Lecture Notes in Engineering: Conference Proceedings of 2022 2nd International Joint Conference on Energy, Electrical and Power Engineering

Contents Energy Consumption Analysis and Optimization of Comprehensive Energy System in Fishery Park 1 Introduction 1.1 Development Status 2 Analysis of Energy Consumption in Fishery Production 2.1 High Energy Consumption Equipment for Fishery Production 2.2 Heat Pump Model 3 Energy Saving Analysis of Equipment Motor 4 Conclusion References Decision Tree Ensembles for Smart Sewage Treatment: An Intelligent Dosing Model for Removing Phosphorus 1 Introduction 2 Problem Definition 2.1 Training a Phosphorus Removal Prediction Model 2.2 Dosage Suggestion with the Trained Model 3 Intelligent Dosing Model with Decision Tree Ensembles 3.1 Phosphorus Removal Prediction with Decision Tree Ensembles 3.2 Intelligent Dosing Model for Phosphorus Removal 4 Experiments 4.1 Data Preparation and Preprocessing 4.2 Evaluation on the Phosphorus Removal Prediction with Decision Tree Ensembles 4.3 Evaluation on the Chemical Consuming Reduction with the Intelligent Dosing Model 5 Conclusion References Failure Mechanism Analysis on Single Pulse Avalanche for SiC MOSFETs 1 Introduction 2 Single UIS Experiments 3 Failure Mechanism 3.1 Junction Temperature Estimation 3.2 Parasitic BJT Latch-Up 3.3 Metal System Damage 3.4 TCAD Simulation 4 Conclusion References Research on the Scale of Multi-regional Networking to Improve the Interoperability Benefits of Power Systems 1 Introduction 2 Characteristics of Regional Power Grid 2.1 Scale and Characteristics of Electricity Consumption 2.2 Power Supply Structure 2.3 Subject to Electrical Characteristics 3 Benefit of Interconnection 3.1 Installation Substitution Benefits 3.2 Clean Energy Consumption Benefits 3.3 Economic Benefits 3.4 Marketization Benefits 4 Network Scale Measurement Method 5 Network Scale Analysis 6 Conclusion References P2P Optimization Strategy for Integrated Energy Operators Based on Nash Negotiation 1 Introduction 2 Coordination Scheduling Model Considering Multi-agent Game 2.1 The Constraint 3 The Nash Bargaining Model of Multi-agent Cooperative Operation 3.1 Nash Bargaining Model 3.2 Problem Equivalent Conversion 4 Example Analysis 5 Conclusion References Three Phase O-Z-Source Inverter 1 Introduction 2 Analysis and Modeling of O-Z-Source Inverter 2.1 Steady-State Model 3 Experiment Results 3.1 Experimental Analysis 4 Conclusion References Recognition of Tunneling Boring Machine Operating Status Based on the Time Series Analysis 1 Introduction 2 Methodology 2.1 Time Series Segmentation 2.2 Feature Extraction and Selection of Time Series 2.3 Recognition of TBM Operating Status 3 Experiments 3.1 Experiment Setting 3.2 Results and Analysis 4 Conclusion References Flow Pulsation Optimization of Peristaltic Pump Based on Surrogate Model 1 Introduction 2 Peristaltic Pump 3 Digital Model 4 Surrogate Modeling 4.1 Experiment Design 4.2 Surrogate Model Comparison 4.3 Basic Theory of RSM Surrogate Model 5 Design Optimization 5.1 Optimization Equation 5.2 Optimization Algorithm and Results 5.3 Validation of Results 6 Conclusions References Dispatch Strategy for Transmission Overload Based on Safe Reinforcement Learning 1 Introduction 2 Problem Formulation 2.1 MDP Modelling 2.2 Power System Constraints 3 Methodology 4 Case Study 4.1 Test Case Preparation 4.2 Performance Validation 5 Conclusion References Research on Power Source Schemes in High Proportion of Renewable Energy HVDC System 1 Introduction 2 Basic Research Ideas 3 Evaluation Index System of Power Source Scheme 4 Ningxia Case 4.1 DC Sending End Power Source Scheme Design 4.2 Demonstration of Power Source Scheme 5 Conclusion References Experimental Study on the Influence of