Fault Location and Service Restoration for Electrical Distribution Systems

In–depth and systemic examination of distribution automation with specific focus on fault location and service restoration Focuses on the detailed and systemic examination of fault location and service restoration in distribution grid Arms the readers with a complete picture of what fault location and service restoration is from both theoretical and practical perspectives Presents the authors research on fault location and restoration for distribution systems since 1995 Introduces the first–hand application experience obtained from over 30 DAS (Distribution Automation System) projects in China Examines the protection approaches of electrical distribution networks automation and on relevant mechanisms associated to electrical supply restoration after (local) blackouts INDICE: Biographical .Preface .1 Progresses and Prospects of Fault Processing for Distribution Grids Liu Jian .1.1 Introduction .1.2 Progresses on Local Intelligence Based Fault Processing .1.3 Progresses on Distributed Intelligence Based Fault Processing .1.4 Progresses on Centralized Intelligence Based Fault Processing .1.5 Progresses on Single–Phase Grounding Fault Processing .1.6 Prospects .2 Fault Processing Based on Local Intelligence Tong Xiangqian and Liu Jian .2.1 Introduction .2.2 Fault Processing Based on Local Intelligence for Distribution Network .2.2.1 Auto–reclosing Control .2.2.2 Auto–put–into Control of the Reserve–source .2.2.3 Voltage Protection .2.2.4 Three–section Over–current Protection .2.2.5 Coordination between Current Relay protection and Auto–reclosure .2.2.6 Directional Over–current Protection .2.2.7 Longitudinal Current Differential Protection .2.2.8 Second Harmonic Braking Criterion in the Current Protection .2.3 FAULT Protection of Active Distribution Network .2.3.1 The Influence of Distributed Generation on Current Protection and the Adaptive Improvement of Protection .2.3.2 Influence of Distributed Generation on Auto–reclosure and its Adaptive Improvements .2.3.3 Longitudinal Current Differential Protection of DG Connected Distribution Network .2.4 coordination of multistage protection in distribution network .2.4.1 Time Difference based Coordination of Multistage Protection in the Distribution Network .2.4.2 The Coordination of Multistage Protection based on Three–section Over–current Protection in the Distribution Network .2.4.3 Coordination Modes and Setting Methods of Multistage Protection of Distribution Network .2.4.4 Example Analysis .2.5 Summary .3 Fault Processing Based on Distributed Intelligence Liu Jian, Xu Shiming and Chen Xingying .3.1 Introduction .3.2 FA Based on Recloser and Voltage–delay Type sectionalizers .3.3 Reclosing with Fast Over–current Protection Mode .3.4 Fast Healing Approach Based on Neighbor Communication .3.4.1 Basic principle .3.4.2 Improvements .3.5 Conclusion and Summary .4 Fault Processing Based on Centralized Intelligence Liu Jian and Chen Xingying .4.1 Introduction .4.2 Simplified Modeling of Distribution Grids .4.2.1 Distribution network structure .4.2.2 Simplified load flow analysis .4.3 Inter–phase Short Circuit Fault Location .4.3.1 Fault location with sufficiency information .4.3.2 Fault location with insufficiency information .4.3.3 Fault location for the distribution grids with DGs .4.4 Fault Isolation and Service Restoration .4.4.1 Fault isolation .4.4.2 Service restoration .4.4.3 Modeled service restoration .4.4.4 Coordination of the four types of service restoration .4.5 Conclusion and Summary .5 Single Phase to Ground Fault Processing Dong Xinzhou and Shi Shenxing .5.1 Types of Ground Fault and Protection Strategy .5.1.1 The neutral grounding mode and ground fault types .5.1.2 The protection strategies to different types of ground faults .5.2 Detection of High Resistance Ground Fault in Low Resistance Grounded Systems .5.2.1 High resistance ground faults .5.2.2 Zero sequence inverse–time over–current protection .5.2.3 Grounded protection based on the amplitude and phase of third harmonic current .5.3 Grounding Protection in the System with Neutral Isolated .5.3.1 Characteristics of single–phase–to–ground fault in the system with neutral isolated .5.3.2 Single–phase–to–ground protection in the grid with neutral isolated .5.4 Grounding Protection in the System with Neutral Grounded Through Arc Suppression Coil .5.4.1 Characteristics of single–phase–to–ground fault in the system with neutral grounded through arc suppression coil .5.4.2 Single–phase–to–ground protection in the system with neutral grounded through arc suppression coil .5.5 Single–Phase–to–Ground Fault Feeder Selection Technology in Power Distribution System with Neutral–none–Effectively Grounded .5.5.1 Comparison of magnitude and phase based single–phase–to–ground fault feeder selection method .5.5.2 Characteristics of single– phase–to–ground fault generated current traveling waves .5.5.3 Current travelling waves based fault feeder selection method .5.6 Prevention and Protection of Single–Phase–to–Ground Fault in Power Distribution Systems with Neutral none–Effectively Grounded .5.6.1 Basic principle of single–phase–to–ground fault prevention .5.6.2 Single–phase–to–ground fault prevention technology .5.7 Single–Phase–to–Ground Fault Location in the System with Neutral non–Effectively Grounded .5.7.1 single–phase–to–ground fault generated initial traveling wave .5.7.2 Single–phase–to–ground fault location method based on propagation speed of traveling waves .5.8 Conclusion and Summary .6 Practical Aspects of Fault Processing Liu Jian and Zhang Xiaoqing .6.1 Introduction .6.2 Coordination of Fault Processing Approaches .6.3 Planning of Terminal Units .6.3.1 Elements to affect the reliability of service .6.3.2 Benefit–cost analysis of action node planning .6.3.3 Planning the amount of terminal units to meet the requirement of reliability .6.4 Verification of the Property of Fault Processing .6.4.1 Master injection testing methodology and the testing tool .6.4.2 Secondary synchronous injection testing methodology and the testing facilities .6.4.3 Master and secondary synchronous injection testing methodology .6.4.4 Direct short–circuit test .6.4.5 Comparison of the four testing methodologies .6.5 Conclusion and Summary .Reference .Index

• ISBN: 978-1-118-95025-8
• Editorial: Wiley–Blackwell
• Encuadernacion: Cartoné
• Páginas: 300
• Fecha Publicación: 05/05/2016
• Nº Volúmenes: 1
• Idioma: Inglés