The Proceedings of 2023 4th International Symposium on Insulation and Discharge Computation for Power Equipment (IDCOMPU2023): Volume IV (Lecture Notes in Electrical Engineering, 1103)

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
	1 Introduction
	2 Simulation Model of RIP Bushing Electric Heating Field
	3 Calculation Method of RIP Electric Heating Field
		3.1 Theoretical Analysis of Electric Field Calculation
		3.2 Theoretical Analysis of Thermal Field Calculation
	4 Electric Field Distribution Result
		4.1 Temperature Field Distribution
		4.2 Temperature Field Distribution Under Different Load Capacity
	5 Conclusion
	References
Simulation Analysis of Mechanical Properties of Grafted Polypropylene Cable
	1 Introduction
	2 ABAQUS Analysis Model
		2.1 Cable Simulation Model
		2.2 Mechanical Parameters of Materials
	3 Finite Element Simulation and Analysis
		3.1 Analysis of Strain Results
		3.2 Analysis of Stress Results
	4 Conclusion
	References
Analysis on Surge Characteristics and Protection for Wind Turbines Based on ATP-EMTP Simulation
	1 Introduction
	2 Wind Turbine and Surge Model
		2.1 Wind Turbine Model
		2.2 Surge Model
		2.3 Mathematical Model of Surge Protective Device (SPD)
	3 Surge Characteristics of Wind Turbines When Lightning Strikes
		3.1 Surge Characteristics Without SPD
		3.2 Surge Characteristics of Installed SPD
		3.3 SPD Performance Under Repeated Transient Overvoltage
	4 Conclusions and Recommendations
	References
Study on the Influence of Crosslinking By-Products on XLPE Breakdown Performance in XLPE Cables Based on the First-Principles and Band Gap Theory
	1 Introduction
	2 Calculation Model and Method
	3 Result in Analysis and Discussion
	4 Conclusion
	References
Simulation Study on the Motion of Dust Particles in Traveling Wave Electric Curtain Photovoltaic Panel
	1 Introduction
	2 Traveling Wave Electric Curtain Model
		2.1 The Traveling Wave Electric Curtain Studied
		2.2 Three-Phase Traveling Wave Electric Curtain Electric Field Distribution
		2.3 Differential Equation of Motion of Dust Particles
	3 Simulation Analysis of Dust Particle Motion in Traveling Wave Electric Curtain
		3.1 Effect of Voltage on Particle Movement
		3.2 The Effect of Particle Diameter Diameter on Particle Motion
		3.3 Effect of Initial Position on the Trajectory of Single Particle Motion
		3.4 Effect of Frequency on the Trajectory of Single Particle Motion
	4 Conclusion
	References
Study on the Influence of Wildfire on Streamer Discharge in Transmission Line Gap
	1 Introduction
	2 Simulation Model
		2.1 Physical Model
		2.2 Chemical Reaction Models
		2.3 Boundary Condition Setting
	3 Analysis and Discussion of Simulation Results
		3.1 Effect of High Flame Temperatures on Flow Injection Discharge
		3.2 Effect of CO2 Molar Fraction Flow Injection Discharge
		3.3 Effect of Combined High Temperature and CO2 Concentration on Flow Injection Discharge
	4 Conclusion
	References
Influence of AC Voltage Frequency on Partial Discharge of Oil-Pressboard Insulation and Its Mechanism
	1 Introduction
	2 Experimental Platform
	3 Partial Discharge Characteristics Under Different Frequency Harmonic Voltages
	4 Discussion
	5 Conclusion
	References
Study of Electrical Characteristics of Epoxy Resin Under Different Environmental Conditions of Condensation
	1 Introduction
	2 Test Method and Procedure
		2.1 Experimental Sample Production
		2.2 Condensation Environment Simulation
		2.3 Experimental Platform Construction
	3 Results Analyse
		3.1 Volume and Surface Resistivity Test Results
		3.2 Effect of Different Environmental Factors on Epoxy Resin Leakage Current
		3.3 Condensation Discharge Test for Different Time of Hygrothermal Aging Samples
	4 Conclusion
	References
Transformer Health Condition Assessment Method Based on Full Life Cycle Data
	1 Introduction
	2 Health Assessment Indicator System
		2.1 Assessment Indicator System Establishment
		2.2 Quantification of Assessment Indicators
	3 Multi-level Fuzzy Integrated Evaluation Method
