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Measurement and Analysis of Overvoltages in Power Systems
Jianming Li (Author)
9781119128991, Wiley
Hardback, published 8 May 2018
384 pages
22.9 x 15.2 x 2.2 cm, 0.675 kg
Measurement and Analysis of Overvoltages in Power Systems Jianming Li, Professor, State Grid Corporation, China A combination of theory and application, this book features practical tests and analytical techniques comprehensively with engineering practicality as its focus. Based on years of research and industry experience, the author introduces many scientific research methods such as overvoltage simulation studies, dynamic simulation experiment platform development and application, and overvoltage pattern recognition. Readers will get a good grounding in the various sources of overvoltages in power systems, methods in on-line measurements as well as explanations of overvoltage formation mechanisms and monitoring analysis methods. •Systematically examines sources, online measurements, analytical techniques, and simulations of overvoltages, with an emphasis on engineering practicality •Presents practical engineering examples analyzing overvoltages and improving system operation, based on field experiments and data analysis •Features overvoltage simulations and waveform analysis in transmission systems Measurement and Analysis of Overvoltages in Power Systems is intended as an all-in-one guide for engineers and researchers in power systems engineering. It can be used as a reference text for graduate students and lecturers of electrical engineering.
Preface xiii 1 Overvoltage Mechanisms in Power Systems 1 2 Transducers for Online Overvoltage Monitoring 65 3 Online Overvoltage Monitoring System 99 4 Wave Process of Incoming Surges and Transient Response Characteristics 155 5 Typical Field Tests and Waveform Analysis in UHVDC Transmission Systems 213 6 Overvoltage Digital Simulation 231 7 Entity Dynamic Simulation of Overvoltages on Transmission Lines 301 8 Overvoltage Pattern Recognition in Power Systems 319 Bibliography 347
1.1 Electromagnetic Transients and Overvoltage Classification 1
1.2 Overvoltage Classification in Power Systems 14
1.3 Atmospheric Overvoltages 16
1.4 Switching Overvoltages 25
1.5 Power Frequency Overvoltages 47
1.6 Resonance Overvoltages 55
2.1 Overvoltage Transducers at Transformer Bushing Taps 65
2.2 Gapless MOA Voltage Transducers 72
2.3 Voltage Transducers for Transmission Lines 81
2.4 Full-Waveform Optical Online Monitoring Technology 93
3.1 Overview 99
3.2 The Structure of Overvoltage Monitoring Systems 102
3.3 Acquisition Devices of Overvoltage Monitoring Systems 103
3.4 Overvoltage Signal Transmission System 109
3.5 Overvoltage Waveform Analysis System 121
3.6 Remote Terminal Analysis System for Overvoltage Waveforms 123
3.7 Case Study of Online Overvoltage Measurements 125
3.8 Statistical Analysis of Overvoltages 151
4.1 Current State of Incoming Surge Research 155
4.2 Wave Process under Complex Conditions 156
4.3 Generation of Lightning Overvoltages on Electrical Equipment 169
4.4 Simulation of Incoming Surges in Substations 172
4.5 Influencing Factors of Substation Incoming Surges 174
4.6 Typical Waveforms of Substation Incoming Surges 187
4.7 Response Characteristics of Lightning Overvoltages Propagating in the Grid 196
4.8 Lightning Location System (LLS) 202
5.1 Waveform Acquisition and Analysis in Typical Tests 213
5.2 Typical Field Tests for the UHVDC Transmission System 219
6.1 Overvoltage Digital Simulation Software 231
6.2 Evaluation of Switching Overvoltages 232
6.3 Evaluation of Power Frequency Overvoltages 248
6.4 Evaluation of Atmospheric Overvoltages 258
6.5 Evaluation of Ferro-Resonance Overvoltages 267
6.6 Evaluation of Very-Fast Transient Overvoltages 280
6.7 Transient Calculation for UHVDC Transmission Systems 283
7.1 Overview 301
7.2 Modeling Methods for Transmission Line Lightning Channels 301
7.3 Verification of Simulated Transmission Line Lightning Channels 310
7.4 Dynamic Simulation Testing System 314
8.1 Selection of Characteristic Values 319
8.2 Time-Domain Characteristic Extraction 320
8.3 Wavelet Transform Analysis 322
8.4 Singular Value Decomposition (SVD) Theory 327
8.5 Characteristic Value Selection for Sorters 329
8.6 SVM-Based Transient Overvoltage Recognition System 331
8.7 Data Preprocessing 334
8.8 Parameter Selection and Optimization 336
8.9 Extraction and Modification of Field Waveform Parameters 342
Index 351
Subject Areas: Electronics & communications engineering [TJ]
