一种静态电压稳定临界点的识别和计算方法  

APPROACH FOR IDENTIFICATION AND COMPUTATION OF STATIC VOLTAGE STABILITY CRITICAL POINT

作　　者：赵晋泉[1] 江晓东[2] 张伯明[1] 

机构地区：[1]清华大学电机系,北京市100084 [2]康奈尔大学

出　　处：《电力系统自动化》2004年第23期28-32,共5页Automation of Electric Power Systems

摘　　要：提出了一种用连续潮流技术识别和计算电压崩溃临界点的方法。电力系统静态电压稳定分析中,常见有鞍结型分岔点和约束诱导型分岔点。基于连续潮流的间接方法没有确定初值的困难,适合于负荷参数耦合的情形,易于识别约束型分岔点,从而适合于大型实际系统静态稳定临界点的计算。通过对中国一个实际地区系统的数值分析,表明文中所提方法是有效的。An identification and computation method of static voltage stability critical point by using the continuation method is presented. The saddle-node bifurcation point and the limit-induced bifurcation point are two kinds of the most frequent critical points in static voltage stability analysis of power systems. An indirect method such as the continuation power flow based computation method for voltage collapse point is suitable method since there is no difficulty of determining the initial point and it can handle cases of loads with the coupled parameters. The limit induced bifurcation points can easily be identified by use of the method. The numerical results of a practical power system in China show that the presented method is very effective.

关 键 词：电压稳定 连续潮流 鞍结型分岔点 约束诱导型分岔点 

分 类 号：TM744[电气工程—电力系统及自动化]