The 37th Annual Conference on Power System and Automation in Chinese Universities (CUS-EPSA)

Contents Identifications of Feeder Clusters and Generic Switching Station Types for Urban S-SCDN Based on Graph Calculation 1 Introduction 2 Related Concepts 2.1 SCDN and GS 2.2 S-SCDN 2.3 S-SCDN Feeder Cluster Definition 3 Graph Database and Graph Calculation 3.1 Graph Database and Data Characteristics 3.2 Graph Calculation Characteristics 3.3 BSP Calculation Model 4 Identification of Feeder Clusters and GS Type Based on Graph Calculation 4.1 Establishment of Graph Database Model of S-SCDN 4.2 Connected Component Algorithm 4.3 Feeder Cluster Identification 4.4 Feature Analysis and Type Identification for Generic Switching Stations 4.5 Application Case Analysis 5 Conclusion References Total Supply Capacity of the Distribution Network Based on SCDN 1 Introduction 2 Introduction to Basic Concepts of SCDN 2.1 Supply Transfer Rules for SCDN Supply Area 2.2 Simplification of SCDN Network 3 Modeling and Solving the Total Supply Capacity of SCDN 4 Case Analysis 4.1 Case Introduces 4.2 SCDN Partition of the Case 4.3 Case Solving Results 5 Conclusion References A Location Method of Pole-to-Ground Fault in DC Transmission Lines Based on VSC 1 Introduction 2 Analysis of Single Pole Grounding Malfunction on DC Transmission Line Based on VSC 2.1 Single Pole Ground Fault Process Analysis 2.2 DC Side Capacitor Discharge Stage 3 Single Pole Ground Fault Location Principle 3.1 Fault Line Impedance Initial Value Calculation 3.2 Calculated Value of Least Squares Optimized Fault Line Impedance 3.3 Fault Distance Calculation 4 Simulation Analysis 5 Conclusion References Review of Carbon Electricity Coordinated Planning for Modern Power System 1 Introduction 2 Data Support and Analysis Tools for CECP 2.1 Carbon Perception Technology (Data Support) 2.2 Carbon Tracking Technology (Analysis Tools) 3 Application Model for CECP 3.1 Power Grid Coordination Planning Considering Carbon Trading 3.2 The “SOUrce-Grid-Load-Storage” Coordination Planning 3.3 Power Grid “CENtralized and Wide-Area-Decentralized Coordination” Planning 4 Conclusion References Info-Gap Decision Theory Based Wind-Storage System Day-Ahead Bidding Strategy 1 Introduction 2 Basic Concepts 2.1 The Trading Mode 2.2 The Risk Preference 3 Optimization Model 3.1 Objective Function 3.2 Constraints 4 Uncertainty Model of Electricity Price Based on IGDT 4.1 Mathematical Formulas 5 Case Study 5.1 Result Analysis of Optimal Decision based on Predicted Electricity Price 5.2 The Strategy Analysis under Different Risk Preferences 6 Conclusion References Transactive Energy Control of Electric Vehicles for Grid Peak Load Shaving Based on Dynamic Electricity Price 1 Introduction 2 The Architecture of TEC System of EVs Based on Alliance Blockchain 2.1 Proposed Architecture of TEC System of EVs Based on Alliance Blockchain 2.2 TEC Process of EVs 3 Multi-objective Optimization Model Between EVA and EVs 4 Simulation Results and Discussions 4.1 Solution of Dynamic Electricity Price and Scheduling Strategies for EVs 4.2 Disaggregation of the Scheduled Plan Among EVs by EVA 4.3 Comparison of the Proposed Method and the TOU Electricity Price Mode 5 Conclusions References Research on Optimal Control Strategy of VSG Damping Loop Based on MMC 1 Introduction 2 Modular Multilevel Converter and Control Strategy for Virtual Synchronous Generator 2.1 Mathematical Model of Modular Multilevel Converter 2.2 Virtual Synchronous Generator Control Strategy 3 The Improved VSG Control Strategy 3.1 The Optimized VSG Control Principle 3.2 Parameter Design of High-Pass Filter 4 Optimized Control Simulation 4.1 Simulation Parameters of the MMC Model 4.2 Off-Grid Operation of VSG 4.3 Grid-Connected Operation