 A Subsection Sample -- 4 Conclusion -- References -- Research on the Influence of Air Pressure and Mixture Concentration on the Discharge Characteristics of High-Frequency nSDBD -- 1 Introduction -- 2 Experimental Setup -- 3 Results and Discussion -- 3.1 The Influence of Gas Pressure on High-Frequency nSDBD Characteristics -- 3.2 The Influence of Mixture Concentration on High-Frequency nSDBD Characteristics. 3.3 The Influence of Dielectric Thickness on High-Frequency nSDBD Characteristics -- 4 Conclusions -- References -- Study on Amplitude Characteristics of Electromagnetic and Vibration Parameters for "Plug-in" Type High-Voltage Conductor Connection Structures in GIS -- 1 Introduction -- 2 Vibration Calculation Method with "Electromagnetic-Mechanical" Coupled -- 3 Finite Element Calculation Model of the "Plug-In" Type High-Voltage Conductor Connection Structures -- 4 Analysis of Electromagnetic and Vibration Parameter Distribution Characteristics of the "Plug in" Type Connection Structures -- 4.1 Distribution Characteristics of Electromagnetic Parameters -- 4.2 Distribution Characteristics of Vibration Parameters -- 5 Conclusion -- References -- A Solution for Maintaining Power Failure of High-Power Airborne Equipment -- 1 Introduction -- 2 Total Solution -- 2.1 Whole Architecture -- 2.2 Definition of Requirements for State Transition -- 2.3 State Machine Definition -- 3 Simulation Verification -- 4 Product Validation -- 5 Conclusions -- References -- Study of Direct Carbon Emissions During Operation of Oil-Immersed Equipment in Substations -- 1 Introduction -- 2 Direct Carbon Emission Behavior of Oil-Immersed Equipment -- 3 Level of Direct Carbon Emissions from Oil-Immersed Equipment -- 4 Comparative Analysis of Carbon Emissions from Oil-Immersed Equipment Under Different Conditions -- 4.1 Impact of years of Operation -- 4.2 Impact of Geographic Location -- 4.3 Effect of Voltage Level -- 5 Conclusions -- References -- Study on Different Calculation Methods of Direct Carbon Emissions from Oil-Immersed Equipment on Substations -- 1 Introduction -- 2 Study of Direct Carbon Emissions from Oil-Immersed Equipment Based on Oil Chromatography Analysis -- 3 Study of Direct Carbon Emissions from Oil-Immersed Equipment Based on Field Measurements. 3.1 Field Measurement Methods -- 3.2 Computational Models and Methods -- 3.3 Calculation Results and Analysis -- 4 Conclusions -- References -- A Data-Driven Algorithm for Short Circuit Fault Diagnosis of Power Batteries -- 1 Introduction -- 2 Fault Diagnosis Process for Electric Vehicles -- 2.1 Sparse Data Observer Algorithm -- 2.2 Threshold Setting -- 3 Results and Discussion -- 4 Compared with Other Fault Diagnosis Methods -- 5 Conclusion -- References -- Design and Optimization of PMSM for Compressed Air Energy Storage Based on Mop Model -- 1 Introduction -- 2 Electromagnetic Model of PMSM for Compressed Air Energy Storage -- 3 Optimization of PMSM for Compressed Air Energy Storage -- 3.1 Torque Ripple Analysis -- 3.2 Design Variables and Optimization Objectives -- 3.3 Design of Experiment Technology -- 3.4 Sensitivity Analysis and MOP Model Establishment -- 3.5 Particle Swarm Algorithm -- 4 Optimization and Simulation Results Analysis -- 5 Conclusion -- References -- Comprehensive Design of Electrical Machines for Integrated Pulsed Discharge Systems -- 1 Introduction -- 2 Specification Match Criteria -- 2.1 Pulsed Alternator Specification Parameters -- 2.2 Specification Match Design of Prime Motor and Pulsed Alternator -- 3 Electromagnetic Design of Pulsed Alternator and Prime Motor -- 3.1 Selection of Integrated Structure Topology -- 3.2 Main Dimension Design of Electrical Machines -- 4 Simulation Analysis of Integrated Pulsed Discharge System -- 4.1 Specification Parameters and Design Schemes -- 4.2 Steady-State Characteristics of Prime Motor -- 4.3 Discharge Characteristics of Pulsed Alternator -- 4.4 Driving Characteristics of Motor After Discharge -- 5 Conclusions -- References -- A Novel Accuracy Improvement Method for Cable Defect Location Based on Wave Velocity Correction Algorithm -- 1 Introduction -- 2 Theoretical Background. 2.1 The Method to Extract Wave Velocity Based on Impedance Spectroscopy. |
Record Nr. | UNINA-9910842496603321 |
Yang Qingxin | ||
Singapore : , : Springer Nature Singapore : , : Imprint : Springer, , 2024 | ||
Materiale a stampa | ||
Lo trovi qui: Univ. Federico II | ||
|
The Proceedings of the 18th Annual Conference of China Electrotechnical Society [[electronic resource] ] : Volume V / / edited by Qingxin Yang, Zewen Li, An Luo |
Autore | Yang Qingxin |
Edizione | [1st ed. 2024.] |
Pubbl/distr/stampa | Singapore : , : Springer Nature Singapore : , : Imprint : Springer, , 2024 |
Descrizione fisica | 1 online resource (871 pages) |
Disciplina | 621.3 |
Altri autori (Persone) |
LiZewen
LuoAn |
Collana | Lecture Notes in Electrical Engineering |
Soggetto topico |
Electrical engineering
Electronics Electric power production Electronic circuits Electrical and Electronic Engineering Electronics and Microelectronics, Instrumentation Electrical Power Engineering Electronic Circuits and Systems |
ISBN | 981-9710-64-2 |
Formato | Materiale a stampa |
Livello bibliografico | Monografia |
Lingua di pubblicazione | eng |
Nota di contenuto |
Intro -- Contents -- Transformer Temperature Prediction Method Based on Digital Twin Technology -- 1 Introduction -- 2 Prediction of Transformer Hot Spot Temperature -- 2.1 Establishment of Transformer Digital Twin -- 2.2 Simulation Analysis of 3D Model of Transformer -- 2.3 Prediction Model of Transformer Hot Spot Temperature -- 3 Results and Analysis -- 4 Conclusion -- References -- Study of Anomalous Breakage of Closing Resistors of Circuit Breakers for 750 kV AC Filter Fields -- 1 Introduction -- 1.1 A Subsection Sample -- 2 Modeling of Circuit Breaker for AC Filter Field -- 2.1 Physical Modeling -- 2.2 Electric Field Calculation Model -- 2.3 Modal Simulation Theory -- 3 Analysis of Electric Field Calculation Results -- 3.1 Resistance Stack Strength Under Normal Operating Conditions -- 3.2 Field Strength at Outer Breakage of Resistor Tabs -- 4 Modal Analysis of Closing Resistor Stack and Closing Resistor Chip -- 5 Conclusion -- References -- High-Frequency Signal Injection-Based Various Cable Connection Fault Diagnostics of PMSM -- 1 Introduction -- 2 Cable Fault Analysis Based on High-Frequency Injection -- 2.1 Mathematical Model of PMSM -- 2.2 Response Current Under Cable Connection Faults -- 3 Classification of Cable Fault Based on SVM -- 3.1 Fault Classification Based on High-Frequency Response Current -- 3.2 Introduction of SVM Fault Classification -- 4 Simulation Model Establishment and Analysis -- 4.1 Establishment of the Simulation Model -- 4.2 Data Processing and Result Analysis -- 5 Experimental Verification -- 5.1 Physical Model Establishment -- 5.2 Analysis of Experimental Results -- 6 Conclusion -- Appendix 1. Modification and Simplification of PMSM -- Appendix 2. Derivation of Inductance Matrix -- Appendix 3. Detailed Calculation of Response Current in All States -- References.