Voltage Sag Characteristic Parameters on the Dynamic Performance of SSTS 1 Introduction 2 Structure and Performance Indexes of SSTS 2.1 Working Principle of SSTS 2.2 Voltage Sag Detection 2.3 SSTS Switching Dynamic Characteristic Indexes 3 Experiment Design 3.1 Experiment Platform 3.2 Purpose and Procedure 3.3 Parameters Setting 4 Results and Analysis 4.1 Influence of Sag Magnitude on SSTS Switching Dynamic Performance 4.2 Influence of Sag Duration on SSTS Switching Dynamic Performance 4.3 Influence of Sag Initial Phase Angle on SSTS Switching Dynamic Performance 4.4 Influence of Sag Change Rate on SSTS Switching Dynamic Performance 5 Conclusion References Non-invasive Measurement Method for DC-Side Energy Storage Capacitance of Single-Phase Bridge Uncontrolled Rectifiers 1 Introduction 2 The Working Principle of the Single-Phase Bridge Uncontrolled Rectifier 2.1 Filtering Principle 2.2 Output Voltage Calculation 3 The Calculation Model of DC-Side Energy Storage Capacitance 4 Simulation Analysis 4.1 Simulation Parameter Setting 4.2 Output Voltage Simulation Analysis 4.3 Simulation Analysis of DC-Side Energy Storage Capacitance 5 Conclusion References Application of Generalized Predictive Control in Buck Converter 1 Buck Controller Design Ideas 2 Generalized Prediction PID Control Strategy 2.1 PID Control 2.2 Generalized Predictive PID Control 3 Verification by Experiment 3.1 Experimental Results References Sliding Mode Control of PMSM Based on Double Power Reaching Law 1 Introduction 2 Double Power Approach Law 3 Sliding Mode Controller Design 4 The Simulation Verification 5 Conclusion References Distinguishment of Power Quality Disturbances Using Segmented Adaptive S Transform 1 Background 2 Segmented Adaptive S Transform 2.1 S Transform 2.2 Adaptive S Transform Strategy 2.3 Segmented S Transform Strategy 3 Case Study 4 Conclusion References Robust Predictive Rotor Current Control of DFIGs Based on an Adaptive Ultra-local Model 1 Introduction 2 Dynamic Mathematical Model of the DFIG 3 Proposed Robust Predictive Rotor Current Control 3.1 Rotor Current Reference Value Acquisition 3.2 Ultra-local Model Updating and Delay Compensation 3.3 Calculation of Required Rotor Voltage 4 Simulation Verification 5 Conclusion References Multi-region V2G Optimal Scheduling Strategy Based on Region Division 1 Introduction 2 EV Travel Chain Model 2.1 Trip Probability Function 2.2 Daily Travel Chain Structure 2.3 The Related Model of EVs Models 3 Multi-region Optimal Scheduling Strategy 3.1 Objective Function 3.2 Constraint Condition 3.3 Multi-objective Optimization Model 3.4 Scheduling Strategy 4 Example Analysis 4.1 Example Description 4.2 Example Solution 4.3 Result Analysis 5 Conclusion References Maximum Power Point Tracking Control of Wind Power Generation System Without Inductance Decoupling 1 Introduction 2 Maximum Power Point Tracking 3 LADRC Controller 4 Inner Current Loop Control 5 Simulation Results 6 Conclusion References A Cluster-Based Dynamic Grouping Population Replication Strategy for Bilevel Multi-objective Optimization 1 Introduction 2 The Proposed Algorithm 3 Experiment Results 3.1 The Experimental Setups 3.2 The Comparisons with Other Approaches 4 Conclusion References Study on Multi-objective Scheduling Strategy for Electric Vehicle to Absorb Wind Power Considering Dynamic Time-of-Use Price 1 Introduction 2 Time Division of the DTOU Price 3 Dispatching Strategy Considering the DTOU Price 4 Multi Objective Optimal Scheduling Model 4.1 Objective Function 4.2 Binding Conditions 5 Example Analysis 5.1 Data Description 5.2 Results and Analysis 6 Conclusion References Thermal Effect Analysis of Three-Level Inverter Power Module Based on Single Cycle Loss Calculation 1 Introduction 2 Electro-Thermal Model