电网故障计算中零序多重互感线路的处理  

INFLUENCE OF MULTIPLE ZERO-SEQUENCE MUTUAL INDUCTIVE COUPLED TRANSMISSION LINES ON THE FAULT CALCULATION OF ELECTRIC NETWORK

作　　者：张言苍[1] 杨洪平[2] 郭征[3] 

机构地区：[1]国电南京自动化股份有限公司,江苏省南京市210003 [2]华北电力集团公司,北京市100053 [3]天津大学电气与自动化工程学院,天津市300072

出　　处：《电力系统自动化》2004年第21期89-91,共3页Automation of Electric Power Systems

摘　　要：按照故障计算和保护整定软件实际的编写顺序分别论述了在零序多重互感线路上发生故障时对所在互感组的处理、互感参数矩阵对节点导纳矩阵的贡献、不同运行方式下互感组的特殊处理以及求解互感组零序电流的方法,对于零序多重互感的考虑全面而灵活,该方法已经在大型故障计算和保护整定软件中应用,并且在各种情况下短路电流计算都正确,从而证明所述方法正确可行。According to the compiling sequence of the fault calculating and protective setting software, this paper describes the calculation of a mutual inductive group with fault, the contribution of the mutual inductive parameter matrix to the nodal admittance matrix, special calculation of a mutual inductive group in different operation modes and the calculating method of the zero-sequence current. The way of handling the mutual inductive group is comprehensive and flexible. This method has been used in a large-scale fault calculating and protective setting software. In all kinds of instances the short currents can be correctly calculated, proving that the method proposed is correct and feasible.

关 键 词：故障计算 零序互感 支路阻抗矩阵 节点导纳矩阵 

分 类 号：TM77[电气工程—电力系统及自动化]