Transient Stability Analysis of Grid Following Converter Intergreted with Synchronous Generator -- 1 Introduction -- 2 Coupling System -- 3 Analytical Model of Coupling System -- 3.1 Equivalent Model -- 3.2 Active Power Calculation -- 4 Transient Stability Comparative Analysis Based on Equivalent Model -- 4.1 Determinant Factor of Instability Mode -- 4.2 Instability Mode of GFL -- 5 Simulation Results -- 5.1 Instability Mode 1 of GFL -- 5.2 Instability Mode 2 of GFL -- 6 Conclusion -- References -- Insulation Performance of Polyimide Materials Under Cable Arc -- 1 Introduction -- 2 Simulation of Fabric Under the Arc -- 2.1 Simulation Geometry -- 2.2 Analysis of Results -- 3 Material Heat Transfer Experiment -- 4 Conclusions -- References -- Research on Transverse Compression Electromechanical Characteristics of CORC Cable Under Curved Load Block -- 1 Introduction -- 2 Sample Preparation -- 3 Experiment -- 4 Analysis of Experimental Results -- 5 Conclusion -- References -- Oil Fire Detection Technology Based on Fractal Geometry -- 1 Development Status of Fire Detection Technology -- 2 Principles of Digital Image Processing Technology -- 3 Improved Box-Dimensional Algorithms -- 4 Experiments and Analysis -- 4.1 Fractal Brownian Motion Surface Test -- 4.2 Image Test with Drastic Changes in Brightness -- 4.3 Spike Image Test -- 4.4 Natural Texture Image Testing -- 4.5 Processing of Oil Flame Images -- 5 Conclusions -- References -- A IPMSM Current Control Method Based on Reinforcement Learning -- 1 Introduction -- 2 IPMSM Mathematical Model -- 3 H∞ Robust Control -- 4 Reinforcement Learning Algorithm -- 4.1 A Subsection Sample Define Reinforcement Learning Value Function -- 4.2 Reinforcement Learning Training Method -- 5 Test and Analysis -- 5.1 A Brief Introduction to the Test System -- 5.2 Test Results and Analysis -- 6 Conclusions -- References. Development and Performance Test of DC High-Voltage Generation System for Boron Neutron Source Device Based on Accelerator -- 1 Introduction -- 2 Overall Design of DC High-Voltage Generation System -- 3 Detailed Design of DC High-Voltage Generation System -- 3.1 SCR DC Stabilized Power Supply -- 3.2 High-Frequency and High-Voltage Oscillator -- 3.3 High-Frequency and High-Voltage Transformer -- 3.4 Voltage Doubling Rectifier Circuit -- 4 Principle Analysis and Simulation Calculation of Voltage Doubling Rectifier Circuit -- 5 Experimental Performance Testing -- 6 Conclusion -- References -- Research on the Control of Optical-Storage Grid-Connected Technology Based on Virtual Synchronous Generator -- 1 Introduction -- 2 Topology of Photovoltaic and Hybrid Energy Storage On-Grid Power Generation -- 3 Control Structure and Mathematical Model of VVSG -- 4 Control Strategy Analysis of Optical Storage Grid-Connected VSG -- 4.1 Photovoltaic Power Generation Part -- 4.2 Energy Storage Part -- 4.3 Reactive Power Voltage Control -- 4.4 Active Power Frequency Control -- 4.5 Reference Signal Synthesis and Current Closed-Loop Control -- 5 Experimental Verification and Analysis -- 6 Conclusions and Prospects -- References -- Influence of Rock Inclination on the Relaxation and Deformation of the Surrounding Rock in Underground Chambers -- 1 Introduction -- 2 Probabilistic Model and Calculation Parameters for Underground Chambers -- 2.1 Probabilistic Model of an Underground Chamber -- 2.2 Numerical Calculation Parameters -- 2.3 Initial Ground Stress and Boundary Conditions -- 3 Influence of Different Inclination Angles on the Relaxation and Deformation of the Surrounding Rock in Underground Chambers -- 3.1 Design of Rock Dip -- 3.2 Comparative Analysis of Deformation and Displacement of Surrounding Rocks -- 3.3 Comparative Analysis of Contact States at Rock Level. 3.4 Comparative Analysis of Relaxation and Deformation of Surrounding Rock -- 4 Conclusion -- References -- Impact Analysis of Multiple Electro-mechanical Actuators on More Electric Aircraft Power System -- 1 Introduction -- 2 MEA Power System and EMAs -- 3 Dynamics and Control of EMAs -- 4 Case Study -- 4.1 Simulation Environment and Timeline -- 4.2 Mechanical Dynamics of the EMAs -- 4.3 Electrical Responses of the EMAs -- 4.4 Discussion -- 5 Conclusion -- References -- Study on Modeling of Electromagnetic-Thermal Multi-field Coupling of Rail Electromagnetic Launcher and Its Electromagnetic Field and Temperature Field Distribution -- 1 Introduction -- 2 Establishment of Electromagnetic-Thermal Field Coupling Model of Rail Electromagnetic Launcher -- 2.1 Geometric Modeling -- 2.2 Electromagnetic Field Parameter Setting -- 2.3 Temperature Field Parameter Setting -- 3 Analysis of Electromagnetic Field Distribution -- 3.1 Distribution of Current Density -- 3.2 Distribution of Magnetic Induction Intensity -- 4 Analysis of Temperature Field Distribution Under Electromagnetic Coupling -- 5 Conclusion -- References -- Study on the Temporal and Spatial Characteristics of Transient Temperature in Electromagnetic Emission System -- 1 Introduction -- 2 Modelling -- 3 Temperature Characteristics and Influencing Factors