of Inverter 2.1 Power Module Loss Model 2.2 Thermal Model of Inverter 3 Electro-Thermal Analysis of the Power Module 3.1 Loss Calculation 3.2 Junction Temperature Analysis 4 Thermal Simulation and Experiment 5 Single Cycle Heat Equalization 6 Conclusion References Secondary Authentication Method Suitable for 5G-Based Power Terminals and Formal Analysis 1 Introduction 2 Secondary Authentication Scheme 3 Formal Analysis 3.1 Protocol Description 3.2 Formal Model 3.3 Analysis of Results 4 Conclusion References Research on Multi-scale Space-Time Planning and Allocation Method of Energy Storage System Under New Energy Structure 1 Introduction 2 The Planning Model of the Energy Storage System 3 A Double-Layer Optimization Model Based on Improved Adaptive Genetic Algorithm 4 Example Analysis 4.1 Example Validation Based on IEEE-33 Node Distribution Network 5 Summary References FPGA-Based Servo Control for a Dual Three-Phase Permanent Magnet Synchronous Motor 1 Introduction 2 Mathematical Models of the Dual Three-Phase PMSM 3 Servo Control Design with Three Closed Loops 4 FPGA Implementation 5 Experimental Verifications 6 Conclusions References Measurement and Control System of Planetary Roller Screw Transmission Efficiency Test Bench Based on LabVIEW 1 Introduction 2 Transmission Efficiency Measurement Method 3 Structure of Test Bench and the Measurement and Control System 4 Software Design of Measurement Control System 5 Test Results 6 Conclusion References Improved Damping Ratio Control of Virtual Synchronous Generators with Multiple Parameter Coordination 1 Introduction 2 Multi-parameter Cooperative Adaptive Control of VSG 2.1 The System is Affected by VSG Parameters 2.2 Cooperative Adaptive Selection Strategy of Controlling Parameters 3 Simulation Analysis 4 Conclusion References Hybrid Time Step Day-Ahead Optimal Scheduling of the PV-Cascade Hydro Complementary Power Plant Based on PV Output Forecast 1 Introduction 2 LSTM Forecasting Model 3 Introduction 4 Mathematical Model for Optimal Scheduling of Cascade Water-Light System 4.1 Objective Function 4.2 The Constraint 4.3 Model Solving Method 5 A Case Study 5.1 Data 5.2 Forecast Results 5.3 Scheduling Result 6 Conclusion References GRU Network-Based Load Allocation for Hydro Units 1 Introduction 2 The Basic Theory of GRU Neural Networks 2.1 Gated Circulation Units 3 Unit Load Allocation Model Based on GRU Networks 3.1 Model Evaluation Indicators 4 Application Examples 4.1 Data Clustering Results 4.2 Parameter Setting and Training Process 4.3 GRU Model Load Allocation Results 5 Conclusions References A Novel Multi-fidelity Surrogate Model with Two-Stage Ensemble 1 Introduction 2 Methodology 2.1 Stage 1: Construction of MFS Model Library 2.2 Stage 2: Ensemble of MFS Models 3 Numerical Examples 3.1 The Investigation for the Parameter α 3.2 The Performance Analysis of the TSE-MFS Model 4 Conclusion Appendix A: 20 Test Functions References A Fault Diagnosis Method for Molecular Pump Based on Dictionary Learning 1 Introduction 2 Methodology 3 Molecular Pump Fault Diagnosis Method 3.1 Signal Sparse Representation Based on DCT Denoise 3.2 Signal Sparse Representation Based on DCT Denoise 4 Results and Discussion 4.1 Vacuum Leakage Experimental Test 4.2 Compassion of Proposed Method and Traditional Method 5 Conclusion References Development of Comprehensive Training Platform for Power Electronics Teaching in Smart Grid and Renewable Energy 1 Introduction 2 Development of the Experimental Platform 2.1 Power Circuit Module 2.2 Circuit Control Module 2.3 Software Design 3 Teaching Experiment Platform Applications 3.1 Platform Construction 3.2 Teaching Experiment 4 Conclusion References Rotor Position Deviation Active Control of High Speed Magnetic Levitation