LEADER 01243nam a2200313 i 4500 001 991001237109707536 005 20020507185757.0 008 961104s1959 de ||| | ger 035 $ab10819769-39ule_inst 035 $aLE01309151$9ExL 040 $aDip.to Matematica$beng 082 0 $a515.93 084 $aAMS 30C 084 $aAMS 30C35 100 1 $aKoppenfels, Werner :$cvon$0536432 245 10$aPraxis der konformen Abbildung /$cWerner von Koppenfels, Friedemann Stallmann 260 $aBerlin :$bSpringer-Verlag,$c1959 300 $a375 p. :$bill. ;$c24 cm. 490 0 $aGrundlehren der mathematischen Wissenschaften = A series of comprehensive studies in mathematics,$x0072-7830 ;$v100 500 $aIncludes bibliography 650 0$aConformal mapping 650 0$aGeometric function theory 700 1 $aStallmann, Friedemann$eauthor$4http://id.loc.gov/vocabulary/relators/aut$0547814 907 $a.b10819769$b23-02-17$c28-06-02 912 $a991001237109707536 945 $aLE013 30C KOP11 (1959)$g1$i2013000064529$lle013$o-$pE0.00$q-$rl$s- $t0$u0$v0$w0$x0$y.i10926598$z28-06-02 996 $aPraxis der konformen Abbildung$91455897 997 $aUNISALENTO 998 $ale013$b01-01-96$cm$da $e-$fger$gde $h0$i1 LEADER 12366nam 22006135 450 001 9910799244203321 005 20240318104747.0 010 $a9789819974139 010 $a9819974135 024 7 $a10.1007/978-981-99-7413-9 035 $a(MiAaPQ)EBC31051486 035 $a(Au-PeEL)EBL31051486 035 $a(DE-He213)978-981-99-7413-9 035 $a(CKB)29510218700041 035 $a(OCoLC)1416747920 035 $a(EXLCZ)9929510218700041 100 $a20231230d2024 u| 0 101 0 $aeng 135 $aurcnu|||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 14$aThe Proceedings of 2023 4th International Symposium on Insulation and Discharge Computation for Power Equipment (IDCOMPU2023) $eVolume IV /$fedited by Xuzhu Dong, Li Cai 205 $a1st ed. 2024. 210 1$aSingapore :$cSpringer Nature Singapore :$cImprint: Springer,$d2024. 215 $a1 online resource (713 pages) 225 1 $aLecture Notes in Electrical Engineering,$x1876-1119 ;$v1103 311 08$aPrint version: Dong, Xuzhu The Proceedings of 2023 4th International Symposium on Insulation and Discharge Computation for Power Equipment (IDCOMPU2023) Singapore : Springer Singapore Pte. Limited,c2024 9789819974122 327 $aIntro -- 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. 327 $a5 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. 327 $a4.1 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. 327 $aResearch 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. 327 $a3.1 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. 327 $aThe Electric-Thermal Characteristics of 110 kV Transformer RIP Bushings Based on Electromagnetic-Thermal-Fluid Analysis. 330 $aThis book includes original, peer-reviewed research papers from the 2023 4th International Symposium on Insulation and Discharge Computation for Power Equipment (IDCOMPU2023), held in Wuhan, China. The topics covered include but are not limited to: insulation, discharge computations, electric power equipment, and electrical materials. The papers share the latest findings in the field of insulation and discharge computations of electric power equipment, making the book a valuable asset for researchers, engineers, university students, etc. 410 0$aLecture Notes in Electrical Engineering,$x1876-1119 ;$v1103 606 $aElectric power production 606 $aElectronics 606 $aElectrical Power Engineering 606 $aElectronics and Microelectronics, Instrumentation 615 0$aElectric power production. 615 0$aElectronics. 615 14$aElectrical Power Engineering. 615 24$aElectronics and Microelectronics, Instrumentation. 676 $a621.31 700 $aDong$b Xuzhu$01424888 701 $aCai$b Li$01585791 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910799244203321 996 $aThe Proceedings of 2023 4th International Symposium on Insulation and Discharge Computation for Power Equipment (IDCOMPU2023)$93871417 997 $aUNINA