of VSG 5 Conclusion References An Evaluation Method of Urban Grid Planning Based on Fractal Theory and Territorial Load 1 Introduction 2 Fractal Dimension Algorithm for Electric Power Network 2.1 Box Dimension and Its Coverage Depth Algorithm 2.2 Length-Radius Dimension Algorithm 3 Comprehensive Evaluation Index System for Grid Planning 3.1 Box Dimension Index of Power Grid 3.2 Consistency Index Between Power Grid and Geographic Space 3.3 Weighted Consistency Index of Power Grid Based on Territorial Load 3.4 Length-Radius Dimension Index of Power Grid 4 Case Analysis 4.1 Box Dimension Index of Power Grid 4.2 Consistency Index Between Power Grid and Geographic Space 4.3 Weighted Consistency Index of Power Grid Based on Territorial Load 4.4 Length-Radius Dimension Index of Power Grid 4.5 Analysis of the Current Situation Year and the Prospective Year 5 Conclusion References Research on Safety Management and Control of Power Enterprises Based on AI and Edge Computing Technology 1 Background 2 Design and Development of Edge Computing Device 2.1 Overall Architecture 2.2 Cloud Software Platform 2.3 Network Side Design 2.4 Edge Design 2.5 End Side 3 Edge Computing Device 3.1 Hardware Design 3.2 Edge Computing Device Software Design 3.3 Algorithm Ability 4 Secure Access Design of Edge Computing Devices 4.1 Terminal Security Access Management 5 Work Collaboration Mechanism Centered on Edge Computing 5.1 Construction Notification Reminder 5.2 License Notification Reminder 5.3 Violation Notice 6 Innovation 6.1 Flexibility 6.2 Real-Time 6.3 Economy 7 Application Summary 8 Future Prospects References Auto Division Strategy of Power Supply Unit in Distribution Network Mesh Planning Based on Graph Theory 1 First Section 2 Gridded Planning Principles and Attribute Modeling 2.1 Methods and Principles of Grid Planning 2.2 Gridded Attribute Modeling Based on Electricity Plots 3 Gridded Power Supply Unit Partitioning Algorithm 3.1 Generate a Weighted Adjacency Graph 3.2 Power Supply Unit Division Based on Adjacency Graph 3.3 Evaluate the Power Supply Unit Partition Scheme 4 Case Analysis 4.1 Division of Power Supply Units Based on Subjective Experience 4.2 Division of Power Supply Units Based on Graph Theory 4.3 Analysis of Evaluation Indicators 5 Conclusion References Fault Pattern Recognition of Switch Cabinet Partial Discharge Based on GAN-CNN 1 Introduction 2 Introduction of PRPD Spectrums 3 Fault Pattern Recognition Based on GAN-CNN 4 Case Studies 5 Conclusion References Research on Fault Location Expert System of Secondary System of Intelligent Substation Based on Fuzzy Fault Tree Theory 1 Introduction 2 Secondary System Fault Tree Analysis 2.1 Establishment of Secondary System Fault Tree 2.2 Establishment of Secondary System Fault Tree 3 Fault Tree Bottom Event Fuzzy Probability Calculation 3.1 Natural Language is Converted to Fuzzy Numbers 3.2 Synthesis of Fuzzy Numbers 3.3 Converts the Fuzzy Number to a Fuzzy Probability 3.4 Converts the Fuzzy Probability to the Fuzzy Failure Probability 4 Expert Systems Based on Fuzzy Fault Tree Theory 4.1 Establishment of Expert System Knowledge Base Based on the Minimum Cut Set of Fault Trees 4.2 Conflict Resolution Strategy Based on Event Probability 4.3 Multiple Fault Location Ideas 5 Case Studies 6 Conclusions References Coordinated Voltage Control Strategy of Wind Farm-Synchronous Condenser Based on Model Predictive Control 1 Introduction 2 Wind Power Grid-Connected System with Synchronous Condenser 2.1 Wind Farm Reactive Power Loop Model 2.2 Synchronous Condenser Excitation Model 2.3 PCC Voltage Control Mode 3 Voltage Coordinated Control Based on Model Prediction 3.1 System State Space Model 3.2 Model Predictive Control Strategy 4 Simulation Verification 5 