基于电力系统分析综合程序的限流方案综合评价方法  

A Power System Analysis Software Package Based Comprehensive Evaluation Method for Short-Circuit Current Limitation Strategy

作　　者：刘文颖[1] 但扬清[1] 朱艳伟[1] 李笑蓉[2] 沈卫东[2] 李群炬[2] 

机构地区：[1]华北电力大学电气与电子工程学院,北京市昌平区102206 [2]华北电力科学研究院有限责任公司,北京市西城区100045

出　　处：《电网技术》2011年第8期150-154,共5页Power System Technology

摘　　要：基于PSASP相关计算结果和模糊综合评价算法,开发了限流方案综合评价系统。详细介绍了其核心算法、结构、功能和数据接口。本系统采用判断矩阵分析法,构建判断矩阵,其最大特征值对应的特征向量经归一化后得出权重向量,使得权重的确定更具客观性。所采用的模糊综合评价算法综合考虑了短路电流水平、暂态电压安全、静态潮流分布和运行经济性之间的相互制约关系。通过模糊综合评价算法从可行限流方案集中确定最佳限流运行方案,能够对电网限流运行方案作出系统、客观、全面、定量的决策。最后以某区域电网为例验证了所开发系统的可行性和实用性。A comprehensive evaluation system for short-circuit current limitation strategy is proposed based on fuzzy comprehensive evaluation algorithm and related calculation results by Power System Analysis Software Package （PSASP）. The core algorithm, structure, functions and data interface of the proposed system are described in detail. By use of judgment matrix analysis, a judging matrix is constructed for the proposed system, and after the normalization of the eigenvectors corresponding to the maximum eigenvalues of the judging matrix the weight vectors are attained to make determination of the weights more objective. In the utilized fuzzy comprehensive evaluation algorithm the mutual restrictions among short-circuit current level, transient voltage stability, steady state power flow distribution and operational economy are taken into account. Using fuzzy comprehensive evaluation algorithm, the optimal short-circuit current limitation strategy is decided from the set of feasible current limitation schemes, thus a systemic, objective, overall and quantitative decision for the operation scheme with short-circuit current limitation strategy can be ＂made. The feasibility and practicality of the proposed system are verified by calculation results of an actual regional power network.

关 键 词：短路电流 网络分析法 模糊综合评价 电力系统 分析综合程序 判断矩阵 

分 类 号：TM77[电气工程—电力系统及自动化]