of Armature-Rail -- 3.1 Temperature Distribution Characteristics of the Armature-Rail Interface -- 3.2 Temperature Time-Varying Characteristics of Armature -- 3.3 Effect of Current Waveform -- 4 Conclusion -- References -- Effect of Crystal Orientation on Vacuum Breakdown Characteristics of Copper Nanoelectrode -- 1 Introduction -- 2 Simulation Method -- 3 Effect of Crystal Orientation on Electrothermal Effect of Copper Nanoelectrode -- 4 Effect of Crystal Orientation on Vacuum Breakdown Characteristics of Copper Nanoelectrode -- 5 Conclusions. References -- Vibration Simulation of High Voltage Cables Laid on the Stress Absorption Mechanical Device Composed of Three Arcs in the Bridge Offset -- 1 Introduction -- 2 Stress Simulation of High Voltage Cables Laid on the Stress Absorption Mechanical Device -- 3 The Simulation Results -- 4 Conclusions -- References -- Consider the Collaborative Optimization Strategy of Electric Vehicles Under Dynamic Electricity Price Mechanism -- 1 Introduction -- 2 Dynamic Tariff Mechanism -- 2.1 Basic Principles of Dynamic Mechanisms -- 2.2 Link Between Charging Demand and Electricity Prices -- 2.3 L Power Demand Sensitivity Matrix -- 3 Case Study -- 3.1 Case 1 Validating the Effectiveness of Electric Vehicles Under This Dynamic Mechanism -- 3.2 Case 2 Validating the Effectiveness of the Most Efficient Optimization Scheduling Means After Comprehensively Considering Various Optimization Goals Under This Dynamic Mechanism -- 4 Conclusion -- References -- Effect of UV Irradiation on the Surface Morphology and Chemical Structure of Epoxy Resin -- 1 Introduction -- 2 Material and Experiment -- 2.1 Material -- 2.2 Sample Preparation -- 2.3 UV Irradiation -- 2.4 Experiment -- 3 Result and Disscussion -- 3.1 Surface Morphology -- 3.2 Surface Chemical Structure -- 4 Disscussion -- 5 Conclusion -- References -- Study on the Influence of Key Component on the Fast Vacuum Switch -- 1 Introduction -- 2 The Simulation Model -- 3 Result and Discussion -- 3.1 The Influence of Repulsive Coil -- 3.2 The Influence of Bistable Spring -- 3.3 The Influence of the Repulsive Disk -- 4 Conclusion -- References -- Study on Thermal Aging Characteristics of Typical Electromagnetic Coil Glass Fiber/Epoxy Composite Materials -- 1 Introduction -- 2 Thermal Ageing Test -- 2.1 Finite Element Simulation -- 2.2 Determination of Thermal Aging Temperature -- 2.3 Determination of Thermal Aging Time. 2.4 Determination of the Number of Samples. |
Record Nr. | UNINA-9910842489603321 |
Yang Qingxin | ||
Singapore : , : Springer Nature Singapore : , : Imprint : Springer, , 2024 | ||
Materiale a stampa | ||
Lo trovi qui: Univ. Federico II | ||
|
The Proceedings of the 18th Annual Conference of China Electrotechnical Society : Volume IV |
Autore | Yang Qingxin |
Edizione | [1st ed.] |
Pubbl/distr/stampa | Singapore : , : Springer Singapore Pte. Limited, , 2024 |
Descrizione fisica | 1 online resource (891 pages) |
Disciplina | 621.3 |
Altri autori (Persone) |
LiZewen
LuoAn |
Collana | Lecture Notes in Electrical Engineering Series |
ISBN | 981-9713-51-X |
Formato | Materiale a stampa |
Livello bibliografico | Monografia |
Lingua di pubblicazione | eng |
Nota di contenuto |
Intro -- Contents -- Large Signal Stability Analysis Method of DC Microgrid Clusters Based on Input-to-State Stability Theory -- 1 Introduction -- 2 Large Signal Modeling of DCMGCs -- 3 Derivation of Large Signal Stability Criterion Based on ISS Theory -- 3.1 ISS-Lyapunov Function Analysis Inside the DCMGs -- 3.2 ISS-Lyapunov Function Analysis Adjacent DCMGs -- 4 Simulation Verification -- 5 Conclusion -- References -- Characteristics Analysis of Integrated Linear Motor Combined Propulsion Levitation and Guidance Used for Superconducting Electrodynamic Suspension Train -- 1 Introduction -- 2 PLG System Topology and Working Principle -- 2.1 PLG System Topology -- 2.2 PLG System Working Principle -- 3 PLG System Comprehensive Performance Calculation Model -- 3.1 PLG System Equivalent Circuit Model -- 3.2 Six-Degree-of-Freedom Electromagnetic Load Calculation Model of PLG System Suspension Frame -- 3.3 Stiffness Calculation Model of PLG System Suspension Frame -- 3.4 Model Verification -- 4 Analysis of PLG System Characteristics -- 4.1 Model Parameters -- 4.2 Analysis of Lift-to-Drag Ratio and Stiffness Characteristics of the System -- 4.3 Analysis of Traction Characteristics -- 4.4 Electromagnetic Disturbance Characteristics of SC Coils -- 5 Conclusions -- References -- Simulation and Research on Short Circuit Breaking Arc Characteristics of Micro Circuit Breaker -- 1 Introduction -- 2 Short Circuit Breaking Arc Simulation Model -- 2.1 Geometric Model of Micro Circuit Breaker -- 2.2 Simulation Mathematical Model Based on Magnetohydrodynamics -- 3 Simulation Results and Experimental Verification -- 3.1 Simulation Result -- 3.2 Experimental Verification -- 4 Analysis of Influencing Factors -- 4.1 Analysis of the Influence of the Number of Arc Extinguishing Grids -- 4.2 Analysis of the Influence of Vent Length -- 5 Conclusion -- References.