Conclusion References Data Valuation in Electricity Transactions Incorporating Uncertainty Reduction by Kernel Density Estimation 1 Introduction 1.1 Background 1.2 Literature Review 1.3 Contributions 2 Modeling of Electrical Transactions 3 Kernel Density Estimation and Data Value 4 Case Studies 5 Conclusions and Future Work References Distribution Network Multi-time Scale Resilience Index Framework Considering Generation-Grid-Load-Storage Resources 1 Introduction 2 Connotation of Resilient Distribution Network 3 Resilience Evaluation Index System and Evaluation Process 3.1 Resilience Index Evaluation System 3.2 Resilience Assessment Process 4 Case Study 5 Conclusion References TOPSIS Scoring Method for Industrial Users Based on DEMATEL-EWM Weighting Method 1 Introduction 2 User Electricity Behavior Index System 3 TOPSIS Model Based on Improved Weighting Method 3.1 TOPSIS Evaluation Method 3.2 DEMATEL-EWM Weighting Method 3.3 Improved Power Consumption Evaluation Model for Industrial Users 4 Case Study 4.1 Evaluation Results of the DEMATEL-EWM-TOPSIS Model 4.2 Comparison Between Improved Method and Traditional Method 5 Conclusion References Research on Fault Ride Through Control Strategy Based on Multi Terminal Flexible DC Transmission System 1 Introduce 1.1 Research Background 1.2 Research Status 2 Topology of AC/DC Hybrid System 3 Control Principle of MMC-HVDC 3.1 Control Principle of GSMMC 3.2 Control Principle of WFMMC 3.3 Hybrid DC Circuit Breaker 3.4 Energy Dissipation Resistance 4 Simulation Analysis of AC/DC Fault Ride Through 4.1 Feasibility Verification of AC Fault Ride Through Strategy 4.2 Feasibility Verification of DC Fault Ride Through Strategy 5 Conclusion References Evaluation Indicator System of Natural Gas Pressure Power Generation System and Its Application 1 Introduction 2 Power Generation Principle 3 Evaluation Indicator System 3.1 Energy Conversion Efficiency 3.2 Technological Readiness and Advancement 3.3 Operational Safety and Reliability 3.4 Economic Feasibility 4 Simulation Results and Analysis 4.1 Energy Conversion Efficiency 4.2 Technological Readiness and Advancement 4.3 Operational Safety and Reliability 4.4 Economic Feasibility 5 Conclusion References Research and Analysis of SBO DGs Black Startup for the HPR1000 Nuclear Power Plant 1 Introduction 2 The Stage of Black Startup 3 Power Distribution Structure of HPR1000 4 Station Black Out 4.1 The Meaning of Station Black Out 4.2 Design Requirements Under Station Black Out 4.3 Consequences of SBO DGs Under Station Black Out 4.4 Reloading Sequence of SBO DG 4.5 Capacity of SBO DGs 5 Conclusion References Mobile Energy Storage System Fleets Participated Active Distribution Network Restoration Model 1 Introduction 2 Traveling Model of MESS Fleets 2.1 Transit Delay Model of MESS 2.2 Operation Constraints of MESS 3 Mathematical Formulation of Coordinated Network Restoration Model 3.1 Deterministic Network Restoration Model 3.2 DG and Load Forecast Uncertainty 3.3 Robust Optimization Formulation 4 Case Study 4.1 Computational Result of Deterministic Model 4.2 Computational Result of Robust Model 5 Conclusion References The Multi-Wind Hydrogen Storage Alliance Participates in the Bidding Game in the Electricity Market 1 Introduction 2 Principle of the Multiwind Hydrogen Storage Alliance 3 Banzhaf-Owen Value Gain Allocation Strategy with Alliance Structure 3.1 Where the Benefits are Distributed for Multi-wind Priority Alliances and Hydrogen Storage 3.2 For Revenue Distribution Within Multiple Wind Farms 3.3 Core Theory 4 Example Analysis 4.1 Example Data 4.2 Analysis of Results 5 Summary References Research on Automatic Identification Technology of Transmission Line Images Based on Deep Learning 1 Introduction 2 Target Detection