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The Proceedings of 2023 4th International Symposium on Insulation and Discharge Computation for Power Equipment (IDCOMPU2023) : Volume IV
| The Proceedings of 2023 4th International Symposium on Insulation and Discharge Computation for Power Equipment (IDCOMPU2023) : Volume IV |
| Autore | Dong Xuzhu |
| Edizione | [1st ed.] |
| Pubbl/distr/stampa | Singapore : , : Springer Singapore Pte. Limited, , 2024 |
| Descrizione fisica | 1 online resource (713 pages) |
| Altri autori (Persone) | CaiLi |
| Collana | Lecture Notes in Electrical Engineering Series |
| ISBN | 981-9974-13-5 |
| Formato | Materiale a stampa  |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Intro -- Contents -- A New Grounding Mode for Suppressing Circulating Currents of Submarine Cables -- 1 Introduction -- 2 The Proposed New Grounding Mode -- 3 Numerical Validations -- 4 Conclusions -- References -- Preparation and Anti-icing Properties of Chemically Etched Superhydrophobic Aluminum Surface -- 1 Introduction -- 2 Experimental Section -- 2.1 Materials -- 2.2 Sample Preparation -- 2.3 Experiment Method -- 3 Results and Discussion -- 3.1 Effect of Solution Concentration on Surface Wettability of Aluminum Surface Samples -- 3.2 The Effect of Etching Time on the Surface Wettability of Aluminum Surface Samples -- 3.3 Microscopic Morphology and Wettability of Superhydrophobic Aluminum Surface -- 3.4 Ice Coating Characteristics of Superhydrophobic Aluminum Surface -- 4 Conclusion -- References -- Research on High Voltage Pulse Ice-Breaking Technology -- 1 Introduction -- 2 Simulation Model Construction -- 3 Simulation Results and Analysis -- 3.1 Selection of Observation Points -- 3.2 Influence of Excitation Intensity on Electric Field Intensity of Observation Points -- 3.3 Effect of Pulse Rising Edge on Electric Field Intensity at Observation Points -- 3.4 Influence of Electrode Position on Electric Field Intensity of Observation Points -- 3.5 Research on Breakdown Conditions of Crescent-Shaped Ice Accumulation Observation Points -- 4 Conclusion -- References -- Design and Implementation of Electric Field-Induction Based Energy Harvesting System for High Voltage Power Transmission Lines -- 1 Introduction -- 2 Overall System Structure -- 3 System Analysis and Optimal Design -- 3.1 System Analysis and Output Power Promotion -- 3.2 Optimal Design of Energy Harvesting Plates -- 3.3 Charge and Discharge Process Design -- 4 System Simulation Verification -- 4.1 Simulation of Power Output Characteristics -- 4.2 Simulation of System Safety.
5 System Experiment Verification -- 5.1 Experimental Setup -- 5.2 Experimental Results -- 6 Conclusion -- References -- Defect Identification Method Based on Casing Internal Temperature Variation -- 1 Introduction -- 2 Thermal Analysis of Oil Paper Capacitor Bushing -- 3 The Effect of Internal Moisture on the Temperature Rise of Oil-Paper Casing -- 3.1 The Insulation Oil is Evenly Damped -- 3.2 Moisture on the Final Screen -- 3.3 Zero Screen Moisture -- 4 Conclusion -- References -- Influence of Main Shield Voltage Distribution Configuration on the Post-arc Sheath Development of Vacuum Interrupters -- 1 Introduction -- 2 Particle Simulation and Results -- 2.1 Particle Simulation Model -- 2.2 Simulation Results -- 3 Probe Diagnosis Experimental and Results -- 3.1 Experimental Setup -- 3.2 Experimental Results -- 4 Conclusions -- References -- Simulation Study on Spatial Distribution Characteristics of Partial Discharge UHF Signal in Transformer Outlet Device -- 1 Introduction -- 2 The Establishment of Simulation Model -- 3 Evaluation of UHF Signal Propagation Characteristics -- 4 Examination of the Impact of Partial Discharge on Waveform Analysis -- 5 Summary -- References -- Temperature Field Simulations of Three-Layer Extrusion in 110 kV Grafted Polypropylene Power Cables -- 1 Introduction -- 2 Samples Preparation and Test -- 2.1 Samples Preparation -- 2.2 Samples Test -- 2.3 Test Results -- 3 Thermal Field Simulation and Analysis -- 3.1 Simulation Model and Parameters -- 3.2 Simulation Results and Discussion -- 4 Conclusions -- References -- The Electrical-Thermal Coupling Simulation of Grafted Polypropylene Used in High-Voltage Direct Current Cables -- 1 Introduction -- 2 Methods -- 2.1 Materials and Sample Preparation -- 2.2 Experiment -- 3 Results -- 3.1 FT-IR Characteristics -- 3.2 Volume Conductivity -- 4 Simulation. 