Permanent Magnet Motor 1 Introduction 2 Control Strategy 3 Simulation 4 Experiment References Research on Risk Prevention and Control of Distribution Network Based on Knowledge Graphs 1 Introduction 2 Construction of Knowledge Graphs for Risk Prevention and Control of Distribution Network 2.1 Knowledge Graphs Construction Process 2.2 Basic Data and Graph Types 2.3 Knowledge Graph Construction Technology 3 Risk Prevention and Control Process of Distribution Network Based on Knowledge Graph 4 Application of Knowledge Graph for Risk Prevention and Control of Distribution Network 4.1 Incorporate Risk Control to the Auxiliary Decision-Making Knowledge Graph Application 4.2 Application Case 5 Conclusion References sDFT Based IRP Detection of the Electrical Excited Synchronous Machine 1 Introduction 2 Rotor Position Angle Detection Principle 3 Principles of sDFT 4 Detection Method Based on sDFT 5 Experiment Results 6 Conclusion References A Unified Startup Control Strategy for Modular Multilevel Converter with the Supercapacitor Energy Storage System 1 Introduction 2 Basic Analysis of the MMC-SCESS 3 The Precharge Strategy of the MMC-SCESS 3.1 Uncontrollable Precharge Stage of MMC-SCESS 3.2 Closed-Loop Precharge Stage of the MMC-SCESS 3.3 Precharge Method of the MMC-SCESS Supercapacitor 4 Simulation and Analysis of Precharge Strategy 5 Conclusion References Coordinated Operation for Honeycomb Active Distribution Network with Multi-microgrids 1 Introduction 2 Problem Formulation 2.1 Structure of HADN 2.2 Operation Model of Microgrids 2.3 Operation Model of Distribution Network 2.4 Collaborative Operation Model of HADN 3 Solution Algorithm 3.1 ADMM with RF Heuristics-Based Model 3.2 Solution Process 4 Numerical Results 5 Conclusion References Primary Frequency Modulation Control of Doubly-Fed Wind Turbine Based on Optimal Coordination of Pitch and Energy Storage 1 Introduction 2 Energy Storage and Pitch Angle Coordination Modes 2.1 Standby Energy Storage Cooperative Mode of Pitch Angle Load Reduction 2.2 Limited Power Energy Storage Collaborative Mode 3 Limited Power Mode in Minimum Wind Power 4 Seek the Optimal Limited Power Mode 5 Conclusion References Analysis of Harmonic Characteristics of Magnetic Controllable Transformer 1 Introduction 2 Harmonic Generation Mechanism 3 Principle Calculating Harmonic Content of Primary Current by FFT 4 Simulation Model and Parameters 5 Conclusion References Investigation of Pumped Storage Power Station Construction Conditions in Guangdong Province 1 Research Background 2 Investigation Principles 2.1 Compliance with Environmental, Ecological, Water Source, Cultural Heritage and Other Protection Requirements 2.2 Close to Electricity Load Centers 2.3 Decentralized Layout 2.4 Good Access System Conditions 2.5 Facilitating Multi-energy Complementarity and the Consumption of New Energy [8, 12–15] 2.6 Taking into Account the Needs of Economic Development in Both Eastern and Western Areas 2.7 Excellent Construction Conditions of the Site [9] 3 Investigation 3.1 Service Objects 3.2 Site Conditions 3.3 External Environment 3.4 Economy 4 Conclusion References Integrated Charger Topology and Control Strategy with Single-Phase and Three-Phase Charing Functions for Electric Vehicle 1 Introduction 2 Charger Topology 3 Control Strategy 3.1 Control Strategy for the Front-End AC–DC Converter 3.2 Control Strategy for the Back-End DC–DC Converter 4 Experimental Verification 4.1 Three-Phase Charging Mode 4.2 Single-Phase Charging Mode 5 Conclusion References Research on Short-Circuit Fault of High-Speed Maglev Traction Linear Motor 1 Introduction 2 Dynamic Mathematical Model 2.1 Motor Equivalent Model and Parameters 2.2 Armature WindingShort-Circuit Current 2.3 Excitation Short Circuit Current 