Stability Study of Epoxy Resin in Low-Vacuum Environment Applied in Ground Coil Module of High-Speed Flying Train -- 1 Introduction -- 2 Samples and Experiments -- 2.1 Insulation Material Samples -- 2.2 Experimental Method -- 3 Results and Analysis -- 3.1 Changes in Appearance -- 3.2 Weight Test -- 3.3 Infrared Spectroscopy Test -- 3.4 Electron Microscopy Scanning Test -- 3.5 Broadband Dielectric Spectroscopy Test -- 3.6 Breakdown Test -- 3.7 Mechanical Tensile Performance Testing -- 3.8 Dynamic Thermal Mechanical Test -- 3.9 Flashover Performance Test -- 3.10 Thermal Conductivity Performance Test -- 4 Conclusion -- References -- Design of Magnetic Circuit Isolation Bi-stable Permanent Magnet Operating Mechanism -- 1 Introduction -- 2 Working Principle Section -- 3 Establishment of Finite Element Model -- 3.1 Model Building -- 3.2 Simulation Results and Analysis -- 4 Instance Verification -- 5 Conclusion -- References -- Distributed Resilient Control Strategy of DC Microgrids Against False Data Injection Attacks (FDIAs) -- 1 Introduction -- 2 Proposed Resilient Secondary Control of DCMGs -- 2.1 Distributed Secondary Control of DCMGs -- 2.2 FDIA Model and Analysis -- 2.3 Distributed Resilient Control Against FDIAs -- 3 MATLAB/Simulink Simulation Verification -- 3.1 Case 1: Stable Operation of DCMGs -- 3.2 Case 2: Impact of the FDIAs Signals to the DCMG -- 3.3 Case 3: Mitigation of the FDIA by the Proposed Distributed Resilient Control Strategy -- 4 Conclusion -- References -- Large Signal Stability Analysis Based on Takagi-Sugeno Modeling for State Feedback Control of DC Microgrids -- 1 Introduction -- 2 Modeling of DCMGs Based on State Feedback Control -- 3 Large Signal Stability Criterion Based on T-S Modeling of DCMGs -- 4 Simulation Verification -- 5 Conclusion -- References -- Two-Stage Stochastic Optimization of DC Microgrid Clusters. 1 Introduction -- 2 DCMGC Configuration and Control Strategy -- 2.1 DCMGC Configuration -- 2.2 DCMGC Hierarchical Control Strategy -- 3 DCMGC System Model -- 3.1 PV and WT System Model -- 3.2 BESS Model -- 4 Two Stage Stochastic Linear Optimization -- 4.1 General Model Formulation -- 4.2 Objective Function and Constraints -- 5 Simulation -- 6 Conclusion -- References -- Design of Bi-directional Rotary CPS Electromagnetic Operating Mechanism -- 1 Introduction -- 2 The Working Principle -- 3 Finite Element Simulation Analysis -- 3.1 Simulation Model of Mechanism -- 3.2 Simulation Results and Analysis -- 4 Experimentation -- References -- Study of Optimal Charging Method for Lithium-Ion Batteries Considering Charging Time and Energy Loss -- 1 Introduction -- 2 Battery Model -- 2.1 Equivalent Circuit Model -- 2.2 Thermal Model -- 2.3 Modelling of Coupling -- 2.4 Model Parameter Identification -- 3 Optimised Charging Method -- 3.1 Charge Objective Function -- 3.2 Constraint -- 3.3 Optimization Algorithm -- 4 Results and Discussion -- 5 Conclude -- References -- Early Warning Strategy for Thermal Runaway of Lithium-Ion Battery Packs -- 1 Introduction -- 2 Experimental Method -- 3 Experiment and Results -- 4 Conclusions -- References -- Multi-load Series Fault Arc Identification Based on PSO-RELM -- 1 Introduction -- 2 Multi-load Series Arc Fault Experimental Program -- 3 The Establishment of Characteristic Quantity Database -- 3.1 Experimental Data -- 3.2 Feature Extraction of Fault Arc -- 4 Fault Arc Detection Model -- 4.1 Regularized Extreme Learning Machine -- 4.2 Particle Swarm Optimization Regularization Extreme Learning Machine -- 4.3 Result Analysis -- 5 Conclusion -- References -- Analysis on an UHV Converter Station AC Filter Circuit Breaker Phase Selection Closing Operation Risk -- 1 Introduction -- 2 AC Filter Configuration. 3 Operation Risk Analysis of AC Filter When Putting into -- 3.1 Filter Arrester Action Voltage Check -- 3.2 Electrical Transient Stress Check of Lightning Arrester for Filter -- 3.3 External Insulation Calculation of Filter Equipment -- 4 Conclusion -- References -- Shape Finding of Ice Covered Wire for Overhead Line Based on Finite Element Analysis -- 1 Introduction -- 2 Catenary Theory Formula Derived -- 3 Simulation and Form-Finding Steps for Transmission Line Conductors in ANSYS Workbench -- 3.1 Basic Assumptions -- 3.2 Simulation of Transmission Lines in ANSYS Workbench -- 3.3 Form-Finding Steps for Transmission Line Conductors -- 4 Case Analysis -- 5 Conclusion -- References -- Diagnosis Method for Eccentric Fault Severity of Permanent Magnet Synchronous Generator Based on Bearing Seat Vibration Characteristics -- 1 Introduction -- 2 Theoretical Analysis -- 2.1 Magnetic Flux Density -- 2.2 The Vibration Characteristics of the Bearing Seat in Normal and RAGE Conditions -- 3 RAGE Severity Diagnostic Method -- 3.1 Overall Research Strategy -- 3.2 RAGE Severity Diagnostic Method -- 4 Finite Element Analysis -- 4.1 FEA Setup -- 4.2 FEA Results of MPPUA -- 5 Conclusion -- References -- Analysis of Electromagnetic Performance of an AUV Wireless Charge Device with New Coil Structure -- 1 Introduction -- 2 Structure of Coil -- 3 Verification by Simulation -- 3.1 Coil Inductance -- 3.2 Circuit Simulation -- 4 Conclusion -- References -- Correlation