4.1 Conductivity-Temperature-Electric Field Dependence -- 4.2 Model and Parameter Setting -- 5 Conclusion -- References -- Optimization Technology of Finite Element Stepper Motor Based on Parametric Modeling -- 1 Introduction -- 2 Parametric Modeling of HSM Based on ANSYS -- 2.1 Model Parameter Formulation -- 2.2 Rotor Parametric Modeling -- 2.3 Stator Parametric Modeling -- 3 HSM Optimization Based on Parametric Model -- 3.1 The Influence of Tooth Width Angle Pitch Angle Ratio on HSM Performance -- 3.2 The Influence of Stator Pitch Angle on Cogging Torque and Holding Torque -- 3.3 Rotor, Stator Different Tooth Width Pitch Angle Ratio -- 4 Conclusion -- References -- Research on Several Key Technologies for the Development of Power Analyzer -- 1 Introduction -- 2 System Solution Design -- 3 Part of the Hardware Circuit Design -- 3.1 Attenuation Circuit -- 3.2 ADC Data Acquisition Module -- 4 FPGA Functional Module Design -- 4.1 Data Cache Module -- 4.2 UDP Module -- 4.3 AXI-Based Tri-Mode Ethernet Module -- 4.4 Optical Conversion Codule -- 5 Simulation and Experiment -- 6 Conclusion -- References -- Experimental and Simulation Verification of the Effects of Different Metal Particle Impurities on the Electrical Properties of Alumina/Epoxy Composites for GIL Insulators -- 1 Introduction -- 2 Experiment -- 3 Results and Discussion -- 3.1 Element Analysis and Micro-morphology Analysis -- 3.2 Glass Transition Temperature -- 3.3 Permittivity and Tan Delta -- 3.4 Power Frequency Breakdown Strength and Volume Resistivity -- 4 Simulation -- 4.1 Model Setup -- 4.2 Theoretical Numerical Prediction Formula -- 4.3 Random Distribution of Metal Impurity Particles by Monte Carlo Method Based on Latin Hypercube Sampling -- 4.4 Boundary Conditions and Equivalence Principle -- 4.5 Simulation Results -- 5 Conclusions -- References. Research on 10 kV Nonlinear Materials Terminal Accessories for Polypropylene-Insulated Cables -- 1 Introduction -- 2 Simulation Model -- 3 Results and Analysis -- 4 Conclusion -- References -- Mechanism of Surface Charge Regulation with Nonlinear Conductivity Coating in C4F7N/CO2 Mixture -- 1 Introduction -- 2 Experimental Setup -- 2.1 Coating Manufacturing Processes -- 2.2 Experimental System and Test Processes -- 3 Results and Discussion -- 3.1 The Results of Surface Potential Measurements -- 3.2 Mechanism of Charge Regulation -- 4 Conclusion -- References -- Prediction Model of Strong Electromagnetic Effect Phenomenon Based on Complement Naive Bayes -- 1 Introduction -- 2 Methodology -- 2.1 Complement Naive Bayes -- 2.2 Term Frequency-Inverse Document Frequency -- 2.3 Probabulistic Calibration -- 2.4 StratifiedKFold -- 3 Experiment -- 3.1 Data Pre-Processing -- 3.2 TFIDF-CNB Model Training -- 3.3 Result -- 4 Conclusion -- References -- Evaluation and Optimization Schemes of Eddy Current Loss on Structural Components for High Voltage Converter Transformer -- 1 Introduction -- 2 Method Description -- 2.1 Leakage Magnetic Field Analysis and Eddy Current Loss Calculation -- 2.2 Main Parameters and Simulation Model -- 3 Estimation and Determination of Shielding Schemes -- 3.1 Determination of Shielding Scheme on Lower Clamps -- 3.2 Scheme Comparison for Eddy Current Loss of Structural Components -- 3.3 Shielding Evaluation on Oil Tank -- 3.4 Overall Leakage Flux Control Scheme and Results -- 4 Experimental Results and Validation -- 4.1 Experimental Test Process -- 4.2 Experimental Results and Analysis -- 5 Conclusion -- References -- Simulation Study on Spread Characteristics of Wildfire Near Transmission Lines -- 1 Introduction -- 2 Methods -- 2.1 Wildfire Spread Model -- 2.2 Cellular Automata Wildfire Spread Rules -- 3 Simulation of Wildfire Spread. 