【摘要】 利用故障诊断数学模型,在深入分析电网故障保护、断路器状态信息结构的基础上,提出了相应关联矩阵运算方法,以便快速、准确地找到故障元件;同时,利用保护和断路器信息的故障诊断解析模型,在数学上是一个无约束0～1整数规划模型.该方法克服了传统的数据存储手段,在节省计算机资源,提高运算速度方面具有一定的优势;同时,具有通用性,能够在保护或者断路器拒动作或误动作的情况下,仍能正确地处理故障区域判断问题.通过一个简单的电网结构图在几种不同的故障情况下的仿真实验,证明了所提出的矩阵算法是正确合理的.更多还原

【Abstract】 In this paper,after deeply analysing the information from circuit breakers and protective relays using arithmetic model when a fault occurred in power system,it proposed a new associated-matrix algorithm for quick and accurate diagnosis.The well-developed parsimonious set covering theory was applied to the fault-section estimation problem,and a 0～ 1 integer programming model was obtained.The proposed method is versatile and can deal with uncertainties in fault-section estimation,such as protective relay failures and/or malfunction and circuit breaker failures and/or malfunction.The method proposed have advantages on processing speed and saving computer space.The results of simulation calculation examples show that the presented mathematical algorithm is feasible and efficient.更多还原