3 Short Circuit Simulation Verification 4 Conclusion References A Designable Stability-Improving Control Method Based on Eigenvalue Sensitivity for Three-Phase Grid-Following Converter 1 Introduction 2 Small-Signal Model of Three-Phase Grid-Following Converter Considering the Nonlinear Characteristic of PLL 3 Designable Stability-Improving Method Based on Eigenvalue Sensitivity 3.1 Eigenvalue Sensitivity 3.2 Basic Idea of Stability-Improving Control Method Based on Eigenvalue Sensitivity 3.3 The Additional Inverter-Side d-Axis Inductor Current Feedback Control Derived by Eigenvalue Sensitivity 4 Simulation Verification of the Derived Stability-Improving Control Strategy 4.1 Simulation Verification 4.2 The Stability-Improving Effect of AIdCF Control in the Grid-Following Converter 5 Conclusion Appendix References An Intuitionistic Time-Domain Stability Analysis Method Based on Floquet Theory for Three-Phase Grid-Following Converter 1 Introduction 2 Time-Domain Model and Stability Analysis of TGFC 2.1 The Topology of the TGFC 2.2 Time-Domain Model of the GFC 3 Time-Domain Stability Analysis 4 Simulation Verification 5 Conclusion Appendix References Locational Marginal Price Model Considering Customer Directrix Load 1 Introduction 2 Customer Directrix Load Line 3 Locational Marginal Price 4 Case Analysis 5 Conclusion References Analysis of the Steady State Fluid Force and Flux of Nuclear Pressure Safety Valves Based on Surrogate Models 1 Introduction 1.1 A Subsection Sample 2 Pressure Safety Valves 3 Numerical Methods 4 Building Surrogate Nodel 4.1 Design of Experiments 4.2 Comparison of Surrogate Model 5 Validation of the Surrogate Model 6 Analysis of Parameter Sensitivity 7 Conclusions References Study on Mathematical Model and Dynamic Compensation of Oil Down-Hole Pressure Sensor Based on BP Neural Network 1 Introduction 2 Analysis of the Influence of the Specialized Buffer Device on the Dynamic Characteristics of the Pressure Sensor 3 Modeling and Compensation Method Based on Neural Network 4 Modeling and Compensation Practice of the Typical Pressure Sensor Based on BP Neural Network 5 Conclusion References Model Predictive Current Control of Three-Phase Voltage Source Rectifier Based on Optimal Space Trajectory 1 Introduction 2 Traditional Model Prediction Algorithm 3 Proposed OST-MPC Control Algorithm 3.1 Gradient Calculation of Switching Sequence 3.2 Calculation of Vector Action Time 3.3 Duty Cycle Calculation 4 Simulation Result 4.1 Steady State Performance Comparison 4.2 Dynamic Performance Comparison 5 Conclusion References A Novel Current-Limiting Hybrid DC Circuit Breaker 1 Introduction 2 Topology and Theoretical Analysis of the Proposed HCB 3 Simulation Verifications 4 Conclusion References Study on Motor Parameters of PMSM Based on the Principle of Adjustable Leakage Flux 1 Introduction 2 Motor Structure and Flux Weakening Principle 3 Analysis of the Influence of the Motor Parameters on the Electromagnetic Torque Ripple 3.1 The Influence of Air Gap and Current on Electromagnetic Torque Ripple 3.2 The Influence of Magnetic Conductor on Electromagnetic Torque Ripple 3.3 The Influence of Permanent Magnet on Electromagnetic Torque Ripple 3.4 The Influence of Coil Turns on Electromagnetic Torque Ripple 4 Torque-Speed Performance 5 Conclusion References The Coordination of FCL and Relay Protection: A Review 1 Introduction 2 Working Principle of FCL 3 Influence of FCL on Relay Protection 3.1 Distance Protection 3.2 Current Protection 3.3 Longitudinal Differential Protection 4 Coordination of FCL and Relay Protection 4.1 Distance Protection 4.2 Current Protection 4.3 Differential Protection 5 Conclusion References Research on Three-Phase Unbalance Compensation of Magnetic Control Transformer 1 