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
• Pubblicazione: Singapore : , : Springer Nature Singapore : , : Imprint : Springer, , 2024
• Edizione: 1st ed. 2024.
• Descrizione fisica: 1 online resource (871 pages)
• Disciplina: 621.3
• 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
• Altri autori: LiZewen LuoAn
• 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.
• Sommario/riassunto: This book gathers outstanding papers presented at the 18th Annual Conference of China Electrotechnical Society, organized by China Electrotechnical Society (CES), held in Nanchang, China, from September 15 to 17, 2023. It covers topics such as electrical technology, power systems, electromagnetic emission technology, and electrical equipment. It introduces the innovative solutions that combine ideas from multiple disciplines. The book is very much helpful and useful for the researchers, engineers, practitioners, research students, and interested readers.
• Titolo autorizzato: The proceedings of the 18th Annual Conference of China Electrotechnical Society
• ISBN: 981-9710-64-2
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Lingua di pubblicazione: Inglese
• Record Nr.: 9910842489603321
• Lo trovi qui: Univ. Federico II
• Serie: Lecture Notes in Electrical Engineering, . 1876-1119 ; ; 1167