Algorithms 3 Dictionary Learning Method 4 YOLO Network Combined with Dictionary Learning for Fault Identification Such as Missing Pins 4.1 Image Library Construction 4.2 Nut Positioning Method Based on YOLO Model 4.3 Iterative Dictionary-Based Learning Methods 4.4 Algorithmic Reality 5 Conclusion References MMC-MTDC Transmission Line Protection Scheme Based on Single Terminal Transient 1 Introduction 2 Fault Transient Characteristic Analysis and Characteristic Quantity Extraction 2.1 Analysis of Fault Boundary Characteristics Inside and Outside the Zone 2.2 Analysis of Interpolar Coupling Characteristics 2.3 Generalized S Transformation 3 Fault Identification Methods and Criteria 3.1 Protection Start Criterion 3.2 Fault Line Selection 3.3 Fault Pole Identification 4 Simulation Results and Verification 4.1 Fault Line Detection 4.2 Fault Pole Detection 4.3 Sensitivity Analysis 5 Conclusion References Research on Grid Interconnection of DFIG Generation System Based on Grey Fuzzy PI Control 1 Introduction 2 DFIG Load Grid Connection Structure and Control System 2.1 Principle of Load Grid Connection 2.2 Control System of Load Grid Connection 3 Design of Grey Prediction Fuzzy PI Controller 3.1 Fuzzy PI Controller 3.2 Grey Fuzzy PI Controller 4 Simulation Analysis 4.1 Simulation Parameter Setting 4.2 Analysis of Simulation Results 5 Conclusion References Research on Model Predictive Control of Modular Multilevel Matrix Converter 1 The Introduction 2 Working Principle and Mathematical Model of MMMC 3 MMMC Control Policy 3.1 Current Loop Control 3.2 Voltage Loop Control 3.3 Capacitor Voltage Balance Control 4 Design of Inner Loop Model Predictive Controller 4.1 Establishment of Prediction Model 4.2 Cost Function Design 5 The Simulation Analysis 6 Conclusion References Settings Optimization Method for Zero-Sequence Directional Overcurrent Relays Based on Coordination Time Interval 1 Introduction 2 Analysis of Time Difference of Inverse-Time Zero-Sequence Overcurrent Protection 3 Settings Optimization Method of the DOCRs 3.1 Unified DOCRs Setting Principle 3.2 Settings Optimization Method of the DOCRs Based on the CTI 4 Case Analysis 5 Conclusion References Investigation on Steady State Characteristics and Loss Reduction Measures of 220 kV Power Cables 1 Introduction 2 System Description and Modeling Method 2.1 System Description 2.2 Modeling Methods 3 Results and Discussion 4 Conclusion References Optimal Planning of Integrated Electric and Heat System Considering Dynamics of Heat System 1 Introduction 2 Model of Integrated Electric and Heat System 2.1 Power System Model 2.2 Heat System Model 2.3 Modeling of CHP Units 3 Optimal Planning Method of IEHS Considering Dynamics of Heat System 3.1 Objective Function 3.2 Constraints 4 Case Study 4.1 Methods Setting 4.2 Simulation Results and Analysis 5 Conclusion References Adjustable Robust Optimal Dispatch of Microgrid Cluster with SESS Considering Uncertain Renewable Energy and Load 1 Introduction 2 System Structure 3 Mathematical Formulation 3.1 Robust Equivalent Characterization of Uncertain Parameters 3.2 Model of Microgrid Cluster Pre-Scheduling 3.3 Model of Microgrid Cluster Rescheduling 4 Solution Step 5 Case Study 5.1 Results and Discussions 6 Conclusions References Post-Disaster Recovery Strategy for the Distribution Network Considering Mobile Emergency Resource 1 Introduction 2 Mathematical Model 2.1 Distribution Network Reconfiguration Model 2.2 Transportation Network Model 3 Post-Disaster Recovery Strategy 3.1 Post-Disaster Reconfiguration of the Distribution Network 3.2 Power Supply Restoration from MERs 4 Case Study 4.1 Case Information 4.2 Analysis of Simulation Results 5 Conclusion References Robust Operation of Zero-Carbon Micro-Energy