		3.1 Multi-level Fuzzy Evaluation Model Development
		3.2 Weighting and Correction
		3.3 Fuzzy Calculation and Health Indice
		3.4 Assessment of Indicator Affiliation Functions
		3.5 Transformer Health Status Assessment Framework
	4 Case Studies
	5 Conclusion
	References
Effect of Positive Temperature Coefficient Materials on the AC Breakdown Strength and Dielectric Properties of Epoxy Composites
	1 Introduction
	2 Experimental
		2.1 Experimental Materials and Preparation
		2.2 Characterization
	3 Results and Discussion
		3.1 AC Breakdown Characteristics
		3.2 Dielectric Properties
		3.3 Effect of Polydopamine Coating
	4 Conclusion
	References
Stage Recognition of Surface Discharge in Oil-Impregnated Paper Based on Convolutional Neural Network
	1 Introduction
	2 Experiment
		2.1 Sample Preparation
		2.2 Defect Simulation
		2.3 Construction of Partial Discharge Experimental Platform
		2.4 PRPD Pattern
	3 Pattern Recognition
		3.1 Model Building
		3.2 Network Training
		3.3 Recognition Accuracy Comparison
	4 Conclusion
	References
Dynamic Behavior of Suspended Bubbles in Insulating Oil Correlation with Flow Field Distribution
	1 Introduction
	2 Simulation Model Construction of Dynamic Behavior of Suspended Bubbles in Oil
		2.1 Controlling Equations for the Dynamic Behavior of Suspended Bubbles
		2.2 Geometric Model and Simulation Parameters Setting
	3 Simulation Results and Analysis Discussion
	4 Conclusion
	References
Study on the External Insulation Characteristics of Epoxy Resin After Corona Aging Under Hygrothermal Coupling Effect
	1 Introduction
	2 Test Method and Procedure
		2.1 Preparation of Sample
		2.2 Test Platform Construction
		2.3 Test Procedure
	3 Testing Measure
		3.1 Flash-Over Voltage Test Procedure
		3.2 Leakage Current Test Procedure
	4 Results Analyse
		4.1 Influence of Temperature and Humidity on Leakage Current of Epoxy Resin Corona Aging
		4.2 Influence of Temperature and Humidity on Flash-Over Voltage of Epoxy Resin Corona Aging
	5 Conclusion
	References
Design and Optimization of 6.5 kV SiC MOSFET Device Termination
	1 Introduction
	2 Design of SiC MOSFET Device Termination
		2.1 Design of Field Limiting Ring Termination
		2.2 Design of Field Plate-Field Limiting Ring Termination
	3 Simulation Results and Optimization
		3.1 Simulation of 6.5 kV SiC MOSFET Termination
		3.2 6.5 kV SiC MOSFET Field Limiting Ring Termination Optimization
	4 Conclusion
	References
Research on Factors Affecting Audible Noise of 500 kV Double-Circuit Straight-Line Tower AC Transmission Line
	1 Introduction
	2 Calculation Methods and Processes
	3 The Study of Factors Affecting Audible Noise
		3.1 The Effect of Sub-conductor Radius on Audible Noise
		3.2 The Impact of Minimum Height to Ground on Audible Noise
		3.3 The Influence of Phase Spacing on Audible Noise
	4 Conclusion
	References
Transmission Ampacity Improvement of EHV Submarine Cable
	1 Introduction
	2 Methodology
	3 Results and Discussions
		3.1 Water Pipe Cooling
		3.2 Wind Cooling
		3.3 Backfill Soil Cooling
	4 Conclusion
	References
Multi-Physics Field Simulation Analysis of GIS Disconnect Switch Contact Temperature Considering Contact Anomalies
	1 Introduction
	2 Building Physical Models
		2.1 Geometric Models
		2.2 Material Parameters
	3 Building Mathematical Models
		3.1 Electromagnetic Fields
		3.2 Thermal- Fluid Field
		3.3 Multi-Physical Field Coupling
	4 Analysis of Simulation Results
	5 Comparison of Abnormal States
	6 Conclusion
	References
Finite Element Analysis of Physical Properties of New Transformer Core Materials
	1 Introduction
	2 Maxwell Equations
	3 Model Establishment
		3.1 Winding Excitation Equation
		3.2 Iron Core Material
	4 Analysis of Simulation Results
		4.1 Flux Density Distribution
		4.2 Magnetic Field Intensity Distribution
		4.3 Core Loss
	5 Conclusion
	References
Research on Current Limiting Protection Method of Short Circuit Faults in Medium Voltage DC Integrated Power Systems
	1 Introduction
	2 Short-Circuit Protection Requirements for Medium Voltage DC Integrated Power Systems
