Fault location method of 10 kV distribution metwork based on multi terminal traveling wave
Due to the failure to determine the fault section during the fault localization of 10 kV distribution network lines,the error rate of fault localization is high and the localization effect is poor.Therefore,a fault localization method based on multi terminal traveling waves for 10 kV distribution network lines is proposed.By calculating the line parameters and the traveling wave frequency,the traveling wave characteristics of the distribution network are obtained,and the fault distance matrix of the 10 kV distribution network line is constructed to determine the fault section.According to the section determination results,combined with the fault traveling wave positioning principle,the distance of the fault point of the distribution network line is calculated,and the fault location of the 10 kV distribution network line is based on the calculation results.The experimental results show that the error rate between the proposed method for fault location of 10 kV distribution network lines and the preset results is less then 6%,which can effectively improve the accuracy of distribution network line fault location and achieve good positioning results.
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