3.1 Selection of Step -- 3.2 No Wind, Flat, and Even Combustible Materials -- 3.3 Windy, Flat, and Even Combustible Materials -- 3.4 No Wind, Uneven, and Even Combustible Materials -- 4 Example Analysis of a Fire Scene Below a Transmission Line -- 5 Results -- References -- Modeling and Simulation of the Dynamic Characteristics of Vacuum Arc in DC Interruption Based on Artificial Current Zero When the Current is Close to Zero -- 1 Introduction -- 2 Physical Model and Assumptions -- 2.1 Physical Model -- 2.2 Modeling Assumptions -- 2.3 Boundary Conditions -- 3 Simulation Results and Discussion -- 3.1 Ion Number Density -- 3.2 Axial Current Density -- 3.3 Ion Pressure -- 3.4 Ion Temperature -- 3.5 Electron Temperature -- 4 Conclusions -- References -- Design and Simulation Analysis of a New Cylindrical Permanent Magnet Linear Motor for Vortex-Induced Vibration Ocean Current Power Generation -- 1 Introduction -- 2 Principle of Vortex-Excited Vibration Power Generation -- 2.1 Vortex-Excited Vibration Energy Capture Principle -- 2.2 Structure and Principle of Cylindrical Permanent Magnet Linear Generator -- 3 Secondary Permanent Magnet Array Without Primary -- 3.1 Permanent Magnet Magnetization Mode -- 3.2 Effect of Polar Arc Coefficient on Air Gap Magnetic Field -- 3.3 Effect of Permanent Magnet Thickness on Air Gap Magnetic Field -- 4 Linear Motor Model with Primary Core -- 4.1 Influence of the Pole Arc Factor on Linear Motors After the Addition of Primary Motors -- 4.2 Effect of Permanent Magnet Thickness and Backing Iron Thickness on Linear Motors -- 5 Load Characteristics of Linear Motors -- 6 Conclusion -- References -- 3D Pic-Mcc Simulation of Particles Expansion for Straight Curved Contact and Butt Contact in the Post-arc Phase -- 1 Introduction -- 2 Simulation Models -- 3 Results and Discussion -- 4 Conclusion -- References. The Electric-Thermal Characteristics of 110 kV Transformer RIP Bushings Based on Electromagnetic-Thermal-Fluid Analysis. |
| Record Nr. | UNINA-9910799244203321 |
Dong Xuzhu
|
||
| Singapore : , : Springer Singapore Pte. Limited, , 2024 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
The Proceedings of 2023 4th International Symposium on Insulation and Discharge Computation for Power Equipment (IDCOMPU2023) : Volume III
| The Proceedings of 2023 4th International Symposium on Insulation and Discharge Computation for Power Equipment (IDCOMPU2023) : Volume III |
| Autore | Dong Xuzhu |
| Edizione | [1st ed.] |
| Pubbl/distr/stampa | Singapore : , : Springer Singapore Pte. Limited, , 2024 |
| Descrizione fisica | 1 online resource (682 pages) |
| Altri autori (Persone) | CaiLi |
| Collana | Lecture Notes in Electrical Engineering Series |
| ISBN | 981-9974-05-4 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Intro -- Contents -- Simulation and Experimental Study of Temporary Grounding Potential Distribution in Power Engineering -- 1 Introduction -- 2 Simulation Calculation of Horizontal Dimension Dispersion Characteristics -- 3 Simulation Calculation of Vertical Dimension Dispersion Characteristics -- 4 Simulation Calculation of Dispersing Current Optimization of Temporary Grounding Device -- 5 Simulation Experiment -- 6 Conclusion -- References -- Study on Lightning Dispersion and Breakdown Protection of Corrosion Protection Layer in Soil Adjacent to Buried Metal Pipeline -- 1 Introduction -- 2 Lightning Strike Dispersion Modelling and Calculation -- 3 Simulation Models and Parameters -- 4 Soil Vertical Dispersion Optimization -- 5 Conclusion -- References -- Study on Dispersion Characteristics and Drag Reduction Efficiency of Transmission Line Tower Fractal Epitaxial Grounding -- 1 Introduction -- 2 Fractal Theory and Model Establishment -- 2.1 Fractal Theory -- 2.2 Model Establishment -- 3 Calculation and Analysis of Grounding Characteristics of Fractal Epitaxial Grounding Grid -- 3.1 The Influence of Angle on Grounding Characteristics -- 3.2 The Influence of Fractal Dimension on Grounding Characteristics -- 3.3 The Influence of Fractal Layers on Grounding Characteristics -- 4 Comparison Between Fractal Epitaxial Grounding Grid and Typical Grounding Grid -- 5 Conclusion -- References -- Research on Resistance Reduction Method of Transmission Line Tower Epitaxial Grounding Based on Slope Soil Nailing Wall -- 1 Introduction -- 2 Analysis of the Influence of Different Factors on the Effect of Soil Nail Wall Assisted Resistance Reduction -- 2.1 Analysis of the Influence of the Number of Connection Lines -- 2.2 Analysis of the Influence of Connection Position -- 2.3 Analysis of the Influence of the Connection Lines Material.
