任意故障设置下的故障补偿电流计算

在综合阻抗矩阵的故障补偿算法的基础上,分析了线路非端点位置故障以及同一条线路多 重故障等复杂情况下的补偿电流计算。基于线性网络的基本理论,该算法通过补偿电流的分解以 及综合阻抗矩阵的扩展等网络变换方法,能够在复杂故障情况下保持网络的拓扑节点数不变,从而 保留故障补偿算法的优点。同时,该算法对任意故障设置下的故障补偿电流计算部具有规范统一 的形式,便于计算机编程实现,进一步提高故障计算的速度。

Calculation of Fault Compensating Current in the Condition of Arbitrary Fault Settings

On the basis of the compensating method for fault calculation based on the composite impedance matrix, further study is made on the complicated fault conditions of the fault positions not in the original nodes of the power system and the multi-faults in the same transmission line. According to the basic theory of the linear circuit, by applying the network transformation method for the fault compensating current decomposition and the composite impedance matrix expansion, the fault calculating method is capable of keeping the topological node number unchanged under any complicated faults conditions, thus retaining the convenience of the compensating method. The method proposed has a canonical form in the condition of arbitrary fault settings, which is suitable for computer analysis and further improving the calculating speed.