变结构与参数电力系统中互感线路短路故障的快速计算

FAST CALCULATION OF SHORT CIRCUITS ON TRANSMISSION LINE WITH ZERO-SEQUENCE MUTUAL COUPLING IN POWER SYSTEM WITH VARIABLE STRUCTURE AND PARAMETERS

基于补偿原理,建立起变结构与参数电力系统中互感线路短路故障的各序网通用计算模型;根据叠加原理和互易定理,提出了一种既不需修改原网各序节点阻抗阵又不需修改故障所在互感组支路导纳阵,快速计算变结构与参数电力系统中互感线路短路故障的新方法。

Based on compensation theorem, a new method for calculating short circuits on a transmission line with zero- sequence mutual coupling in power systems with variable structure and parameters is developed. On this basis, according to superposition and reciprocal theory, a new method is presented for fast calculation of this kind of faults without modifying both the impedance matrices of each original sequence network and the admittance matrices of fauted branches with zero - sequence mutual coupling.