The conventional automatic fault section locating, which has traditionally been designed assuming the system to be radial, is no longer suitable for the system with distributed generation (DG). A matrix algorithm for fault location in complex multi-source distribution networks is put forward in this paper, which can locate both the multiple fault and the end fault. The algorithm is also suitable for the cases with incomplete information and information distortion. In addition, distribution networks with a special form of isolation switch is disposed. Test results show that the approaches proposed are both correct and feasible. Hence they have great potential for application in real-time fault location for distribution networks.%分布式发电(DG)接入配电网后,配电网变成了多电源复杂网络,传统的故障定位算法不再适用.本文提出了一种能解决多电源复杂配电网多重故障定位(可含有馈线末端故障)的矩阵算法.该算法对于故障信息不完备和故障信息畸变的情况同样适用.算例测试结果验证了该方法的正确性和可行性,在配电网实时故障定位的应用中具有很大的潜力.
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