2.4 Analysis of the Influence of the Location of the Pole Tower Grounding Grid -- 3 Conclusion -- References -- A Novel Detection Method for Interface Defect Development of High-Speed Train Cable Terminal -- 1 Introduction -- 2 Case Analysis -- 3 Simulation Study -- 4 Simulation Results -- 5 Experiments and Test Results -- 6 Conclusion -- References -- A 3D Modeling Method for Substations Based on Oblique Photography -- 1 Introduction -- 2 Data Acquisition -- 2.1 Study Area and UAV Selection -- 2.2 Route Design and Image Acquisition -- 3 3D Reconstruction -- 3.1 Aerial Triangulation -- 3.2 Triangulated Irregular Network Construction -- 3.3 Texture Mapping -- 3.4 3D Model of Substation -- 4 Conclusion -- References -- Simulation Study on Motion of Metal Particles During Translation of Flat Plate Electrode -- 1 Introduction -- 2 Simulation Model -- 2.1 Insulation Oil Flow Model -- 2.2 Metal Particle Motion Mode -- 2.3 Solid-liquid Two-Phase Flow Model -- 3 Simulation Results -- 3.1 Simulation Results of Fluid Motion -- 3.2 Simulation Results of Metal Particles Motion -- 4 Conclusion -- References -- The Effect of the Number of Wire Electrodes on the Performance of Wire Plate Electrostatic Precipitators -- 1 Introduction -- 2 Numerical Simulation and Result Analysis -- 2.1 Simulation Module -- 2.2 Simulation Results -- 3 Experiments and Results Analysis -- 3.1 Experimental Setup and Test Methods -- 3.2 Experimental Results -- 4 Conclusion -- References -- The Effect of Inflation Pressure on the Dielectric Recovery Strength of SF6 Circuit Breakers -- 1 Introduction -- 2 Simulation Models and Calculation Methods -- 2.1 Arc Model -- 2.2 Calculation Model for High Voltage Circuit Breakers -- 2.3 Valve Plate Motion Model -- 2.4 SF6 Thermal Critical Breakdown Field Strength -- 2.5 Calculation Method for Recovery Strength of Post Arc Dielectric. 3 Calculation Results of Electric Breakdown Characteristics -- 4 Conclusion -- References -- Investigation on Very Fast Transient Overvoltage Caused by Incomplete Separation of Air-Insulated Switches -- 1 Introduction -- 2 Description of Failure Caused by Incomplete Separation of DS -- 3 Mathematical Model -- 4 Simulations Study -- 5 Results and Discussion -- 5.1 Influence of Main Transformer Inlet Line -- 5.2 Influence of Residual Charge -- 6 Introduction -- References -- The Prediction of the Dielectric Breakdown Properties of 6% C4F7N-94% CO2 Mixtures at 300-4000 K and 0.1-3.2 MPa -- 1 Introduction -- 2 The Method of Calculation -- 3 Results and Discussion -- 3.1 αeff and the (E/N)cr in 6% C4F7N-94% CO2 Mixture at Room Temperature -- 3.2 αeff and the (E/N)cr in 6% C4F7N-94% CO2 Mixtures at High Temperature -- 4 Conclusions -- References -- Study on Arc Extinguishing Capability of HFO-1336mzz(E)/CO2 as SF6 Substitute Gas -- 1 Introduction -- 2 Simulation Model -- 3 Physical Parameter -- 4 Simulation Result Analysis -- 5 Conclusion -- References -- Calculation of Thermodynamic Properties and Transport Coefficients of C4F7N-PTFE Mixtures -- 1 Introduction -- 2 Calculation Principle and Method -- 3 Comparison and Analysis of Calculation Results -- 3.1 Plasma Composition -- 3.2 Thermodynamic Properties -- 3.3 Transport Properties -- 4 Discussion -- 5 Conclusion -- References -- A Physics-Informed Neural Network Model for Temperature Inversion of Axisymmetric Gas Discharge Channel -- 1 Introduction -- 2 Methodology -- 2.1 Dataset -- 2.2 PINN Network -- 2.3 Train -- 3 Results -- 3.1 Performance Under Noise-Free Condition -- 3.2 Performance in Various Noise Condition -- 4 Conclusion -- References -- Lightning Risk Assessment of 330 kV Transmission Line Under Icing Conditions in Qinghai Area -- 1 Introduction. 