微型电脑应用

探讨在正常运行情况下，对大电网继电保护中隐藏的故障，线路相关集会降低大停电事故的发生率。通过继电器的相关集，分析故障后的潮流转移问题，准确计算出继电保护中的隐藏故障，能有效降低大停电事故的出现率。以CEPRI 36节点系统为研究对象，进行MATLAB仿真分析。结果显示，基于线路相关集的隐藏故障算法的准确率高、计算时间短，优于以往的决策树法。基于线路相关集的隐藏故障算法还能准确找到隐藏故障点，为更加全面地制订大停电事故预防措施提供参考。

Under normal operation conditions, the effect of line correlation set on hidden faults in relay protection of large power network is discussed in order to reduce the incidence of blackout accidents. Through the correlation set of the fault line, the power flow transfer problem after the fault is analyzed, the hidden fault in relay protection is calculated accurately, and the occurrence rate of blackout accident is reduced effectively. Taking CEPRI 36 node system as the research object, MATLAB simulation analysis is carried out. The results show that the hidden fault algorithm based on line correlation set has high accuracy and short calculation time, which is superior to the previous decision tree method. Therefore, the hidden fault algorithm based on the line correlation set can accurately find the hidden fault point, and provide reference for the more comprehensive development of the blackout prevention measures.