Network with Combination of Hydrogen and Water Storage 1 Introduction 2 Zero-Carbon Micro-Energy Network Modeling 2.1 Fuel Cell System 2.2 Hydrogen Electrolyzer 2.3 Water Tank Thermal Storage 2.4 Heat Pump 2.5 Absorption Chiller 2.6 Energy Balance 3 Robust Optimization Dispatch Strategy 3.1 Uncertainty Modeling 3.2 Robust MPC Dispatch Strategy 4 Case Study 5 Conclusion References Low-Carbon Dispatch of Electricity Hydrogen Energy System with RSOC-ORC Considering Integrated Demand Response 1 Introduction 2 Structure of EHIES 3 Dispatch Model of EHIES 3.1 Modeling of EHIES 3.2 Multi-energy Coupled Modeling Based on ORC 3.3 Modeling of IDR 3.4 Constraints 3.5 Ladder Carbon Trading Mechanism 3.6 Objective Function 4 Case Study 4.1 RSOC-ORC Model Validation 4.2 Benefit Analysis Considering Comprehensive Demand Response Including RSOC-ORC 5 Conclusion References Benchmarking Research on Market Policy of Renewable Energy Generation in New Power System 1 Introduction 2 Benchmarking System Construction 3 Analysis of Benchmarking Results 3.1 Renewable Energy Generation Construction 3.2 Renewable Energy Generation Operation 3.3 Renewable Energy Generation Support 4 Suggestions for Electricity Market Development 5 Conclusion References A Blockchain-Based Microgrid Measurement Data Storage and Tampering Detection Framework 1 Introduction 2 Related Works 3 Blockchain-Based Microgrid Measurement Data Storage Framework 3.1 The Design of Framework Structure 3.2 The Development of Smart Contract 3.3 The implement of microgrid measurement data storage framework 4 Blockchain-Based Tampering Detection 5 Conclusion References Two-Stage Optimal Scheduling of Microgrid Basedon Demand Response 1 Introduction 2 Economic Analysis of Microgrid in Power Production Environment 2.1 microgrid Purchase and Sell Electricity in the Role of Users 2.2 Microgrid Participation in Independent Ancillary Services 2.3 Two-level Demand Response Inside and Outside the Microgrid 3 Microgrid Structure 3.1 General Framework 3.2 Optimal Dispatch Model for Microgrid Participation in Electricity Market 3.3 User Load Curve Optimization Model 4 Eample analysis 4.1 Basic Data 4.2 Simulation Results 5 Conclusion References Research on Source-Load Cooperative Optimization Configuration for Combined Solar and Air Source Heat Pump System Based on Demand Response 1 Introduction 2 System Structure and Mathematical Model 2.1 Solar Collector 2.2 Air Source Heat Pump 2.3 Heat Storage Tank 2.4 Heat Consumer 3 Optimization Model 3.1 Upper-Level Problem 3.2 Upper-Level Constraints 3.3 Lower-Level Problem 3.4 Lower-Level Constraints 4 Optimization Algorithms 5 Example 5.1 Load Characteristics and Peak and Valley Tariff 5.2 Analysis of Optimization Results 6 Conclusion References Research on the Impact of Carbon Tax on Low-Carbon Economic Dispatch 1 Introduction 2 Wind Power Uncertainty Modeling Based on Weibull Probability Distribution 3 Economic Dispatch Model Considering Carbon Tax 3.1 Objective Function 3.2 Constraints 4 Case Studies 4.1 Basic Parameters 4.2 Impact Analysis of Carbon Tax 4.3 Impact Analysis of Carbon Tax in Different Wind Power Penetration Systems 5 Conclusion References Study on Power System Resilience Considering Wind Farm Connection Under Typhoon 1 Introduction 2 Power System Disaster Impact Model 2.1 Typhoon Wind Field Model 2.2 Component Fragility Model 3 Power System Resilience Assessment 3.1 Power System Resilience Metric 3.2 Power System Resilience Assessment Process 4 Post Disaster Response Model of Power System with Wind Turbine 4.1 Wind Turbine Output Model 4.2 Power System Scheduling Strategy 4.3 Objective Function and Constraints 5 Case Studies 5.1 IEEE 9-Bus System 5.2 Power System Resilience Assessment 5.3 Enhancement of