2 Calculation of Lightning Icing Line Related Parameters -- 2.1 Icing Thickness Calculation Model -- 2.2 Leader Model of Iced Insulator -- 3 Calculation of Lightning Icing Line Related Parameters -- 3.1 Counterattack Trip Rate -- 3.2 Shielding Failure Trip-Out Rate -- 3.3 Lightning Risk Classification Standard -- 4 Case Study -- 4.1 Analysis of Risk Assessment Results -- 5 Conclusion -- References -- Arc Radiation Characteristics of CO2-O2 Mixtures at 0.1-0.8 MPa and 300-30,000 K -- 1 Introduction -- 2 Calculation Method -- 2.1 Plasma Composition -- 2.2 NEC Method -- 3 Results and Discussion -- 3.1 Plasma Composition -- 3.2 NEC Results -- 4 Conclusion -- References -- Arc Interruption Performance of SF6/N2 Gas and Dielectric Recovery in Disconnector -- 1 Introduction -- 2 Simulation Model and Calculation Method -- 2.1 MHD Model -- 2.2 The Geometric Model of Disconnector -- 2.3 Calculation of Critical Breakdown Field Strength -- 2.4 Evaluation of the Dielectric Strength Performance of Gas Mixture -- 3 Simulation Results and Analysis -- 3.1 The Distribution of the Physical Field -- 3.2 The Calculation of Critical Breakdown Voltage -- 4 Conclusion -- References -- Analysis of Fluid Velocity and Temperature Variation Characteristics in Boundary Layer of Transformer Wall -- 1 Introduction -- 2 Simplified Analysis Model of Boundary Layer on Transformer Wall -- 2.1 Simplified Analysis Model -- 2.2 Temperature Fluid Field Control Equation -- 2.3 Boundary Conditions -- 2.4 Material Parameters -- 3 Distribution of Temperature and Fluid Field in Boundary Layer of Transformer Wall -- 3.1 Classification of Fluid Boundary Layer -- 3.2 Impact of Inlet Flow Velocity -- 3.3 Impact of Inlet Flow Temperature -- 3.4 Impact of External Ambient Temperature -- 3.5 Impact of External Heat Transfer Convective Coefficient -- 4 Conclusion -- References. Study on Magnetic Leakage Device Parameters Suitable for Crimping Defects of Carbon Fiber Composite Core Conductor -- 1 Introduction -- 2 Finite Element Theory of Magnetic Flux Leakage Detection -- 3 Simulation Model -- 4 Simulation Analysis -- 4.1 Permanent Magnet Size Selection -- 4.2 Influence of Magnetic Pole Spacing and Radial Air Gap -- 4.3 Case Verification -- 5 Conclusion -- References -- Simulation of Arc Breaking in a 550 kV 80 kA SF6 Circuit Breaker -- 1 Introduction -- 2 Circuit Breaker Simulation Model -- 2.1 Simulation Structure Model and Boundary Conditions -- 2.2 Arc MHD Model -- 3 Simulation Results and Analysis -- 3.1 Variation Characteristics of Temperature Field -- 3.2 Variation Characteristics of Pressure Field -- 4 Conclusion -- References -- Simulation and Design of Electric Field Distribution for the Incoming Conductor Between 330 kV Terminal Tower and 750 kV Substation -- 1 Introduction -- 2 Simulation Model and Electric Field Calculation -- 2.1 Model Building -- 2.2 Electric Field Calculation -- 3 Impact of Different Factors on the Surface Electric Field Strength of Incoming Conductors -- 3.1 Impact of Terminal Tower Width on the Electric Field Strength -- 3.2 Impact of the Distance Between the Terminal Tower and the Portal Frame on the Electric Field Strength -- 3.3 Impact of the Diameter of the Conductors on the Electric Field Strength -- 4 Conclusion -- References -- Research on X Ray Live Work of UHV Transmission Line by Helicopter -- 1 Introduction -- 2 Design of X Ray Live Detection Device for 1 Helicopter -- 2.1 Overall Structure of the Device -- 2.2 Equipotential Detection Tooling -- 2.3 Equipotential Control Terminal -- 3 Performance Test of X Ray Live Detection Device for 2 Helicopter -- 3.1 Electrical Performance Test -- 3.2 Mechanical Property Test -- 3.3 X Ray Shooting Test of Ultra-High Voltage Clamp. 4 Field Application. |
| Record Nr. | UNINA-9910799246403321 |
|
Dong Xuzhu
|
||
| Singapore : , : Springer Singapore Pte. Limited, , 2024 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
The Proceedings of 2023 4th International Symposium on Insulation and Discharge Computation for Power Equipment (IDCOMPU2023) [[electronic resource] ] : Volume II / / edited by Xuzhu Dong, Li Cai Cai
| The Proceedings of 2023 4th International Symposium on Insulation and Discharge Computation for Power Equipment (IDCOMPU2023) [[electronic resource] ] : Volume II / / edited by Xuzhu Dong, Li Cai Cai |
| Autore | Dong Xuzhu |
| Edizione | [1st ed. 2024.] |
| Pubbl/distr/stampa | Singapore : , : Springer Nature Singapore : , : Imprint : Springer, , 2024 |
| Descrizione fisica | 1 online resource (731 pages) |
| Disciplina | 621.31 |
| Altri autori (Persone) | CaiLi Cai |
| Collana | Lecture Notes in Electrical Engineering |
| Soggetto topico |
Electric power production
Electronics Electrical Power Engineering Electronics and Microelectronics, Instrumentation |
| ISBN | 981-9974-01-1 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910805575003321 |
|
Dong Xuzhu
