复功率注入空间的电力系统概率安全性指标研究  

Study of power system probability security assessment in complex power injection space

作　　者：赵文忠[1] 史军[1] 

机构地区：[1]河西学院机电工程系,甘肃张掖734000

出　　处：《山东大学学报（工学版）》2009年第6期135-138,共4页Journal of Shandong University（Engineering Science）

摘　　要：为弥补电力系统安全性分析存在的不足,对电力系统概率安全分析进行了研究.在复功率注入空间提出了一种反映电力系统概率安全性的指标模型,该指标模型在现有研究成果的基础上,考虑了无功功率注入和负荷中感应电动机比例不确定性的影响.同时,根据复功率注入空间动态安全域超平面的迁移特性,推导了指标简化计算方法.仿真计算表明,该指标能够全面反映电力系统的安全性状况,具有合理性.To make up for the shortage of the power system security analysis, the power system＇ s probabihstic safety analysis was studied. An indicator model was introduced which showed the probability of the power system security in the complex power injection space. The impact of the reactive power injection and the proportion of induction motor load in uncertainty were, considered at the base of existing research results. And according to the migration characteristics of the complex power dynamic security region into the space of hyperplane, the calculation method to simplify indicators was deduced. Simulation shows that the indicator is able to fully reflect the security situation of the power system, and it shows rationality.

关 键 词：复功率注入空间 动态安全域 概率安全性 感应电动机比例的不确定性 

分 类 号：TM712[电气工程—电力系统及自动化]