Resilience 6 Conclusions References Optimal Scheduling of Virtual Power Plants Based on the Distributionally Robust Optimization Theory 1 Introduction 2 Virtual Power Plant Transaction Model Based on DRO 2.1 Prediction Error Fuzzy Set Construction Based on Wasserstein Distance 2.2 Optimal Scheduling Model of Virtual Power Plant Based on DRO 2.3 Linearization of the DRO Model 3 Case Studies 3.1 Parameter Configuration 3.2 Analysis of Optimization Scheduling Results of Virtual Power Plant Resources 3.3 Optimization Effect Analysis of DRO 4 Summary References Research on Peak Regulation Benefits of River Basin Hydro-Photovoltaic Complementary System 1 Introduction 1.1 A Subsection Sample 2 Research on Peak Regulation Mode of River Basin Hydropower Station Based on Hydro-Photovoltaic Complementary 2.1 The Basic Principle of Hydro-Photovoltaic Complementary System 2.2 Construction of Peak Regulation Model for River Basin Hydropower Station 2.3 Evaluation Index of Peak Shaving Operation of Hydro-Photovoltaic Complementary System 3 The Load Distribution Model of River Basin Hydropower Station Based on Peak Regulation Mode 3.1 Construction of Short-Term Load Distribution Model for Cascade Hydropower Stations 3.2 Model Constraints 3.3 Model Solving 4 Case Analysis 4.1 Method and Sample Selection 4.2 Output Calculation of Hydro-Optical Complementary System in Different Scenarios 4.3 Analysis of Output Evaluation Index of the Hydro-Optical Complementary System in Different Scenarios 5 Conclusion References Pricing Strategy of Fast Charging Stations in Coupled Power-Transportation System Considering Responsive Traffic Demand 1 Introduction 2 Coupled Power-Transportation System Modeling 2.1 Bi-level Optimization Model 2.2 Power Distribution Network Modeling 2.3 Transportation Network Modeling 2.4 Responsive Traffic Demand 3 DRL-Based Model 3.1 State and Action 3.2 State Transition 3.3 Reward 3.4 Soft Actor-Critic Algorithm 4 Numerical Example and Analysis 5 Conclusion References Voltage Stability Control of Bus Switch Capacitor in PV DC Collection System 1 Introduction 2 PV DC Collection System Topology 3 The Structure and Working Principle of Switched Capacitor 3.1 Switched Capacitor Topology 3.2 Switched Capacitor Modes of Operation 4 Control Strategy of Switched Capacitor 5 Simulation Studies 6 Conclusion References Incremental Benefits Allocation for Multi-stakeholder Wind-Solar-Hydro-Hydrogen Energy System Based on Cooperative Game Theory 1 Introduction 2 Models of Wind-PV-Hydro-Hydrogen Energy System 2.1 The Expectation Function of Wind and PV Power 2.2 Objective Function 2.3 Constrains 3 Allocation Methods 3.1 Quantification for Incremental Benefit 3.2 Shapley Value Method 3.3 Aumann-Shapley Value Method 4 Case Study 4.1 Case 1 for a 5-Stakeholder Wind-PV-Hydro-Hydrogen Generation System 4.2 Case 2 for a 50-Stakeholder System in Lower Yalong River Basin 5 Conclusion References An Agent-Based Simulation Analysis of Day-Ahead Market Pricing Mechanism for Energy-Frequency Regulation-Reserve Combined Operation for Wind Integrated Power System 1 Introduction 2 Day Ahead Market Clearing Model Considering Ancillary Service Availability 3 LMP Pricing Mechanism 4 VCG Pricing Mechanism 5 Agent-Based Simulation 6 Numerical Analysis 6.1 Analysis of Incentive Compatibility Characteristics 6.2 Agent-Based Simulation Analysis 7 Conclusion References Blockchain Based Energy Dispatch in Honeycomb Active Distribution Network 1 Introduction 2 Honeycomb Active Distribution Network and Its Energy Hub 3 Energy Dispatch in Energy Hub of Honeycomb Active Distribution Network Based on Blockchain 3.1 Blockchain Platform Structure of Energy Dispatch in Energy Hub 3.2 Information Exchange Process Analysis of Energy Hub Based on