|
||
| Singapore : , : Springer Nature Singapore : , : Imprint : Springer, , 2024 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
The Proceedings of 2023 4th International Symposium on Insulation and Discharge Computation for Power Equipment (IDCOMPU2023) [[electronic resource] ] : Volume I / / edited by Xuzhu Dong, Li Cai
| The Proceedings of 2023 4th International Symposium on Insulation and Discharge Computation for Power Equipment (IDCOMPU2023) [[electronic resource] ] : Volume I / / edited by Xuzhu Dong, Li Cai |
| Autore | Dong Xuzhu |
| Edizione | [1st ed. 2024.] |
| Pubbl/distr/stampa | Singapore : , : Springer Nature Singapore : , : Imprint : Springer, , 2024 |
| Descrizione fisica | 1 online resource (698 pages) |
| Disciplina | 621.31937 |
| Altri autori (Persone) | CaiLi |
| Collana | Lecture Notes in Electrical Engineering |
| Soggetto topico |
Electric power production
Electronics Electrical Power Engineering Electronics and Microelectronics, Instrumentation |
| ISBN | 981-9973-93-7 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Intro -- Contents -- The Effect of Contact Structure on Electromagnetic Force -- 1 Introduction -- 2 Contact Structures and Simulation Method -- 3 Simulation Results -- 4 Conclusion -- References -- Partial Discharge Characteristics of Millimeter Metal Particle on a GIS Insulator Surface Under Long-Term Constant Voltage -- 1 Introduction -- 2 Experiment Arrangement -- 2.1 Experiment Platform -- 2.2 PD Detection System -- 2.3 Experimental Model -- 2.4 Defect Setting -- 2.5 Voltage Application -- 3 Experiment Results -- 3.1 PD Characteristics -- 4 Conclusion -- References -- Ultrasound-Based Pressure Pipe Internal Water Ingress Defect Detection Technology -- 1 Introduction -- 2 Model Building -- 2.1 Basic Principle -- 2.2 Model Physics -- 2.3 Parameter Setting and Loading -- 3 Detect Echo Amplitude Characteristics at Different Locations -- 4 Optimal Detection of Ultrasonic Frequencies -- 4.1 Effect of Ultrasonic Frequency on Echo Morphology -- 4.2 The Effect of Ultrasonic Frequency on Echo Amplitude -- 4.3 Selection of the Optimal Ultrasonic Testing Frequency -- 5 Simulation Study of Different Inlet Depths -- 5.1 The Depth of the Water Influent Affects the Echo Time -- 5.2 The Effect of the Depth of the Incoming Water on the Echo Amplitude -- 6 Conclusion -- References -- Optical Storage Emergency Power Supply Technology for Railway Locomotive -- 1 Introduction -- 2 Emergency Power Supply Device System Design -- 3 Booster Circuit Design -- 4 Inverter Circuit Design -- 4.1 Principle of Three-Phase Inverter Circuit -- 4.2 Voltage Vector of Three-Phase Inverter Circuit -- 4.3 Three-Phase Inverter Filter Design -- 5 Simulation and Experimental Waveforms -- 6 Conclusion -- References -- Condition Monitoring Technology for Temperature and Strain Status of Disconnector Based on SAW -- 1 Introduction -- 2 Force-Field Analysis of Disconnector Finger.
3 Design and Development of SAW Sensors -- 4 Testing of Wireless Monitoring System for Disconnector -- 5 Conclusion -- References -- Adsorption of SF6/N2 Decomposed Gas in NaA, MFI and NaZSM-5 Molecular Sieves -- 1 Introduction -- 2 Method of Calculation -- 3 Calculation Results and Analysis -- 3.1 Adsorption Isotherm of SO2, NF3, SO2F2 and CS2 on Molecular Sieve -- 3.2 Adsorption Heat of SO2, NF3, SO2F2, and CS2 on Molecular Sieves -- 4 Conclusion -- References -- Pre-sowing Treatment Using Plasma-Activated Water to Enhance the Germination of Cucumber Seeds Under Salt Stress -- 1 Introduction -- 2 Material and Method -- 2.1 Reactor to Produce PAW -- 2.2 Production of PAW -- 2.3 Characterization of PAW -- 2.4 Seed Germination Statistics and Morphological Indicators -- 3 Results -- 3.1 Electrical Characters Diagnosis -- 3.2 Chemical Composition Detection of PAW -- 3.3 Characterization of Seeds -- 4 Discussion -- 5 Conclusions -- References -- Ultrasonic Image Recognition of Terminal Lead Seal Defects Based on Convolutional Neural Network -- 1 Introduction -- 2 Basic Theory of Convolutional Neural Network -- 2.1 Convolutional Neural Network Structure -- 2.2 Convolutional Neural Training Method -- 3 Lead Seal Defect Recognition Based on Convolutional Neural Network -- 3.1 Image Recognition Process -- 3.2 Lead Seal Defect Detection Platform -- 3.3 CNN Network Model Establishment -- 4 Experimental Result Analysis -- 4.1 A Subsection Sample -- 5 Conclusion -- References -- Temperature Distribution and Influencing Factors of 110 kV Single Core Cable Joint -- 1 Introduction -- 2 Single Core Cable Joint Model -- 2.1 Cable Joint Model Parameters -- 2.2 Governing Equation of Temperature Field -- 2.3 Heat Source Analysis -- 3 Temperature Field Distribution of Single Core Cable Joint -- 4 Influencing Factors of Cable Joint Temperature -- 4.1 Load Current. 