		2.1 Network Structure
		2.2 Short Circuit Fault Characteristics
		2.3 Protection Needs and Difficulties
	3 Current Limiting Protection Method
		3.1 Configuration Scheme of Fault Current Limiters
		3.2 Current Limiting Protection Characteristics
	4 Conclusions
	References
Structural, Magnetic, Relaxor Ferroelectric and Magnetoelectric Coupling Properties in Aurivillius Phase Bi6La3Ti3Fe5O27
	1 Introduction
	2 Experimental Procedure
	3 Results and Discussion
	4 Conclusions
	References
Electric Field Optimization of Optical Fiber Insulator Based on Random Focus Search Algorithm
	1 Introduction
	2 Methodology
		2.1 Simulation Model of Optical Fiber Insulator
		2.2 Fundamental Physics Equations
	3 Results and Analysis
		3.1 Electric Field Distribution of Optical Fiber Insulator
		3.2 Influencing Factors of Electric Field Strength
		3.3 Random Focus Search Algorithm
	4 Conclusion
	References
Research on the Influence of Safety Film on the Thermal Field Distribution of Metallized Film Capacitors
	1 Introduction
	2 Safety Metallized Film
	3 Analysis of Thermal Characteristics of Safety Metallized Film Capacitor
		3.1 Generation and Conduction of Heat Inside the Capacitor
		3.2 Simulation Analysis of Equivalent Thermal Resistance of Safety Metallized Film
		3.3 Temperature Rise of Safe Metallized Film Capacitors
	4 Conclusion
	References
Research on Post-arc Recovery Characteristics of Sheath in Long-Gap Vacuum Circuit Breaker
	1 Introduction
	2 Continuous Transition Model of Post-arc Sheath
		2.1 Bohm Sheath Model
		2.2 Continuous Transition Model
		2.3 Breakdown Criteria in Vacuum Switches
	3 Numerical Simulation of the Post-arc Sheath of 252 kV Vacuum Interrupter
		3.1 Selection of Key Parameters of 252 kV Vacuum Interrupter
		3.2 Sheath Growth Process Based on the CTM Model
	4 Conclusion
	References
Effect of Different Grounding Schemes on the Circulating Current of Gas-Insulated Transmission Lines
	1 Introduction
	2 Theoretical Model
	3 Results
		3.1 GIL Single-Phase Segmented Circulation Model
		3.2 GIL Single-Phase Circulation Model
		3.3 GIL Three-Phase Circulating Current Model with Shorting Row
	4 Conclusion
	References
Research on Digital Twin Analysis Technology of Electric Field in the Near Area of DC Grounding Electrode
	1 Introduction
	2 Digital Twinning Algorithm
	3 Case Analysis
	4 Conclusion
	References
Coupling Simulation and Experimental Verification of Partial Discharge Sound Field and External Optical Fiber in Insulation Air Gap of Cable Joint
	1 Introduction
	2 Acoustic Wave Propagation and Coupling Principle
		2.1 Generation and Propagation of Partial Discharge Acoustic Waves
		2.2 Coupling of Sound Wave and Fiber Strain
	3 Ultrasonic Simulation of Air Gap PD in Cable Joints
		3.1 Simulation Settings
		3.2 Analysis of Simulation Results
	4 Partial Discharge Sensing Experiment
	5 Conclusions
	References
Analysis of Safety for UAV Inspection of Electric Field in 220 kV Substation
	1 Introduction
	2 Methods and Models
		2.1 Finite Element Method
		2.2 UAV and 220 kV Substation Simulation Model
	3 Calculation
	4 Conclusion
	References
Research on Electric Field Safety Distance of High-Voltage Equipment in Substations Inspected by UAV
	1 Introduction
	2 Principle and Model
		2.1 Principle of Electrostatic Field Simulation
		2.2 Simulation Model
	3 Simulation
	4 Conclusion
	References
Performance of Annual Flashover Rate at Individual Poles in a Distribution Network Due to Indirect Lightning
	1 Introduction
	2 Line Configurations and Monte Carlo Method
		2.1 Line Configurations
		2.2 Monte Carlo Method for Indirect-Lightning Evaluation
	3 Lightning Performance Due to Indirect Lightning
		3.1 Flashover Performance Along the Distribution Lines
		3.2 Flashover Number at Individual Poles Versus the Soil Conductivity
		3.3 Flashover Number at Individual Poles Without Surge Arresters
	4 Conclusion
	References
Analysis of Induced Voltage of a Single-Point Grounded OPGW in 35 kV Distribution Lines
	1 Introduction
