电力系统保护与控制2019,Vol.47Issue(1):166-176,11.DOI:10.7667/PSPC180362
提升距离保护抗过渡电阻能力的研究综述
Overview of research on distance protection against transition resistance
摘要
Abstract
As an important part of transmission line protection device, distance protection has been widely applied in high voltage and ultra-high voltage power grid. However, the existence of transition resistance seriously threatens the correctness of distance protection action, which may cause mal-operation or miss operation easily. In the light of the existing research results, firstly, this paper emphasizes the classification, configuration, setting principles and the influence of transition resistance on the performance of distance protection. Secondly, it summarizes the current research achievements of impedance relay, distance relay and ranging protection with resistance to transition resistance and analyzes the problems that may be faced in practical application. Thirdly, it discusses the development trend of distance protection based on the current situation of power grid and electrical technology, which hope to provide a reference for further research on the resistance to transition resistance of distance protection.关键词
距离保护/阻抗继电器/距离继电器/过渡电阻/不正确动作Key words
distance protection/impedance relay/distance relay/transition resistance/incorrect action引用本文复制引用
裘愉涛,马伟,丁冬,王昀昀,陈琦..提升距离保护抗过渡电阻能力的研究综述[J].电力系统保护与控制,2019,47(1):166-176,11.基金项目
国家电网公司总部科技项目资助(521104170012,521101180004) (521104170012,521101180004)