基于概率的最近电压崩溃临界点计算  

Computation of the Closest Bifurcations Using the Probabilistic Method

作　　者：张晓慧[1] 王克文[1] 

机构地区：[1]郑州大学电气工程学院,450001

出　　处：《电气应用》2007年第11期29-32,共4页Electrotechnical Application

基　　金：国家自然科学基金资助项目(50177028)

摘　　要：考虑负荷变化的不确定性和相关性,将静态电压稳定分析的直接算法引入到概率环境下,进行最近电压崩溃临界点的分析计算。以一段时间内的系统运行状态作为计算初始条件,负荷增长方式中包含了负荷之间的彼此相关性,计及了更多的负荷变化信息。对临界点的描述不再是传统的确定性表达,而是一定范围内的统计分布。Based on the uncertainty and correlation of load variation, the direct method for the static-state voltage stability analysis is introduced into the probabilistic environment for the determination of the closest collapse point. With system operational states in a period of time considered as the initial condition, more information, such as the correlation among loads, are taken into account in the load increasing mode. The description for the critical point will not be the conventional deterministic expression, but a distribution in certain range.

关 键 词：电压稳定 左特征向量 概率潮流 功率裕度 

分 类 号：TM744[电气工程—电力系统及自动化]