Analysis of Altitude and Lightning Trip Rate Based on R Language -- 1 Introduction -- 2 Data Sources and Processing -- 2.1 Data Sources -- 2.2 Data Reduction -- 2.3 Statistical Distribution of Data -- 3 Data Analysis of Altitude and Lightning Trip-Out Rate -- 3.1 Introduction of R Language -- 3.2 Correlation Analysis of Altitude and Lightning Trip-Out Rate. 3.3 Regression Analysis of Altitude and Lightning Trip-Out Rate -- 4 Conclusion -- References -- Analysis of Electromagnetic Performance of a Pulsed HIA with Novel Compensating Winding -- 1 Introduction -- 2 Basic Structure and Operating Principle -- 2.1 Basic Structure -- 2.2 Operating Principle -- 3 Connection of Winding and External Circuit -- 3.1 Passive Compensation -- 3.2 Active Feed -- 4 Compensation Effect Comparison -- 4.1 No Load -- 4.2 Passive Compensation -- 4.3 Active Feed -- 5 Conclusion -- References -- Research on Improving of Quality Management of Domestic Motor in Nuclear Power Plant -- 1 Preface -- 2 Motor Defect Case -- 3 Analysis of Common Problems of Motor -- 3.1 Investigation Situation -- 3.2 Expansion Investigation of Multiple Nuclear Power Plant -- 4 Suggested Measures for Quality Management of Domestic Motor -- 4.1 Establish Motor Maintenance Team -- 4.2 Suggestions on In-Service Management of Motor -- 4.3 Suggestions for Motor Manufacturing Stage -- 5 Conclusion -- References -- Arc-Fault Unwanted Tripping Survey of Hair Dryers with GB31143-Listed Products -- 1 Introduction -- 2 Platform and Methodology -- 2.1 Arc Fault Tester -- 2.2 Data Acquisition Unit -- 2.3 Hair Dryer Unit -- 2.4 AFDD Products Under Tests -- 2.5 Unwanted Tripping Test -- 3 Results and Analysis -- 3.1 Test Results -- 3.2 Current Waveform Analysis -- 4 Conclusion -- References -- Analysis of Repetition Capacitor Charge System Based on Permanent Magnet Excited Homopolar Inductor Alternator -- 1 Introduction -- 2 Block Diagram and Operating Principle of Pulse Power Supply -- 2.1 Block Diagram -- 2.2 Operating Principle -- 3 Capacitor Charging System Average Value Model -- 4 Verification by Simulation -- 4.1 No-Load Induced Voltage -- 4.2 Charging Current and Voltage -- 5 Conclusion -- References. A Study of Multi-microgrid Trading Based on an Improved P2P Two-Way Auction Mechanism. |
Record Nr. | UNINA-9910847092203321 |
Yang Qingxin | ||
Singapore : , : Springer Singapore Pte. Limited, , 2024 | ||
Materiale a stampa | ||
Lo trovi qui: Univ. Federico II | ||
|
The Proceedings of the 18th Annual Conference of China Electrotechnical Society [[electronic resource] ] : Volume II / / edited by Qingxin Yang, Zewen Li, An Luo |
Autore | Yang Qingxin |
Edizione | [1st ed. 2024.] |
Pubbl/distr/stampa | Singapore : , : Springer Nature Singapore : , : Imprint : Springer, , 2024 |
Descrizione fisica | 1 online resource (866 pages) |
Disciplina | 621.3 |
Altri autori (Persone) |
LiZewen
LuoAn |
Collana | Lecture Notes in Electrical Engineering |
Soggetto topico |
Electrical engineering
Electronics Electric power production Electronic circuits Electrical and Electronic Engineering Electronics and Microelectronics, Instrumentation Electrical Power Engineering Electronic Circuits and Systems |
ISBN | 981-9714-28-1 |
Formato | Materiale a stampa |
Livello bibliografico | Monografia |
Lingua di pubblicazione | eng |
Nota di contenuto |
Intro -- Contents -- Distributed Network Reconfiguration Under the Background of High Proportion of Distributed Generation -- 1 Introduction -- 2 A Distribution Network Reconfiguration Model Based on Chance Constraints -- 2.1 Objective Function -- 2.2 Constraint -- 3 Model Transformation -- 4 Case Studies and Analysis -- 4.1 Analysis of Network Reconfiguration Under Deterministic Conditions -- 4.2 Analysis of Network Reconfiguration Under Chance Constraints -- 5 Conclusion -- References -- Characteristics of UHF and Pressure Changes Under Insulation Defects in Oil-Paper Insulation Bushing -- 1 Introduction -- 2 Test Method -- 2.1 Defect Simulation -- 2.2 Test Procedure -- 2.3 Test Procedure -- 3 Test Results -- 3.1 Defect Development Law Under Short-Term Pressure -- 3.2 Defect Development Law Under Long-Term Pressure -- 4 Summary -- References -- Dynamic Capacity Enlargement Calculation Model for Double-Circuit Trench Cable Based on Typical System Links -- 1 Introduction -- 2 Physical Model and Calculation Method -- 2.1 Physical Model -- 2.2 Transient Temperature Calculation of Double-Circuit Trench Cable Based on System Typical Links -- 2.3 Calculation of Dynamic Capacity Enlargement of Double-Circuit Trench Cable -- 3 Results and Discussion -- 3.1 Transfer Function Parameters of the System -- 3.2 Step Load-Time Curves for the Double-Circuit Trench Cable -- 4 Conclusion -- References -- Greedy Algorithm Based Load Optimization of Peak and Valley Electricity Prices for Smart Communities -- 1 Introduction -- 2 Intelligent Community Charging Framework -- 2.1 Load Classification -- 2.2 Intelligent Community Charging Framework -- 2.3 Distribution Characteristics of Electric Vehicle Charging -- 3 Optimized Model Building -- 3.1 Algorithm Optimization Process -- 3.2 Intelligent Community Load Curve -- 4 Experimental Analysis -- 4.1 Basic Information.
