电力系统自动化2011，Vol.35Issue(3)：49-53,5.
基于极性比较原理的广域行波保护方法
A Wide-area Traveling Wave Protective Method Based on Polarity Comparison Principle
摘要
Abstract
To improve the reliability of conventional protection using traveling waves, a wide area protection method based on polarity comparison of the first traveling wave is proposed. According to the transmission lines configuration and traveling wave protection relays (TWPRs) positions in a power grid, the line/TWPR associated matrices can be obtained. When a fault occurs in the power grid, fault associated matrices can be formed based on the first traveling wave polarity recorded by TWPRs and line/TWPR associated matrices, and then the fault line can be identified by the wide area traveling wave protective system based on the above information. It is worth noting that such protection can also be achieved even if certain TWPR breaks down, failure in start, or null traveling wave is recorded. Analysis and simulation results show that the proposed wide area traveling wave protection algorithm is simple and feasible.This work is supported by National Natural Science Foundation of China (No. 50577001) and the Program for New Century Excellent Talents in University (No. NCET-04-0781).关键词
行波保护/极性比较/初始行波/可靠性/关联矩阵Key words
traveling wave protection/ polarity comparison/ the first traveling wave/ reliability/ associated matrices引用本文复制引用
李泽文,郑盾,曾祥君,姚建刚,邓丰..基于极性比较原理的广域行波保护方法[J].电力系统自动化,2011,35(3):49-53,5.基金项目
国家自然科学基金资助项目(50577001) （50577001）
教育部新世纪优秀人才支持计划资助项目(NECT-04-0781). （NECT-04-0781）
