配电网继电保护相关问题的探讨  

Discussion on Correlated Problems of Distribution Network Relay Protection

作　　者：唐金凤[1] 聂一雄[1] 武小梅[1,2] 林伟[3] 

机构地区：[1]广东工业大学自动化学院,广东广州510006 [2]华南理工大学电力学院,广东广州510640 [3]广东电网公司湛江供电局,广东湛江524005

出　　处：《广东电力》2014年第5期51-55,共5页Guangdong Electric Power

基　　金：广东省绿色能源技术重点实验室资助项目(2008A060301002);广东电网公司科技项目(K-GD2012-218)

摘　　要：配电网的继电保护对供电质量有着根本性的影响。首先介绍了目前配电网采用的继电保护;然后分析配电网的故障特点,配电网存在的小电流接地故障选线定位困难、高阻故障保护和重合闸技术等问题,并对这些问题的研究现状进行综述;最后分析了分布式电源接入配电网对保护的影响,并展望未来配电网的继电保护发展趋势。Relay protection of distribution network has essential impact on power supply quality. This paper firstly introduces relay protection used for present distribution network and then analyzes fault characteristics of the distribution network and problems such as difficulty in route selection and positioning for small current grounding fault, high resistance fault protection and reclosing technology. Meanwhile, it summarizes study status quo of these problems. At last, it analyzes impact of distributed power source connecting with distribution network on protection and expects development trend of relay protection of distribution network in the future.

关 键 词：继电保护 小电流接地故障 高阻故障 分布式电源 

分 类 号：TM773[电气工程—电力系统及自动化]