The Proceedings of 2023 4th International Symposium on Insulation and Discharge Computation for Power Equipment (IDCOMPU2023) : Volume III

• Autore: Dong Xuzhu
• Pubblicazione: Singapore : , : Springer Singapore Pte. Limited, , 2024; ©2024
• Edizione: 1st ed.
• Descrizione fisica: 1 online resource (682 pages)
• Altri autori: CaiLi
• Nota di contenuto: Intro -- Contents -- Simulation and Experimental Study of Temporary Grounding Potential Distribution in Power Engineering -- 1 Introduction -- 2 Simulation Calculation of Horizontal Dimension Dispersion Characteristics -- 3 Simulation Calculation of Vertical Dimension Dispersion Characteristics -- 4 Simulation Calculation of Dispersing Current Optimization of Temporary Grounding Device -- 5 Simulation Experiment -- 6 Conclusion -- References -- Study on Lightning Dispersion and Breakdown Protection of Corrosion Protection Layer in Soil Adjacent to Buried Metal Pipeline -- 1 Introduction -- 2 Lightning Strike Dispersion Modelling and Calculation -- 3 Simulation Models and Parameters -- 4 Soil Vertical Dispersion Optimization -- 5 Conclusion -- References -- Study on Dispersion Characteristics and Drag Reduction Efficiency of Transmission Line Tower Fractal Epitaxial Grounding -- 1 Introduction -- 2 Fractal Theory and Model Establishment -- 2.1 Fractal Theory -- 2.2 Model Establishment -- 3 Calculation and Analysis of Grounding Characteristics of Fractal Epitaxial Grounding Grid -- 3.1 The Influence of Angle on Grounding Characteristics -- 3.2 The Influence of Fractal Dimension on Grounding Characteristics -- 3.3 The Influence of Fractal Layers on Grounding Characteristics -- 4 Comparison Between Fractal Epitaxial Grounding Grid and Typical Grounding Grid -- 5 Conclusion -- References -- Research on Resistance Reduction Method of Transmission Line Tower Epitaxial Grounding Based on Slope Soil Nailing Wall -- 1 Introduction -- 2 Analysis of the Influence of Different Factors on the Effect of Soil Nail Wall Assisted Resistance Reduction -- 2.1 Analysis of the Influence of the Number of Connection Lines -- 2.2 Analysis of the Influence of Connection Position -- 2.3 Analysis of the Influence of the Connection Lines Material. ; 2.4 Analysis of the Influence of the Location of the Pole Tower Grounding Grid -- 3 Conclusion -- References -- A Novel Detection Method for Interface Defect Development of High-Speed Train Cable Terminal -- 1 Introduction -- 2 Case Analysis -- 3 Simulation Study -- 4 Simulation Results -- 5 Experiments and Test Results -- 6 Conclusion -- References -- A 3D Modeling Method for Substations Based on Oblique Photography -- 1 Introduction -- 2 Data Acquisition -- 2.1 Study Area and UAV Selection -- 2.2 Route Design and Image Acquisition -- 3 3D Reconstruction -- 3.1 Aerial Triangulation -- 3.2 Triangulated Irregular Network Construction -- 3.3 Texture Mapping -- 3.4 3D Model of Substation -- 4 Conclusion -- References -- Simulation Study on Motion of Metal Particles During Translation of Flat Plate Electrode -- 1 Introduction -- 2 Simulation Model -- 2.1 Insulation Oil Flow Model -- 2.2 Metal Particle Motion Mode -- 2.3 Solid-liquid Two-Phase Flow Model -- 3 Simulation Results -- 3.1 Simulation Results of Fluid Motion -- 3.2 Simulation Results of Metal Particles Motion -- 4 Conclusion -- References -- The Effect of the Number of Wire Electrodes on the Performance of Wire Plate Electrostatic Precipitators -- 1 Introduction -- 2 Numerical Simulation and Result Analysis -- 2.1 Simulation Module -- 2.2 Simulation Results -- 3 Experiments and Results Analysis -- 3.1 Experimental Setup and Test Methods -- 3.2 Experimental Results -- 4 Conclusion -- References -- The Effect of Inflation Pressure on the Dielectric Recovery Strength of SF6 Circuit Breakers -- 1 Introduction -- 2 Simulation Models and Calculation Methods -- 2.1 Arc Model -- 2.2 Calculation Model for High Voltage Circuit Breakers -- 2.3 Valve Plate Motion Model -- 2.4 SF6 Thermal Critical Breakdown Field Strength -- 2.5 Calculation Method for Recovery Strength of Post Arc Dielectric. ; 3 Calculation Results of Electric Breakdown Characteristics -- 4 Conclusion -- References -- Investigation on Very Fast Transient Overvoltage Caused by Incomplete Separation of Air-Insulated Switches -- 1 Introduction -- 2 Description of Failure Caused by Incomplete Separation of DS -- 3 Mathematical Model -- 4 Simulations Study -- 5 Results and Discussion -- 5.1 Influence of Main Transformer Inlet Line -- 5.2 Influence of Residual Charge -- 6 Introduction -- References -- The Prediction of the Dielectric Breakdown Properties of 6% C4F7N-94% CO2 Mixtures at 300-4000 K and 0.1-3.2 MPa -- 1 Introduction -- 2 The Method of Calculation -- 3 Results and Discussion -- 3.1 αeff and the (E/N)cr in 6% C4F7N-94% CO2 Mixture at Room Temperature -- 3.2 αeff and the (E/N)cr in 6% C4F7N-94% CO2 Mixtures at High Temperature -- 4 Conclusions -- References -- Study on Arc Extinguishing Capability of HFO-1336mzz(E)/CO2 as SF6 Substitute Gas -- 1 