不同负荷模型在电压稳定分析中的分岔研究  

Bifurcation research about different load model used in voltage stability

作　　者：周雪松[1] 侯明[1] 马幼捷[1] 龚娟[1] 

机构地区：[1]天津理工大学自动化学院,天津300191

出　　处：《天津理工大学学报》2008年第2期70-72,共3页Journal of Tianjin University of Technology

摘　　要：本文采用连续潮流算法得到完整的平衡解流形和P-V曲线,在此基础上找出鞍结分岔点;鉴于电力系统常用微分-代数方程表示,提出基于完整平衡解流形进行奇异诱导分岔点的计算和搜索的方法;最后对于典型企业配电网进行分析,用不同的负荷模型来模拟实际负荷情况,从而搜索出系统的不同分岔点,对于全厂供配电的安全调度运行提供了可靠的信息.In this paper, the complete equilibrium solution manifold and P-V curves of power system are obtained by means of continuation power flow （ CPF）, then the saddle-onde bifurcation point cam be found easily. Power systems are often modeled as a set of differential- algebraic equations （ DAE）, so we also compute and search singularity- induced bifurcation points based on the complete equilibrium solution manifold. Finally, we use these methods to analyze the distribution grid of typical large factory. We use different load models to simulate real load characteristics, and then find different type bifurcation points. These conclusions can supply information which is useful for workers to operate the whole factory grid safely.

关 键 词：电力系统 连续潮流 鞍结分岔 奇异诱导分岔 负荷模型 

分 类 号：TM714[电气工程—电力系统及自动化]