Blockchain in Energy Dispatch for Voltage Control 4 Case Study 5 Conclusion References Power System Reinforcement Considering Integrated and Complementary Operation of Wind-PV-Hydro 1 Introduction 2 Resource Relevance Analysis on Scenarios 3 Coordinated Planning Model 3.1 Objective Function 3.2 Constraints 3.3 Solution Method 4 Case Study 5 Conclusion References Modeling and Dynamic Inertia Evaluation of DC Microgrid Integrated with Type 4 Wind Turbine 1 Introduction 2 Modeling of the DC Microgrid Integrated with Type 4 Wind Turbine 2.1 System Configuration 2.2 Phase Motion Equation Based Modeling Method 2.3 Modeling of the DC Microgrid in Integrated with Type 4 Wind Turbine 3 Dynamic Inertia Evaluation for DC Microgrid Integrated with Type 4 Wind Turbine 3.1 Inertia Evaluating Method 3.2 Derivation of Inertia Function 4 Simulink Verification 5 Conclusions Appendix A Appendix B References Application of FEA to Analyse the Seismic Response of Converter Valve Tower 1 Introduction 2 Finite Element Model 2.1 Converter Valve Model 2.2 Material Science 2.3 Constraints 2.4 Finite Element Model of Converter Valve Tower 2.5 The Load 3 Analysis of Calculation Results 3.1 Overall Stress and Strain 3.2 Modal Analysis 3.3 Seismic Response Spectrum Analysis 4 Conclusion References Small Signal Synchronous Stability Analysis of Grid-Connected VSC in Weak Grid 1 Introduction 2 Analysis of Synchronous Stabilization Mechanism of Single-Converter Grid-Connected System with Small Disturbance 2.1 Single-Converter Infinity System Control Loop Interactions 2.2 Analysis of Synchronous Stabilization Mechanism of Grid-Connected Converter with Small Disturbance 3 Analysis of the Influence of System Parameters on the Stability of Small Signal in Grid-Connected Converter Systems 3.1 Effect of PLL Bandwidth on System Stability 3.2 Effect of Current Loop Bandwidth on System Stability 4 Conclusion References SISO Impedance-Based Stability Analysis Method for PLL-Based Power Converters in Weak AC Grids 1 Introduction 2 Impedance-Based Modeling of GCS 3 Equivalent Model for Adaptation Analysis 3.1 Constructing Equivalent SISO System 3.2 Structural Features of Equivalent SISO System 3.3 Robustness of Equivalent SISO System 4 Small Signal Stability Analysis 4.1 Robustness Analysis 4.2 Adaptive Verification of Loop Shaping 5 Conclusion References Coordinated Planning of “Generation-Grid-Storage” for Receiver-End Power Grid Considering Resilience Improvement 1 Introduction 2 Failure Model of the Receiver-End Power Grid Under Typhoon 2.1 Typhoon Model Based on Parameter Fitting 2.2 Transmission Channel Failure Model 2.3 Process for Selecting Failure Scenarios 3 Generation-Grid-Storage Coordinated Planning Model Considering Resilience Enhancement 3.1 Wind Turbine Shutdown Model 3.2 Transmission Grid Restructuring Model 3.3 Energy Storage Operation Mode and Life Cycle Cost 3.4 Generation-Grid-Storage Coordinated Planning Model 4 Case Study 4.1 Improved IEEE14 System Parameters 4.2 Typhoon Parameters 4.3 Planning results analysis 5 Conclusion References Dynamic Equivalent Model of Active Distribution Network Based on Improved Reinforcement Learning Algorithm 1 Introduction 2 Dynamic Equivalent Model for ADN 2.1 Equivalent Direct-Drive Wind Turbine 2.2 Equivalent Photovoltaic Power Generation 2.3 Equivalent Comprehensive Load 3 Online Identification 3.1 Improved Reinforcement Learning Algorithm 3.2 Equivalent Model Parameter Identification 3.3 Online Evaluation 4 Case Analysis 4.1 Simulation System 4.2 Result Analysis 5 Conclusion References An Improved Security Assessment Method for Integrated Energy System Based on Load Cut Set and Network Equivalence 1 Introduction 2 Load Cut Set and Network Equivalence 2.1 Steady-State IES Model 2.2 