一种可用于大型电力系统数字仿真的复杂故障并行计算方法  

A PARALLEL COMPLEX FAULT COMPUTATION ALGORITHM FOR LARGE SCALE POWER SYSTEM DIGITAL SIMULATION

作　　者：李亚楼[1] 周孝信[1] 吴中习[1] 

机构地区：[1]中国电力科学研究院,北京100085

出　　处：《中国电机工程学报》2003年第12期1-5,共5页Proceedings of the CSEE

基　　金：国家973重点基础研究专项经费项目(G1998020322)~~

摘　　要：在电力系统在线动态稳定评估和实时数字仿真计算中,并行处理是一种极有发展前途的技术。复杂故障计算是电力系统仿真计算中最重要、计算量最大的部分之一,已经成为大型电力系统实时仿真的瓶颈。由于求解故障端口间等值阻抗的复杂性,传统方法不适用于并行处理。作者提出了一种可用于大型电力系统数字仿真的复杂故障并行计算方法。算法中采用了故障处理局部化、降维网络方程的构造和线性方程组并行处理等多种技术,以减少并行计算量和通讯量。在原有串行程序的基础上,作者在PC机 群上实现了复杂故障的并行算法。实际系统的计算结果表明,文中所提出的复杂故障并行计算方法是正确和有效的。Parallel processing is a well promising technology for on-line dynamic security assessment and real time digital simulation of power system. The complex fault computation in which a large mount of computation should be carried out is one of the most important parts in power system simulation, which has become the bottleneck in real-time simulation of large scale power system. Because of the complexity to calculate the equivalent impedances between the fault-buses, traditional methods are not suitable to parallel processing. Here, a parallel algorithm which can be used for complex fault computation of large scale power system is presented. To decrease the mount of computation and that of the communication, several calculation methods such as localizing fault processing, constructing the reduced network equations and parallel solution of linear equation are applied. On the base of existing serial program, the proposed parallel algorithm for complex fault computation is implemented by PC cluster, its lightness and effectiveness are verified by the simulation of practical power system.

关 键 词：大型电力系统 数字仿真 故障 并行计算方法 

分 类 号：TM743[电气工程—电力系统及自动化]