CAJ | 학술논문

在确定故障关联域的基础上，提出一种基于故障相关度的故障定位方法。在电力系统正常运行时，列出系统网络对应的矩阵；当系统发生故障后，对各支路的故障相关度进行求解，通过检测并计算即可准确确定故障位置。该方法不仅可以确定故障线路的位置，还可以确定故障元件的位置，不用改变关联系数矩阵，克服了关联系数矩阵在发生故障后不确定的问题，不受过渡电阻和故障类型的影响，计算简单，定位准确。仿真结果表明：该方法可以准确地验证线路不同位置以及不同类型的故障。
재학정고장관련역적기출상，제출일충기우고장상관도적고장정위방법。재전력계통정상운행시，렬출계통망락대응적구진；당계통발생고장후，대각지로적고장상관도진행구해，통과검측병계산즉가준학학정고장위치。해방법불부가이학정고장선로적위치，환가이학정고장원건적위치，불용개변관련계수구진，극복료관련계수구진재발생고장후불학정적문제，불수과도전조화고장류형적영향，계산간단，정위준학。방진결과표명：해방법가이준학지험증선로불동위치이급불동류형적고장。
On the basis of determining a fault correlation region,this paper proposed a fault loca-tion method based on fault correlation degree.Under the normal condition of power system,a system network corresponding matrix was listed.When a fault occurred,the fault correlation de-gree of each branch was solved,a fault location can be accurately located through testing and cal-culation.This method can not only determine the location of the fault line,but also determine the specific location of the fault components without changing the correlation coefficient matrix. Thus,the uncertainty problem of the correlation coefficient matrix after fault could be over-comed.Meanwhile,the proposed method was not influenced by the transition resistance and fault types,and with high accuracy and easy calculation.Simulation results showed that this method can accurately determine fault location and fault type.