4.2 Ambient Temperature -- 5 Conclusion -- References -- Loss Calculation of GIS Disconnect Switches Considering Contact Resistance and Skin Effect -- 1 Introduction -- 2 Model Simplification and Model Assumptions -- 2.1 Model Simplification -- 2.2 Model Assumptions -- 3 Theoretical Analysis -- 3.1 Vortex Field Control Equation -- 3.2 Skinning Effect and Proximity Effect -- 3.3 Boundary Conditions -- 4 Numerical Calculation of Eddy Current Field -- 4.1 Mesh Dissection -- 4.2 Verification of Grid Validity Considering Skinning Depth -- 4.3 Excitation and Boundary Condition Settings -- 4.4 Result Analysis -- 5 Conclusion -- References -- A Novel Virtual Power Plant Model with Ito Integral Considering Random Noise of Renewable Energy -- 1 Introduction -- 2 VPP Continuous Scheduling Optimization Model -- 2.1 Objective Function of VPP -- 2.2 Constraint Conditions of VPP -- 3 Novel Stochastic Differential Model of VPP -- 4 Case Analysis -- 4.1 Input Parameters -- 4.2 Detailed Analysis -- 5 Conclusion -- References -- Research on AlexNet Model-Based Partial Discharge Diagnosis of Cable Terminals -- 1 Introduction -- 2 Cable Partial Discharge Test -- 2.1 Test Methods -- 2.2 Test Results -- 3 Partial Discharge Defect Type Recognition Based on AlexNet Model -- 3.1 Principle of Convolutional Neural Networks -- 3.2 AlexNet Model -- 3.3 Construction of Recognition Network Model -- 4 Analysis of the Recognition Effect -- 5 Conclusion -- References -- Double-Ended Localization Method Based on Joint VMD and WVD Time-Frequency Analysis -- 1 Introduction -- 2 Based on Joint VMD and WVD Time-Frequency Analysis -- 2.1 Shortcomings of Conventional WVD Time-Frequency Analysis -- 2.2 Joint VMD and WVD Time-Frequency Analysis -- 3 Based on Joint VMD and WVD Time-frequency Analysis -- 3.1 Traditional Double-Ended Traveling Wave Method. 3.2 Improved Double-Ended Positioning Combining VMD and WVD -- 4 Analysis of Positioning Effects -- 5 Conclusion -- References -- Particle-In-Cell/Monte Carlo Collisional Simulation of Space Charge Layer Formation and Development in Nitrogen Negative Streamers -- 1 Introduction -- 2 Model Description -- 3 Results and Discussion -- 4 Conclusion -- References -- Research on Switchgear Partial Discharge Signal Type Identification Based on Composite Neural Network -- 1 Introduction -- 2 Theoretical Foundation -- 2.1 BPNN -- 2.2 Whale Optimization Algorithm (WOA) -- 3 Improved Whale Optimization Algorithm (CIWOA) -- 3.1 Cubic Mapping -- 3.2 Adaptive Inertia Weights -- 3.3 Convergence Factor Improvement -- 3.4 Algorithm Process -- 4 Signal Simulation and Feature Extraction -- 4.1 Partial Discharge Signal Establishment -- 4.2 Signal Denoising and Feature Extraction -- 5 CIWOA-BP Partial Discharge Pattern Recognition -- 5.1 Algorithm Performance Test -- 5.2 Comparison of Recognition Results -- 6 Conclusion -- References -- Research on Partial Discharge Noise Reduction Method of Motor Based on SVD-VMD -- 1 Introduction -- 2 Basic Theory -- 2.1 Singular Value Decomposition -- 2.2 Variational Mode Decomposition -- 2.3 Kurtosis -- 3 Simulation Analysis -- 3.1 Simulation PD -- 3.2 Denoising Process -- 3.3 Denoising Analysis -- 3.4 Denoising Contrast -- 4 Conclusion -- References -- Simulation of Seawater Orifice Intrusion of 500 kV Submarine Oil-Filled Cable -- 1 Introduction -- 2 Mathematical Model -- 3 Simulation Model -- 3.1 Geometric Model -- 3.2 Simulation Conditions -- 4 Results and Analysis -- 4.1 Effect of Different Depths on the Length of Seawater Entering the Cable -- 4.2 Effect of Different Locations at the Same Depth on the Length of Seawater Entering the Cable Interior -- 5 Conclusion -- References. 