Introduction -- 2 Simulation Model -- 3 Physical Parameter -- 4 Simulation Result Analysis -- 5 Conclusion -- References -- Calculation of Thermodynamic Properties and Transport Coefficients of C4F7N-PTFE Mixtures -- 1 Introduction -- 2 Calculation Principle and Method -- 3 Comparison and Analysis of Calculation Results -- 3.1 Plasma Composition -- 3.2 Thermodynamic Properties -- 3.3 Transport Properties -- 4 Discussion -- 5 Conclusion -- References -- A Physics-Informed Neural Network Model for Temperature Inversion of Axisymmetric Gas Discharge Channel -- 1 Introduction -- 2 Methodology -- 2.1 Dataset -- 2.2 PINN Network -- 2.3 Train -- 3 Results -- 3.1 Performance Under Noise-Free Condition -- 3.2 Performance in Various Noise Condition -- 4 Conclusion -- References -- Lightning Risk Assessment of 330 kV Transmission Line Under Icing Conditions in Qinghai Area -- 1 Introduction. ; 2 Calculation of Lightning Icing Line Related Parameters -- 2.1 Icing Thickness Calculation Model -- 2.2 Leader Model of Iced Insulator -- 3 Calculation of Lightning Icing Line Related Parameters -- 3.1 Counterattack Trip Rate -- 3.2 Shielding Failure Trip-Out Rate -- 3.3 Lightning Risk Classification Standard -- 4 Case Study -- 4.1 Analysis of Risk Assessment Results -- 5 Conclusion -- References -- Arc Radiation Characteristics of CO2-O2 Mixtures at 0.1-0.8 MPa and 300-30,000 K -- 1 Introduction -- 2 Calculation Method -- 2.1 Plasma Composition -- 2.2 NEC Method -- 3 Results and Discussion -- 3.1 Plasma Composition -- 3.2 NEC Results -- 4 Conclusion -- References -- Arc Interruption Performance of SF6/N2 Gas and Dielectric Recovery in Disconnector -- 1 Introduction -- 2 Simulation Model and Calculation Method -- 2.1 MHD Model -- 2.2 The Geometric Model of Disconnector -- 2.3 Calculation of Critical Breakdown Field Strength -- 2.4 Evaluation of the Dielectric Strength Performance of Gas Mixture -- 3 Simulation Results and Analysis -- 3.1 The Distribution of the Physical Field -- 3.2 The Calculation of Critical Breakdown Voltage -- 4 Conclusion -- References -- Analysis of Fluid Velocity and Temperature Variation Characteristics in Boundary Layer of Transformer Wall -- 1 Introduction -- 2 Simplified Analysis Model of Boundary Layer on Transformer Wall -- 2.1 Simplified Analysis Model -- 2.2 Temperature Fluid Field Control Equation -- 2.3 Boundary Conditions -- 2.4 Material Parameters -- 3 Distribution of Temperature and Fluid Field in Boundary Layer of Transformer Wall -- 3.1 Classification of Fluid Boundary Layer -- 3.2 Impact of Inlet Flow Velocity -- 3.3 Impact of Inlet Flow Temperature -- 3.4 Impact of External Ambient Temperature -- 3.5 Impact of External Heat Transfer Convective Coefficient -- 4 Conclusion -- References. ; Study on Magnetic Leakage Device Parameters Suitable for Crimping Defects of Carbon Fiber Composite Core Conductor -- 1 Introduction -- 2 Finite Element Theory of Magnetic Flux Leakage Detection -- 3 Simulation Model -- 4 Simulation Analysis -- 4.1 Permanent Magnet Size Selection -- 4.2 Influence of Magnetic Pole Spacing and Radial Air Gap -- 4.3 Case Verification -- 5 Conclusion -- References -- Simulation of Arc Breaking in a 550 kV 80 kA SF6 Circuit Breaker -- 1 Introduction -- 2 Circuit Breaker Simulation Model -- 2.1 Simulation Structure Model and Boundary Conditions -- 2.2 Arc MHD Model -- 3 Simulation Results and Analysis -- 3.1 Variation Characteristics of Temperature Field -- 3.2 Variation Characteristics of Pressure Field -- 4 Conclusion -- References -- Simulation and Design of Electric Field Distribution for the Incoming Conductor Between 330 kV Terminal Tower and 750 kV Substation -- 1 Introduction -- 2 Simulation Model and Electric Field Calculation -- 2.1 Model Building -- 2.2 Electric Field Calculation -- 3 Impact of Different Factors on the Surface Electric Field Strength of Incoming Conductors -- 3.1 Impact of Terminal Tower Width on the Electric Field Strength -- 3.2 Impact of the Distance Between the Terminal Tower and the Portal Frame on the Electric Field Strength -- 3.3 Impact of the Diameter of the Conductors on the Electric Field Strength -- 4 Conclusion -- References -- Research on X Ray Live Work of UHV Transmission Line by Helicopter -- 1 Introduction -- 2 Design of X Ray Live Detection Device for 1 Helicopter -- 2.1 Overall Structure of the Device -- 2.2 Equipotential Detection Tooling -- 2.3 Equipotential Control Terminal -- 3 Performance Test of X Ray Live Detection Device for 2 Helicopter -- 3.1 Electrical Performance Test -- 3.2 Mechanical Property Test -- 3.3 X Ray Shooting Test of Ultra-High Voltage Clamp. ; 4 Field Application.
• Titolo autorizzato: The Proceedings of 2023 4th International Symposium on Insulation and Discharge Computation for Power Equipment (IDCOMPU2023)
• ISBN: 981-9974-05-4
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Lingua di pubblicazione: Inglese
• Record Nr.: 9910799246403321
• Lo trovi qui: Univ. Federico II
• Serie: Lecture Notes in Electrical Engineering Series