Introduction 2 Principle of Magnetic Control Transformer and Balancing Compensation Principle 2.1 Principle of Magnetic Control Transformer 2.2 Balancing Compensation Principle 2.3 Simulation Analysis 3 Conclusion References Automatic Protective Relay Testing on Real Time Simulator 1 Introduction 2 Preparation of Automatic Testing on RTDS 3 Runtime Script Record/Playback Feature 4 An Application Example of Script Run in Relay Testing 5 Conclusion References Research on Harmonic Optimization of Magnetically Controlled Transformer 1 Introduction 2 Harmonic Optimization Based on Multistage Magnetic Valve Structure 2.1 Harmonic Problems of a New Type of Magnetically Controlled Reactance Transformer 2.2 Harmonic Mathematical Model 2.3 Harmonic Mathematical Model 2.4 Optimized Results 2.5 Mulation Experiment of Magnetically Controlled Transformer with Multi-stage Magnetic Valve Structure 3 Conclusion References Grasping Operation of Irregular-Shaped Objects Based on a Monocular Camera 1 Introduction 2 Methods of Image Processing 2.1 Image Segmentation and Contour Detection 2.2 Calculation of Rotation Angle 3 Experiments 4 Conclusions References Design and Development of an Unmanned Excavator System for Autonomous Mining 1 Introduction 2 Unmanned Excavator System (UES) 2.1 Autonomous Excavation Process 2.2 Overall Framework of UES 3 Numerical Experiments 3.1 The Experimental Equipment 3.2 Autonomous Digging 4 Conclusion References Research on the Switching Frequency Variation of Predictive Control Based on Circular Boundary-Limited Form 1 Introduction 2 Boundary Circle Confined Model Predictive Current Control 2.1 Voltage Vector Switching Trigger Mechanism 2.2 Optimal Voltage Vector Selection Strategy 3 Mechanism of Motor Speed Affecting Switching Frequency 4 Simulation Results 4.1 Results of MPC Simulation 4.2 Switching Frequency Variation at Different Speed 5 Conclusion References Electric Power Balance Contribution Calculation Based on Power Traceability 1 Introduction 2 Power Traceability Principle of Radiation Distribution Network 2.1 Proportional Sharing Principle (PSP) 2.2 Power Traceability of a Single Line 3 Electric Power Balance Contribution Calculation 3.1 Electric Power Balance Indices 3.2 Index Contribution Calculation Method 4 Case Study 4.1 Introduction of Basic Situation 4.2 Result and Discussion of Index SAF 4.3 Result and Discussion of Index VOF 5 Conclusion References Distributionally Robust Self-scheduling of Small-Scale Virtual Power Plants Considering Seasonal Variations 1 Introduction 2 Framework of the SVPP Self-scheduling Model 3 Framework of the SVPP Self-scheduling Model 3.1 Deterministic Self-scheduling Formulation for SVPP 3.2 Seasonal Variation-Based Ambiguity Set Description 3.3 The SDR Optimization with the Worst-Case Distribution 4 Case Study 5 Conclusion References Model-Free Predictive Control Strategy for PMSM Drives Based on Recursive Extended Least Square 1 Introduction 2 Conventional PCC Strategy 3 Modeling and Estimation for CAR 3.1 Modeling Process 3.2 Modeling Process 4 Validations 4.1 Tracking Performances 4.2 Robustness Verify 4.3 Performances with Different Orders 5 Conclusions References Power Optimization Control with Tracking Differentiator for Interior Permanent-Magnet Synchronous Motor 1 Introduction 2 Preliminary 2.1 Loss Model 2.2 MTPA Principle 2.3 LMC Principle 3 Proposed Power Optimization Control 3.1 Adaptive MPTA Principle 3.2 Adaptive LMC Principle 4 Results and Discussion 5 Conclusion References Full Life Cycle Prediction of Nuclear Bearings Based on Digital Twin Hybrid Model 1 Introduction 2 Method 2.1 Digital Twin 2.2 Artificial Intelligence Methods 3 Experiments 3.1 Data Processing 3.2 Deep Learning Methods 4 Conclusion References Simulation