3-D Segmentation and Surface Reconstruction of Gas Insulated Switchgear via PointNet-MLS Architecture -- 1 Introduction -- 2 Raw Point Could Data Acquire and Preprocessing of GIS -- 2.1 GIS Point Cloud Data Set Construction -- 3 Component Segmentation and Surface Reconstruction Framework -- 3.1 PointNET-Based Component Segmentation -- 3.2 MLS-Based Surface Reconstruction -- 4 Results and Discussion -- 4.1 Poind Cloud Segmentation Results -- 4.2 Surface Reconstruction Results -- 5 Conclusion -- References -- Optimization of Electromagnetic Vibration for FSPM Motor by NSGA-II Algorithm -- 1 Introduction -- 2 Radial Electromagnetic Force Analysis -- 2.1 Characteristics of Radial Electromagnetic Force -- 2.2 FEM Simulation of Radial Electromagnetic Force -- 2.3 Harmonic Response Analysis of Radial Electromagnetic Force -- 3 Low Electromagnetic Vibration Optimization Design -- 4 Analysis of Optimization Results -- 5 Conclusion -- References -- Simulation and Analysis of Charge Distribution and Capacitance Effect on Uneven Surface of Dielectric with Leakage Current -- 1 Introduction -- 2 Boundary Value Problem of Dielectric with Leakage Current -- 2.1 Charge Division Between the Two States -- 2.2 Extended Law of Conservation of Charge and Application of Excitation Source -- 2.3 Initial Boundary Value Problem of the Field -- 2.4 The Initial Boundary Value Problem of Potential and the Application of Excitation Source -- 3 Volume Capacitance and Surface Capacitance Characteristics of the Dielectric with Leakage Current -- 4 Simulation of the Charge Distribution and Capacitance Effect on Uneven Surface -- 5 Conclusion -- References -- Thermal Simulation Model of Oil-Immersed Transformer and Analysis of Temperature Rise Characteristics Under Winding Fault -- 1 Introduction -- 2 Simulation Model -- 2.1 Model Parameter -- 2.2 Faulty Module. 2.3 Heat Dissipation Process Analysis and Control Equation. |
| Record Nr. | UNINA-9910806192903321 |
|
Dong Xuzhu
|
||
| Singapore : , : Springer Nature Singapore : , : Imprint : Springer, , 2024 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
The proceedings of the 10th Frontier Academic Forum of Electrical Engineering (FAFEE2022) [[electronic resource] ] : Volume II / / edited by Xuzhu Dong, Qingxin Yang, Weiming Ma
| The proceedings of the 10th Frontier Academic Forum of Electrical Engineering (FAFEE2022) [[electronic resource] ] : Volume II / / edited by Xuzhu Dong, Qingxin Yang, Weiming Ma |
| Autore | Dong Xuzhu |
| Edizione | [1st ed. 2023.] |
| Pubbl/distr/stampa | Singapore : , : Springer Nature Singapore : , : Imprint : Springer, , 2023 |
| Descrizione fisica | 1 online resource (1278 pages) |
| Disciplina | 621.3 |
| Altri autori (Persone) |
YangQingxin
MaWeiming |
| Collana | Lecture Notes in Electrical Engineering |
| Soggetto topico |
Electric power production
Electronics Electronic circuits Signal processing Electrical Power Engineering Electronics and Microelectronics, Instrumentation Electronic Circuits and Systems Signal, Speech and Image Processing |
| ISBN | 981-9934-08-7 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto | Design of dynamic wireless charging system for inspection robot -- A Novel PLL For Auxiliary Supply System in Railway Vehicles -- Line-frequency Instability of Single-Stage PFC Flyback Converter -- Optimal Scheduling of Integrated Microgrids with High Resolution Islanding -- Observation of Positive Streamer Branches in a Long Air Gap -- Experimental Study on the Relationship Between Ablation of Circuit Breaker Electrical Life and Dynamic Resistance -- Research on Multi-target Tracking and Positioning Method in Substation Scene -- Three-dimensional Electric Field Simulation Analysis of Typical Defects in Medium Voltage XLPE Cable Joint -- Adaptive Over-Frequency Response Control for Wind Farm to Participate the System Frequency Regulation -- A Big Data Technology-Based Approach to Power Neural Network Analysis -- Analysis for Research Achievements and Progress Trends of Underwater Electric-Field Coupled Wireless Power Transfer. |
| Record Nr. | UNINA-9910742487103321 |
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Dong Xuzhu
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| Singapore : , : Springer Nature Singapore : , : Imprint : Springer, , 2023 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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