分布式电源对配电网自动重合闸的影响研究  

Distributed generation impact to distribution network's auto-reclosing

作　　者：邰能灵[1] 冯希科[1] 

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200240

出　　处：《电力科学与技术学报》2010年第1期21-26,共6页Journal of Electric Power Science And Technology

基　　金：教育部新世纪优秀人才支持计划(NCET-08-0356)

摘　　要：含分布式电源的配电网一般为双电源或多电源供电系统,需要对其重合闸方式进行研究,以保证设备安全.以含分布式电源的解列重合闸为例,对系统侧电源重合于永久故障形成的冲击电流进行分析.从机理上讨论了无压检定和同步检定的在含分布式电源系统中的应用.通过仿真验证了无压检定和同步检定重合闸后电流变化过程,并求出分布式电源并网时冲击电流最小的最佳重合闸时间.Distribution networks with distributed generation always presents as dual-power or multi-power supply system,the reclosing mode needs to be researched to ensure the equipments safe.This paper establishes disconnected reclosing system with distributed generation,and analyzes the impulse current when the distribution system recloses with permanent fault.The application of no-voltage test reclosing and the synchronization test reclosing device in the distribution network with distributed generation is investigated.Simulation results verified the no-voltage test and synchronization test reclosing current change processes.The optimal reclosing time is suggested considering reclosing distributed generation with minimum impulse current.

关 键 词：分布式电源 自动重合闸 配电网 最佳重合闸时间 冲击电流 

分 类 号：TM762.2[电气工程—电力系统及自动化]