电力系统自动化2012，Vol.36Issue(14)：11-16,35,7.
基于保护元件与PMU数据多源的广域后备保护算法
Wide-area Backup Protection Algorithm Based on Multi-source Data of Protection Elements and Phasor Measurement Units
摘要
Abstract
In order to improve the correctness and fault-tolerance of wide-area backup protection, a novel wide-area protection algorithm using traditional protection components and phasor measurement unit （PMU） data is proposed. Firstly, the online obtained protection components are weighed to get the comprehensive judgment value. Then a Gaussian function is used to get the fault probability. At the same time, using the amplitude of positive sequence voltage and phase angle difference of positive- sequence currents within a line, the probability from PMU is also obtained. These two probabilities are weighted comprehensive to find the fault component. The limit digit number of wide-area backup protection is analyzed theoretically. The simulation tests based on IEEE 14-bus system illustrate the effectiveness and high fault-tolerance capability of the algorithm with the mis-operation and refuse-operation of multiple protections, as well as the detection of multiple faults.关键词
广域后备保护/相量测量单元/多源/加权综合Key words
wide-area backup protection/phasor measurement unit (PMU)/multi-source/weighted comprehensive分类
交通工程引用本文复制引用
童晓阳,王睿,孙明蔚..基于保护元件与PMU数据多源的广域后备保护算法[J].电力系统自动化,2012,36(14):11-16,35,7.基金项目
中央高校基本科研业务费专项资金资助项目（SWJTU09ZT10）~~ （）