	2 Data and Calculation Model
		2.1 Mechanism of Ground Wire Induced Voltage Formation
		2.2 Tower Model and Parameters
		2.3 Line Model and Parameters
		2.4 Operating Parameters of the Line
	3 The Distribution of Induced Voltage
	4 The Influence of Operating Parameters on Induced Voltage
		4.1 The Influence of Tower Height on Induced Voltage
		4.2 The Influence of Conductor Transposition on Induced Voltage
	5 Conclusion
	References
Research on Pre-synchronization Control Strategy for the Integration of Individual Microgrid into Microgrid Clusters
	1 Introduction
	2 Modeling of Microgrid Clusters Based on VSG Control
	3 Pre-synchronization Control Strategy in Microgrids
		3.1 Microgrid Mode Switching Stability Analysis
		3.2 Pre-synchronization Control Strategy
	4 Simulation Results and Validation
	5 Conclusion
	References
Fault Identification of MOA Based on Infrared Thermal Imaging
	1 Introduction
	2 Principle of Fault Diagnosis
		2.1 Principle of MOA Segmentation
		2.2 Principle of Temperature Extraction
		2.3 Principles of Fault Detection
	3 Validation
	4 Conclusion
	References
Research on Key Technologies of Intelligent Defect Image Detection for Substation Equipment in Complex Scenes
	1 Introduction
	2 Abnormal Image Discrimination Technology Based on SIFT
		2.1 Basic Principles of SIFT Algorithm
		2.2 A Method and Verification for Distinguishing Abnormal Images of Substation Equipment Based on SIFT
	3 Defect Image Recognition Technology Based on Faster RCNN
		3.1 Fundamentals of Faster RCNN
		3.2 Method and Verification of Transformer Equipment Defect Image Recognition Based on Faster RCNN
		3.3 Multidimensional Image Comprehensive Analysis Technology for Substation Equipment
	4 Conclusion
	References
Calculation Analysis of Fast Motorised Crossing Devices for Transmission Line Erection
	1 Introduction
	2 Crossover Device Design
	3 Modelling and Load Analysis
		3.1 Model Building
		3.2 Load Calculation
	4 Force Simulation
	5 Data Analysis
	6 Conclusion
	References
Application of Portable Tower Arc Sag Observer in Transmission Line Engineering
	1 Introduction
	2 Research Status of Arc Sag Observation of Transmission Lines
	3 Theoretical and Practical Basis of Portable Tower Arc Sag Observatory
	4 Structural and Functional Parameters of the Portable Tower Arc Droop Observatory
		4.1 Constructed of a Portable Tower Arc Dip Observatory
		4.2 Constructed of a Portable Tower Arc Dip Observatory
		4.3 Mainly Use the Function
	5 Conclusion
	References
Self-learning Diagnosis of Transmission Line Fault Type Based on Deep Forest and SMOTE
	1 Introduction
	2 Typical Faults and Characteristic Extraction
	3 Deep Forest and SMOTE Arithmetic
	4 Algorithm Application and Result Analysis
	5 Conclusion
	References
Chemical Trap Orbital Analysis of Styrene-Grafted Polypropylene for HVDC Cable Insulation
	1 Introduction
	2 Computational Details
	3 Results and Discussion
		3.1 Analysis on Trap Orbitals
		3.2 Analysis on Potential Well
	4 Conclusions
	References
Numerical Simulation of Transient Temperature Rise on 110 kV/40 MVA Vehicle-Mounted Mobile Transformer
	1 Introduction
	2 Mechanisms of Heat Generation and Dissipation
	3 Simulation Model and Method
	4 Simulation Results
	5 Conclusion
	References
Calculation of Distributed Photovoltaic Hosting Capacity in Distribution Network
	1 Introduction
	2 Simulation Model Construction
	3 Impact of Distributed PV Access on Power Quality
		3.1 Impact on Node Voltage
		3.2 Impact on Harmonics
	4 Impact of Distributed PV Access on Line Thermal Stability and Network Losses
		4.1 Impact on Line Thermal Stability
		4.2 Impact on Network Losses
	5 Calculation of Distributed Photovoltaic Hosting Capacity of LV Distribution Networks
		5.1 Distribution Network PV Hosting Capacity Constraints
		5.2 Calculation of the PV Hosting Capacity of the Distribution Network
	6 Conclusion
	References
Analysis of Induced Current of OPGW in 750 kV Transmission Lines
	1 Introduction
	2 Data and Calculation Model