4.2 Example Results -- 5 Conclusion -- References -- Fault Analysis and Corrosion at the Lead Seal of High-Voltage Cable Joint -- 1 Introduction -- 2 Analysis of Faulty Cables -- 2.1 A Brief Description of the Faulty Cables -- 2.2 Analysis of Breakdown Accidents -- 3 Electrochemical Corrosion of Lead Seal -- 3.1 Electrochemical Test for Each Structure at the Lead Seal -- 3.2 Diagnosis Method for Water Inlet Defects of Cable Joints -- 4 Conclusion -- References -- Short Fault Current Zero Point Drift and Phase-Controlled Interruption Strategy in Three-Phase Power Transmission Lines -- 1 Theoretical Analysis of the Three-Phase Line Breaking Process After the Short-Circuit Current Enters the Steady State -- 1.1 Study on Three-Phase Short-Circuit Fault Breaking of Isolated Neutral System -- 1.2 Study on Three-Phase Short-Circuit Fault Breaking of Directly Earthed Neutral System -- 2 Theoretical Analysis of Three-Phase Line Breaking When the Short-Circuit Current Does not Enter the Steady State -- 3 Simulation Verification -- 3.1 Simulation Analysis of Isolated Neutral System System -- 3.2 Simulation Analysis of Directly Earthed Neutral System -- 4 Conclusion -- References -- Optical Detection of Corona Discharge Based on SiPM at DC Voltage -- 1 Introduction -- 2 Experimental Description -- 2.1 SiPM Signal Processing Circuit -- 2.2 Measuring Circuit -- 3 Experiment Results -- 3.1 Corona Discharge Waveform at DC Voltage -- 3.2 Frequency Domain Analysis of Corona Discharge -- 3.3 Corona Discharge Waveform at AC Voltage -- 4 Conclusions -- References -- Analysis and Optimization of Vibration Reduction Structure for Bridge Cable Engineering -- 1 Introduction -- 2 Analysis of Factors Influencing Vibration Reduction of Bridge Cables -- 2.1 Influence of Support Spacing on Cable Vibration Reduction. 2.2 Influence of Support Stiffness on Cable Vibration Reduction -- 2.3 Influence of Damping on Cable Damping -- 3 Conclusion -- References -- PMSM Harmonic Current Suppression Based on Fuzzy PR Controller -- 1 Introduction -- 2 Harmonic Analysis of PMSM -- 3 Control Strategy Analysis and Design -- 3.1 PR Control and Its Parameter Influence Analysis -- 3.2 Theoretical Analysis and Existing Problems of Harmonic Suppression -- 3.3 Design of Fuzzy Proportional Resonant Controller -- 4 Verification and Analysis -- 5 Conclusions -- References -- Fault Analysis of 30 kV Cable on Electric Locomotive -- 1 Introduction -- 2 Fault and Test Design -- 3 Test and Analysis -- 3.1 Physical and Mechanical Performance Test -- 3.2 Partial Discharge Test -- 3.3 DSC Test of Insulation and Sheath Materials -- 3.4 Temperature Rise and Simulated Grounding Circulation Test -- 4 Conclusion -- 5 Proposal -- References -- An Adaptive Mesh Method for Multi Physical Field Coupling of Electromagnetic Rail Launcher -- 1 Introduction -- 2 Mathematical Physical Model of the Sliding Electric Contact Problem -- 2.1 Basic Theory of Electromagnetic and Thermal Fields -- 2.2 Interface Processing Based on Split Nodes -- 3 Result Analysis of Constant Mesh Model and Adaptive Mesh Model -- 4 Numerical Analysis of C-Type Armature Under Multi-field Coupling -- 5 Conclusions -- References -- Research on Temperature of Dry Hollow Reactor Based on Multiphysics Simulation -- 1 Introduction -- 2 Theory of Physical Field of Air-Core Reactor -- 2.1 Magnetic Field Calculation of the Power Reactor -- 2.2 Fluid-Temperature Field Calculation -- 3 Multi-physics Field Coupling Simulation Calculation of Dry-Type Air-Core Reactor -- 3.1 Simulation Model -- 3.2 Reactor Material Parameters -- 4 Simulation Result Analysis -- 4.1 Analysis of Magnetic Field Simulation Results. 4.2 Analysis of Fluid-Temperature Coupling Results -- 5 Conclusion -- References -- Research on Eigenvalue of Excitation Signal in Nondestructive Testing of Power Transformer Core -- 1 Introduction -- 2 Simulation Study and Hardware Detection System Construction -- 3 MBN Signal Feature Extraction Methods -- 3.1 MBN Signal Amplification Filtering and Wavelet Denoising -- 3.2 Feature Extraction -- 4 The Influence of Excitation Signals on the Characteristics of MBN Signals in the Iron Core -- 4.1 The Impact of Excitation Signal Waveform on the MBN Signals of the Transformer Core -- 4.2 The Influence of Excitation Signal Frequency on the MBN Signals of the Transformer Core -- 4.3 The Influence of Excitation Signal Amplitude on the MBN Signal of the Transformer Core -- 5 Conclusion -- References -- Key Technology Research on Quality Control of Valve-Side Dry Bushings of Domestic UHV Converter -- 1 Introduction -- 2 Quality Control Requirements for the Design Stage of the Side Bushing of High-End Rheological Valve -- 2.1 Structural Composition of the Side Sleeve of ±800 kV UHV Rheological Valve -- 2.2 Key Field Strength Control Requirements for the Side Bushing of High-End Rheological Valve -- 2.3 Analysis of Thermal Field Distribution Law of Side Bushing of High-End Rheological Valve -- 3 Quality Control Requirements for the Production Process of High-End Rheological Valve Side Bushing -- 3.1 Pre-processing -- 3.2 Roll -- 3.3 Casting and Curing -- 3.4 Turning -- 4 Conclusion -- References -- 8kW Non-magnetic RF Power Amplifier of 5T Human Body Magnetic Resonance -- 1 Introduction -- 2 Methods -- 2.1 Complete Design of the Machine -- 2.2 Realization of Non-magnetic Planar Baroclinic and High Power -- 2.3 Realization of Dual Directional Coupler -- 2.4 Analog Negative Feedback Loop Design -- 3 Experimental Validation and Results. 