Load Cut Set 2.3 Network Equivalence 3 Case Study and Security Assessment Process 3.1 Case Study 3.2 Security Assessment Process 4 Conclusion References Markov Chain Monte Carlo Cubature Particle Filter for Unbalanced Distribution System State Estimation 1 Introduction 2 State Space Model for Unbalanced Distribution System 2.1 State Space Model 2.2 State Process Model 2.3 State Measurement Model 3 Dynamic State Estimation Based on MCMC-CPF 3.1 Dynamic State Estimation Based on CPF 3.2 Construction of Proposal Distribution Based on CKF 3.3 Diversity Preservation Based on MCMC Sampling 3.4 Flowchart of MCMC-CPF 4 Case Study 4.1 Performance Evaluation 4.2 Results and Discussion 5 Conclusion References Real-Time Scheduling Strategy of Electric Vehicle Load Aggregation Quotient Based on Incentive and Price of Demand Response 1 Introduction 2 Based on Demand Response Incentive and Price Regulation Strategy Framework 2.1 Incentive Scheduling Model 2.2 Price Scheduling Model 2.3 Charging Demand Model 3 LPC Scheduling Strategy Based on Incentive and Price 3.1 Objective Function 3.2 Restrictions 4 Model Solving 5 Case Analysis 5.1 Result Analysis 6 Conclusion References Design and Simulation of Control Law in a Common Axis Double Rotor Unmanned Helicopter 1 Introduction 2 Establishment and Linearization of Mathematical Model 2.1 Define Coordinate System 2.2 Force Analysis 2.3 Model Linearization 3 Flight Control Law Design 3.1 Control Strategy 3.2 Lateral Control Law Design 3.3 Design of Heading Inner Loop Control Law 4 Prototyping and Simulation 5 Summary References Calculation of Voltage Stability Margin Considering Volt/Var Control Types of Photovoltaic Power Plants 1 Introduction 2 Continuous Power Flow Calculation Considering Volt/Var Control Type of Photovoltaic Power Plant 2.1 Parametric Power Flow Equation Considering Volt/Var Control Type of Photovoltaic Power Plant 2.2 Continuous Power Flow Calculation 3 Case Study 4 Conclusion References Multi-objective Capacity Optimization Allocation of Wind-Photovoltaic Coupling Hydrogen Production System Considering TOU Price 1 Introduction 1.1 Instructions for Authors 2 System Structure and Mathematical Model of Microgrid 2.1 System Structure 2.2 Mathematical Model 3 Optimal Configuration Model of Microgrid 3.1 The Objective Function 3.2 The Constraint 4 Operation Control Strategy and Model Solving Method of Microgrid 5 The Example Analysis 5.1 Typical Simulation Scenario 5.2 Parameter Settings 5.3 Analysis of Optimization Results 5.4 Impact of the Weight Coefficient on the Optimal Capacity Configuration 6 Conclusion Attached Drawing References An Improved Method for Combining the Power Station Operation Modes Based on the Variation Trend of the Power Source Contribution Coefficient 1 Introduction 2 Discussion on Operation Mode Combination in EHV Transmission Line Setting Calculation 2.1 Protection Principle Application of the EHV Relay Protection Device 2.2 Requirements for Power Station Operation Mode Combination in Different Protection Principles 3 Influence of Station Location on PSAIC and the Iterative Problem of Power Source Contribution Coefficient Method 3.1 Influence of Power Station Location on PSAIC 3.2 General Implementation Process and Iteration Problem of Power Source Contribution Coefficient Method 4 Improved Power Station Operation Mode Combination Method Based on the Variation Trend of PSCC 4.1 Clustering Error Judgment Based on PSCC Variation Trend 4.2 Improved Operation Mode Combination Method Based on Clustering Results 4.3 Implementation Process 5 Simulation Case Analysis 6 Conclusion References Electricity Retail Plan Recommendation Method Based on an Improved Non-negative Latent Factor Model 1 Introduction 2 Similar Customers Discr