of Position Impedance Control for Single Leg of Electric Drive Legged Robot 1 Introduction 2 Single Leg Structure and Kinematic Modeling 2.1 Single Leg Structure 2.2 Kinematic Modeling 3 Simulation Analysis of Control Strategy 3.1 PID Closed-Loop Control Based on Single Joint 3.2 Position Impedance Control Based on Cartesian 4 Conclusion References Research on Distribution Transformer Quality Sampling Assessment Model Based on Entropy Weight Method 1 Introduction 2 Quality Sampling Test Data 3 EWM Analysis and Results 3.1 EWM Method Principle 3.2 Quality Sampling Assessment Model of Distribution Transformer 4 Conclusion References A Novel DC Energy Dissipation Topology and Control Method 1 Introduction 2 Proposed Concentrated Energy Dissipation Arm 3 Simulation Verifications 4 Conclusion References A Dual Inverter Topology Based on Quasi-Isolated Power Supply and Its Control Strategy 1 Introduction 2 The Proposed Topology and Its Mathematical Model 3 Control Strategy 3.1 Modulation Method 3.2 System Control Block Diagram 4 Simulation Verification 4.1 Simulation Parameters 4.2 Simulation Results and Analysis 5 Conclusion References The LCL Type Three-Phase Grid-Connected Inverter Active Damping Design Based on Capacitor Current Feedback 1 Introduction 2 Active Damping of Three-Phase LCL Filter 2.1 A Mathematical Model of the LCL Three-Phase Grid-Connected Inverter 2.2 Design of Capacitance Current Feedback Coefficient 3 Design Example 4 Conclusion References Peer-to-Peer Trading Among Prosumers Based on Cooperative Game 1 Introduction 2 A Cooperative Game-Based P2P Trading Model for Prosumers 2.1 Model 2.2 Shapley Value-Based Benefit Allocation Strategy 3 ADMM-Based Distribution Scheduling for Prosumers 4 Example Analysis 4.1 Model Parameters 4.2 Result Analysis 5 Conclusion References Second-Order Cone Based Dynamic Reconfiguration of Distribution Networks 1 Introduction 2 Distribution Network Reconfiguration Model 3 Second Order Cone Programming Model 4 Case Simulation 5 Conclusion References Research on Energy System Planning Method Considering Carbon Trading 1 Introduction 2 Planning Model 2.1 Objective Function 2.2 Models and Constraints 3 Case Study 3.1 Capacity and Economy Analysis 3.2 Environment Benefit Analysis 3.3 Sensitivity Analysis 4 Conclusion References Research on Influence of Buried Sand on Cable Temperature Rise Characteristics in Tunnel 1 Introduction 2 Model Building 2.1 Basic Assumptions When Building the Model 2.2 Model Parameter Settings 2.3 Heat Loss 3 Influence of Buried Sand on Temperature Rise Characteristics of Cables 4 The Influence of Other Conditions on the Temperature Rise Characteristics of the Cable 5 In Conclusion References A Innovative Three-Phase Unbalanced Compensation Range Evaluation for the Combination D-STATCOM 1 Introduction 2 Principle of the Combination STATCOM 2.1 Circuit Topology 2.2 Three-Phase Unbalanced Compensation Range Evaluation 3 Analysis and Control 4 Evaluation of Operating Range 5 Simulated Results 6 Conclusion References Parameter Optimization of the Three-Coil Wireless Power Transmission System Based on Genetic Algorithm 1 Introduction 2 Three-Coil System Model Analysis 3 The Implementation of the Genetic Algorithm 4 The Simulation and Experimental Verification 5 Conclusion References Analysis of Abnormal Working Conditions Influence Over a Self-switching LCC-LCC/S-Based WPT System with CC and CV 1 Introduction 2 Analysis of the Working Principle and Characteristics of Hybrid Topology 3 Analysis of the and Characteristics of Hybrid Topology 4 Simulation and Experiment 5 Conclusion References Design of Wide Voltage Range DC–DC Converter Based on SiC MOSFET 1 Introduction 2 Topology of DC–DC Converter 2.1 BOOST Converter 2.2 LLC Converter 3 