3.1 Testing of Non-magnetic Planar Baluns and Power Combiner -- 3.2 Measurement of Dual Directional Couplers -- 3.3 Gain Nonlinearity Correction Test -- 3.4 Overall System Test Results -- 4 Conclusions -- References -- Flashover Characteristics of the Interface of SF6-Epoxy Resin Impregnated Paper with Particles Contamination -- 1 Introduction -- 2 Surface Flashover Experimental Platform -- 3 Flashover Characteristics of Epoxy Resin with Particles Attached on the Surface -- 3.1 Flashover Characteristics of Metal Particles Attached to the Surface -- 3.2 Flashover Characteristics of Non-metallic Particles Attached to the Surface -- 4 Analysis and Discussion -- 5 Conclusion -- References -- Long-Term Voltage Withstand Characteristics of the Interface of SF6-epoxy Resin Impregnated Paper Under AC/DC Superimposed Voltage and DC Voltage -- 1 Introduction -- 2 Valve Side Bushing Flashover Experimental Platform -- 2.1 AC/DC Superimposed Voltage Experimental Platform -- 2.2 The Method of Voltage Application in Short-Time/long-Term Experiment -- 3 The Surface Flashover Characteristics of the Simulated Bushing -- 3.1 The Short-Time Flashover Characteristics of SF6-Epoxy Gas-Solid Interface -- 3.2 The Research of the Long-Term Flashover Characteristics -- 4 Analysis on Flashover Mechanism of the Valve Side of Bushing -- 5 Conclusion -- References -- An Adaptive Test Frequency Selection Method for Power Cable Defect FDR Detection -- 1 Introduction -- 2 Principle -- 3 Methodology -- 4 Results -- 4.1 Prototype -- 4.2 Experiment -- 5 Conclusion -- References -- Research and Demonstration Verification of Flexible Interconnection Operation Control and Fault Defense Strategies for Microgrid Groups Based on Multiflow Fusion -- 1 Introduction -- 2 Digital Transformation and Multi- flow Integration of Distribution Network. 2.1 Demand for Digital Transformation of Distribution Network. |
Record Nr. | UNINA-9910847070803321 |
Yang Qingxin | ||
Singapore : , : Springer Nature Singapore : , : Imprint : Springer, , 2024 | ||
Materiale a stampa | ||
Lo trovi qui: Univ. Federico II | ||
|
The Proceedings of the 18th Annual Conference of China Electrotechnical Society : Volume I |
Autore | Yang Qingxin |
Edizione | [1st ed.] |
Pubbl/distr/stampa | Singapore : , : Springer Singapore Pte. Limited, , 2024 |
Descrizione fisica | 1 online resource (930 pages) |
Disciplina | 621.3 |
Altri autori (Persone) |
LiZewen
LuoAn |
Collana | Lecture Notes in Electrical Engineering Series |
ISBN | 981-9714-47-8 |
Formato | Materiale a stampa |
Livello bibliografico | Monografia |
Lingua di pubblicazione | eng |
Record Nr. | UNINA-9910847082303321 |
Yang Qingxin | ||
Singapore : , : Springer Singapore Pte. Limited, , 2024 | ||
Materiale a stampa | ||
Lo trovi qui: Univ. Federico II | ||
|
The Proceedings of the 18th Annual Conference of China Electrotechnical Society : Volume III / / edited by Qingxin Yang, Zewen Li, An Luo |
Autore | Yang Qingxin |
Edizione | [1st ed. 2024.] |
Pubbl/distr/stampa | Singapore : , : Springer Nature Singapore : , : Imprint : Springer, , 2024 |
Descrizione fisica | 1 online resource (876 pages) |
Disciplina | 621.3 |
Altri autori (Persone) |
LiZewen
LuoAn |
Collana | Lecture Notes in Electrical Engineering |
Soggetto topico |
Electrical engineering
Electronics Electric power production Electronic circuits Electrical and Electronic Engineering Electronics and Microelectronics, Instrumentation Electrical Power Engineering Electronic Circuits and Systems |
ISBN | 981-9714-20-6 |
Formato | Materiale a stampa |
Livello bibliografico | Monografia |
Lingua di pubblicazione | eng |
Nota di contenuto |
Intro -- Contents -- Fault Tree Analysis Method of Electric Vehicle Charging Based on Binary Decision Diagram -- 1 Introduction -- 2 Fundamentals of the BDD -- 3 Establishment of EV Charging Fault Tree -- 4 Sequencing Method of Basic Events -- 5 The Method for Converting Fault Tree to BDD -- 5.1 ITE-Based Conversion Method -- 5.2 Conversion of EV Charging Fault Tree -- 6 Conclusion -- References -- Exploring the Influence of Different Types of Toughening Agents on the Thermodynamic Properties of Epoxy Polymers -- 1 Introduction -- 2 Sample Preparation -- 2.1 Raw Material -- 2.2 Sample Preparation Process -- 3 Test Method -- 3.1 Mechanical Properties -- 3.2 Breakdown Voltage Test -- 3.3 Glass Transition Temperature Test -- 4 Simulation Analysis -- 4.1 Properties of Materials Based on Materials Studio -- 5 Conclusion -- References -- Study on Improving the Toughness and Heat Resistance of Polylactic Acid Insulation Materials by Blending Impact Modifier and Annealing Treatment -- 1 Introduction -- 2 Experiment -- 2.1 Materials and Equipment -- 2.2 Preparation of MBS/PLA Mixture -- 2.3 Annealing Treatment -- 2.4 Characterization -- 3 Results and Discussion -- 3.1 Mechanical Properties -- 3.2 Thermal Stability -- 3.3 Insulating Property -- 4 Conclusion -- References -- Study on the Effect of Diamond on the Dielectric Properties of Epoxy Resin Composites During Aging -- 1 Introduction -- 2 Experiment -- 2.1 Materials and Instruments -- 2.2 Epoxy Composite Sample Preparation -- 2.3 Heat Treatment Test -- 3 Method of Measurement -- 3.1 Power Frequency Breakdown Voltage Test -- 3.2 Volume Resistivity Test -- 4 Analysis -- 4.1 Fourier Transform Infrared (FTIR) -- 4.2 Breakdown Strength -- 4.3 Volume Resistivity -- 4.4 Molecular Dynamics Simulation -- 4.5 Energy Level Analysis Before and After Aging Treatment -- 5 Conclusion -- References.
Review of the State of the Art and Development Trend of Thermochemical Heat Storage Technology for Medium Temperature Applications -- 1 Introduction -- 2 Classification of Thermochemical Energy Storage Reactions and Working Pairs -- 2.1 Ammonia Decomposition Reaction -- 2.2 Metal Hydride Reactions -- 2.3 Redox Reactions -- 2.4 Metal Oxide/Carbonate Absorbing and Desorbing Carbon Dioxide Reactions -- 2.5 Metal Hydroxide Reactions -- 3 Current Status of Research on Material Fabrication and Performance Enhancement -- 3.1 Addition of Nanoparticles -- 3.2 Granulation -- 4 Conclusion -- References -- Calculation and Analysis of Hydrogen Fuel Cell Performance Under Multiphysics Conditions -- 1 Introduction -- 2 Physical Model -- 3 Calculate Battery Performance -- 4 Simulation Model -- 5 Example Analysis -- 5.1 Battery Bipolar Plate Structure -- 5.2 Performance Calculation Results -- 6 Conclusion -- References -- A Fast Calculation Method for Water Drop Collision Coefficient of Wind Turbine Blades During Icing Process Based on Boundary Element Method -- 1 Introduction -- 2 Simulation and Calculation Model of Wind Turbine Blade Flow Field Based on Boundary Element -- 3 Parallel Droplets Tracking Calculation Based on Boundary Element Method -- 4 Comparison of Local Impact Coefficients of Water Droplets Under Different Working Conditions -- 4.1 Comparison of Β1 Distribution on the