摘要
概述了母线差动保护的现状。针对电子式互感器对母线差动保护的影响、母线保护在内部故障时有汲出电流、数据失步等问题,提出了削波判据与插值拟合补偿法及相关保护配合措施。研究分析了四种不同原理母线保护算法,以此为基础,基于集成保护提出了信息融合与信息分权的母线保护综合算法。仿真及实验分析表明了算法的优势和对母线保护性能的提升。
This paper overviews the current status of bus differential protection, proposes peaks-cutting-criterion and interpolation fitting compensation method and relevant protection coordination measures in respect to the influence of electronic transformer on bus differential protection, and the problems of drain current, data loss, etc. when internal fault of bus protection occurs. Four kinds of bus protection algorithms are researched and analyzed, based on which, the bus protection comprehensive algorithm of information integration and information decentralization is presented based on integrated protection. Simulation and experimental analysis verify that this algorithm is superior, greatly improving the property of the bus bar protection.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2012年第21期125-131,共7页
Power System Protection and Control
基金
国家自然科学基金项目(50677003)
阿尔斯通-北京交通大学国际合作研究项目(R/T5.1.4-D)~~
关键词
母线保护
集成保护
削波判据
信息分权
综合算法
bus protection
integrated protection
peaks-cutting-criterion
information decentralization
comprehensive algorithm