Design for DC–DC Converter 3.1 BOOST Converter 3.2 LLC Converter 4 Experimental Verification 5 Conclusion References Study on Oscillation Characteristic Test and Data Fitting of DC Transfer Switch 1 Introduction 2 Oscillation Circuit Analysis 2.1 Equivalent Circuit 2.2 Test Error Analysis 3 Test Experiments 4 Data Fitting Method 5 Conclusion References Rolling Bearing Fault Diagnosis Method Based on Attention Mechanism Stacking 1 Introduction 2 Continuous Wavelet Transform 3 Attention Mechanisms Stacking Network 3.1 Convolutional Layer 3.2 Pooling Layer 3.3 Attention Mechanism 3.4 Inception Module 3.5 Optimizer 3.6 Overall Model Structure 4 Experimental Results and Analysis 4.1 Experimental Data 4.2 Experimental Results 5 Result References Optimal Design of Torque Ripple of External Rotor Permanent Magnet Synchronous Motor Based on Particle Swarm Optimization 1 Introduction 2 PMSM Analysis 3 Finite Element Simulation 4 Optimization of Motor Structure Parameters Based on Particle Swarm Optimization 5 Joint Simulation Results and Analysis 6 Conclusion References Study on Inertia-Resistant Disturbance Speed Control of Permanent Magnet Synchronous Motor Based on Exponential Integral Time-Varying Sliding Mode 1 Introduction 2 PMSM Mathematical Model 3 Inertia Identification 4 EITSMC Design 5 Simulation Verification 6 Conclusion References Torque Ripple Reduction of Permanent Magnet Synchronous Motor Based on Least Mean Square Algorithm 1 Introduction 2 PMSM Harmonic Analysis 3 LMS Filtering Algorithm 4 Design of Harmonic Suppressor Based on d-q Axis LMS Algorithm 5 Experimental Verification 6 Conclusion References Research on Multi-operating Control Strategy of Vehicle Motor Based on ALO 1 Introduction 2 Motor Voltage Equation 3 Ant Lion Algorithm 3.1 Algorithmic Principles 3.2 Basic Idea of Controller 4 Simulative Validation 5 Conclusion References Correction Method for Harmonic Measurement of Capacitor Voltage Transformer Based on Frequency Response Characteristics 1 Introduction 2 Experimental Test of Frequency Response of CVT 2.1 High Voltage Experimental Test Platform 2.2 Experimental Test Results 3 Key Parameter Identification 3.1 Impedance Model and Frequency Response Analysis of CVT 3.2 Key Parameter Optimal Identification 4 Parameter Identification Results and Correction 5 Conclusion References Design of Aviation AC/DC Contactor Life Test System Based on PXI-2204 and CPCI-7434 1 Introduction 2 Hardware Design 2.1 Main Circuit 2.2 Acquisition and Conditioning Circuit 2.3 Drive Circuit 2.4 Power Supply Circuit 3 Software Design 4 Experiment Platform and Results 5 Conclusion References MTPA Control Strategy of BLDCM Based on Back-EMF Orientation 1 Introduction 2 Selection of Conduction Mode Under MTPA Control 3 Difficulties of Traditional Transformation in MTPA 4 MTPA Control Strategy Based on Back-EMF Orientation 5 Experimental Verification 6 Conclusion References Torque Ripple Suppression Based on a New Multi-level DTC Strategy 1 Introduction 2 Multi-level DTC System 2.1 DTC System 2.2 Four-Level DTC During Non-commutation 2.3 Six-Level DTC During Commutation 3 System Simulation and Experimental Verification 4 Conclusion References Study of an IPT System Based on Configurable Charging Current and Charging Voltage 1 Quotes 2 A Constant-Current, Constant-Voltage, Self-switching IPT System with Configurable Charging Current and Charging Voltage 2.1 Analysis of the Constant Current Mode with Configurable Charging Current 2.2 Analysis of the Constant Voltage Mode with Configurable Charging Voltage 3 Parameter Settings 4 Simulation Validation 4.1 Simulation Analysis of a Constant Current and Constant Voltage IPT System with Configurable Charging Current 4.2 Simulation Analysis of a Constant-Current, Co