		2.1 Mechanism of Ground Wire Induced Current Formation
		2.2 Tower Model and Parameters
		2.3 Line Model and Parameters
		2.4 Operating Parameters of the Line
	3 The Induced Current Along the Line
	4 The Influence of Operating Parameters on Induced Current
		4.1 The Influence of Grounding Resistance on Induced Current
		4.2 The Influence of Span on Induced Current
		4.3 The Influence of Conductor Transposition on Induced Current
	5 Conclusion
	References
Analysis of Electromagnetic Field Distribution of Aircraft Lightning Strike
	1 Introduction
	2 Determination of Different Lightning Paths of Aircraft
	3 Electromagnetic Field Distribution of Aircraft
		3.1 Electromagnetic Field Distribution on Aircraft Surface Under Different Lightning Paths
		3.2 Electromagnetic Field Intensity in Aircraft Interior Space
	4 Conclusion
	References
Study of the Effect of Oblique Photography Route Overlap Rate on 3D Reconstruction
	1 Introduction
	2 Data Acquisition and Parameter Setting
		2.1 Study Area
		2.2 UAV Selection
		2.3 Route Parameters
	3 3D Reconstruction
		3.1 Aerial Triangulation
		3.2 Multi-vision Image Intensive Matching
		3.3 Mesh Construction and Texture Mapping
	4 Model Accuracy Analysis
	5 Conclusion
	References
Design and Thrust Output Analysis of Linear Induction Motor for Electromagnetic Ejection of Fixed-Wing UAV
	1 Introduction
	2 Kinematics Analysis of UAV Takeoff
	3 Establishment of Mathematical Model of Linear Induction Motor
	4 Analysis of Thrust Force of Linear Induction Motor
	5 Linear Motor Parameter Design and Simulation Analysis
	6 Conclusion
	References
A Variable Frequency Voltage Injection Method for Modular Multilevel Converter in Variable Speed Driver
	1 Introduction
	2 Proposed Variable Frequency Injection Method
		2.1 Circuit Configuration
		2.2 Analysis of SM Capacitor Voltage Ripples
		2.3 Proposed Injection Method
	3 Simulation and Experimental Results
		3.1 Simulation Results
		3.2 Experiment Results
	4 Conclusion
	References
A 24-Pulse Aviation Rectifier Based on Auto-Fed Half-Bridge Auxiliary Circuit
	1 Introduction
	2 Proposed 24-Pulse TRU
		2.1 The Proposed 24-Pulse TRU Topology Analysis
		2.2 Operation Modes Analysis
		2.3 Output Current and Optimal Turns Ratio β
	3 kVA of the Auxiliary Single-Phase Autotransformer
	4 Simulation and Experiments
	5 Conclusion
	References
Study on Analysis Method of Zinc Oxide Line Arrester Fracture
	1 Introduction
	2 Calculate the Maximum Impulse Power of the Arrester Under Lightning Current Impact
		2.1 Volt-Ampere Characteristics of Zinc Oxide Valve Plates
		2.2 Double Exponential Function Lightning Current Waveforms
		2.3 Matlab Simulation of Lightning Arrester Pulse Power Under Lightning Current Impact
	3 Valve Break Determination and Case Studies Based on Griffith Standards
	4 Conclusion
	References
Multiphysics Coupling Simulation and Analysis of Influencing Factors on Temperature Rise Characteristics of Tri-Post Insulator GIL
	1 Introduction
	2 GIL Multiphysics Simulation Model
		2.1 Geometric Model
		2.2 Flow Field-Temperature Field Mathematical Model
		2.3 Temperature-Strain Field Mathematical Model
	3 Results and Analysis
		3.1 GIL Temperature Field
		3.2 Effect of Different Factor on GIL Temperature Field
		3.3 Effect of Different Factor on GIL Thermal Strain
	4 Conclusion
	References
Influence Mechanism of Hot-Press Setting Time and Winding Tension on the Performance of Metallized Film Capacitors
	1 Introduction
	2 Samples and Tests
		2.1 Sample Preparation
		2.2 Test Method
	3 Results and Discussion
	4 Conclusion
	References
Multivariate Model Predictive Control for High Permeability Photovoltaic Microgrid
	1 Introduction
	2 Structure of the PV Inverter Grid-Connected System
	3 Control Strategy of the PV Inverter Grid-Connected System
		3.1 MPPT Control of DC/DC Converter
		3.2 Model Predictive Control of DC/AC Inverter
	4 MATLAB/Simulink Simulation Experiment
		4.1 Testing Parameters
		4.2 Test 1: PI Control
		4.3 Test 2: Multivariate MPC Control
	5 Conclusion
	References