Surface of Fan Blade Airfoil Under Clean Conditions -- 4.2 Comparison of Β1 Distribution Under Ice Cover -- 5 Conclusion -- References -- Research on Predictive Energy Management Algorithm for Fuel Cell Vehicles -- 1 Introduction -- 2 Power Prediction Algorithms Comparison and Selection -- 3 Design and Optimization of MH-LSTM Algorithm -- 4 Simulation of Predictive Energy Management Strategy for Fuel Cell Vehicles Based on MH-LSTM Algorithm -- 5 Conclusion -- References. Abnormal Discharge Detection for Power Equipment Based on Light-Guiding Structure -- 1 Introduction -- 2 Design Principles and Structural Optimization of Abnormal Discharge Detection Devices -- 2.1 System Structure -- 2.2 Optical Path Simulation Analysis and Structural Design of the Light-Guiding Structure -- 3 Performance Testing of Abnormal Discharge Detection Device -- 3.1 Establishment of Partial Discharge Test Platform -- 3.2 Effect of Discharge Location on Detection Signal Strength -- 4 Conclusion -- References -- Vibration Analysis of Axial Flux Permanent Magnet Synchronous Machines -- 1 Introduction -- 2 Parse the Computational Model -- 2.1 No-Load Conditions -- 2.2 Load Conditions -- 3 Simulation Analysis -- 3.1 Simulation Model of Electromagnetic Characteristics -- 3.2 Simulation of Electromagnetic Characteristics of No-Load Conditions -- 3.3 Simulation of Electromagnetic Characteristics of Load Conditions -- 3.4 Model Analysis -- 3.5 Dynamic Noise Simulation Analysis -- 4 Technical Work Preparation -- 5 Optimization of Motor Vibration -- 6 Conclusion -- References -- The Sensorless Control of CSI-Fed PMSM Drives Based on a High-Order SMO -- 1 Introduction -- 2 CSI-Fed PMSM Model -- 3 High-Order SMO Design and Analysis -- 3.1 Conventional SMO Design -- 3.2 High-Order SMO Design -- 4 Simulation Verification -- 5 Conclusion -- References -- A Study on Machine Learning-Based Photovoltaic String Multifault Diagnosis Model -- 1 Introduction -- 2 Data Processing -- 2.1 Data Cleaning -- 2.2 Higher-Order Feature Extraction -- 3 Model and Interpretability -- 3.1 Model Selection -- 3.2 Model Interpretability -- 4 Case Study -- 4.1 Model Performance Evaluation -- 4.2 Interpretability: Group Analysis -- 4.3 Interpretability: Individual Analysis -- 5 Conclusion -- References. Review of Thermophysical and Reaction Kinetic Characteristics of Metal Hydroxide Thermochemical Energy Storage System -- 1 Introduction -- 2 Thermophysical and Reaction Kinetic Characteristics -- 2.1 Specific Heat Capacity -- 2.2 Energy Density -- 2.3 Reaction Enthalpy -- 2.4 Chemical Reaction Equilibrium -- 2.5 Reaction Kinetics -- 3 Conclusion -- References -- Analysis on Causes of an Arrester Anomaly Based on Electric-Temperature Field Simulation -- 1 Introduction -- 2 Brief Description of Anomaly -- 3 Inspection and Test of Substation -- 3.1 Appearance Inspection and Leakage Current Inspection -- 3.2 Infrared Precision Temperature Measurement -- 3.3 Electrical Test -- 4 Disassembly Inspection and Test Verification -- 4.1 Disassembly Inspection -- 4.2 Electrical Test After Disassembly -- 5 Abnormal Arrester Electric Field Simulation -- 5.1 Model Building -- 5.2 Simulation Methods -- 5.3 Analysis of Results -- 6 Simulation of Electrical-Temperature Field of Anomalous Arrester -- 6.1 Model Building -- 6.2 Simulation Methods -- 6.3 Analysis of Results -- 7 Conclusion -- References -- A Study on the Optimal Capacity Configuration of Hybrid Energy Storage with Integrated Hydro-Photovoltaic Power Systems in Beipanjiang River Basin -- 1 Introduction -- 2 Related Energy Technology Models -- 2.1 Pumped Hydro-Electric Storage System -- 2.2 Electrochemical Energy Storage Model -- 2.3 Hydrogen Energy Storage Model -- 2.4 Photovoltaic Power Generation System Model -- 3 The Optimal Capacity Analysis Under Economy Considerations -- 3.1 Full-Life-Cycle Cost -- 3.2 Numerical Analysis of Coupled Operation of Various Energy Storage Modes -- 4 Summary -- Identification of Synchronous Motor Parameters Using Multi-link Improvement Harris Hawks Optimization -- 1 Introduction -- 2 Multi-link Improvement Harris Hawks Optimization. 2.1 Initializing Population by Using Logisti Chaos Maps -- 2.2 Preserve the Best Contemporary Individual -- 2.3 Introducing a Random Reverse Learning Strategy -- 3 PMSM Parameter Identification Based on MIHHO -- 3.1 Principle of Parameter Identification for Permanent Magnet Synchronous Motors -- 3.2 Parameter Identification Process of PMSM -- 4 Simulation Analysis of Parameter Identification of MIHHO -- 5 Conclusions -- References -- Research on Temperature Characteristics of Space Charge Distribution in Epoxy Composites for HVDC GIL -- 1 Introduction -- 2 Experiments -- 2.1 Sample Preparation -- 2.2 Test Plan -- 3 Results and Discussion -- 3.1 Research on Dynamic Characteristics of Space Charge -- 3.2 Trap Characteristics of Epoxy Composites -- 4 Conclusions -- References -- Experimental Study on Insulation of Submerged Phase Change Cooling Deicing Device -- 1 Introduction -- 2 Insulation Test Item -- 3 Test Method for Two-Phase Flow Insulation -- 3.1 Insulation Test Equipment -- 3.2 Generation and Control Method of Two-Phase Flow -- 4 Test Criterion -- 5 Conclusion -- References -- Multi-stage LCR Square-Wave Circuit as Practical Pulsed Power Supply for Electromagnetic Railgun -- 1 Introduction -- 2 Pulse Forming Network (PFN) for Electromagnetic Railgun Launcher -- 2.1 Pulse Forming Network (PFN) -- 2.2 Characteristics of PFN as PPS Driving EM Railguns -- 3 Multi-stage Parallel LCR Square-Wave Circuit as Practical PPS to Drive Electromagnetic Railguns -- 3.1 Mathematical Principles and Physical Model -- 3.2 Circuit Structure and Basic Parameter Design Scheme -- 3.3 Design of Parameters for Five-Stage Parallel LCR Square-Wave Circuit Driving Railgun Load -- 3.4 Current Waveform Simulation of Five-Stage Parallel LCR Circuit -- 3.5 Characteristics of Multi-stage Parallel LCR Square-Wave Circuit as Practical PPS -- 4 Conclusion and Discussion. References. |
Record Nr. | UNINA-9910847075703321 |
Yang Qingxin | ||
Singapore : , : Springer Nature Singapore : , : Imprint : Springer, , 2024 | ||
Materiale a stampa | ||
Lo trovi qui: Univ. Federico II | ||
|