基于广域测量的系统电压崩溃点预测

许多文章对电力系统电压崩溃问题进行了研究 ,其中潮流分析的方法是最常见的 ,大都是以Q -V曲线为基础。近些年 ,越来越多的人认识到电力系统电压稳定问题是一个动态问题 ,而电压崩溃点是可以提前预知的。随着GPS(全球定位系统 )和PMU(向量测量单元 )的进一步应用 ,广域测量技术应用范围越来越广 ,其用在电力系统电压崩溃点的预测也将成为必然。本文以广域测量技术为辅助手段 ,根据功率边缘的概念 ,使用电压崩溃预测器来预测系统中电压崩溃点的位置

Predicting Voltage Collapse in Power Systems Based on Wide Area Measurements

Many papers have carry out so much research on voltage collapse in power systems, in which the method used mostly is the power flow analysis,and these methods are based on Q-V curve. These years, more and more power researchers have realized that voltage stability in power systems is a dynamic phenomenon, and voltage collapse point is predicted in advance. Wide area measurements technology is applied in the wider fields with the more applications of GPS (global position system) and PMU (Phasor measurement unit), so it is necessary that Wide area measurement technology is applied in the predicting of voltage collapse point in power systems. This paper proposes a design predicting the point of voltage collapse in power systems using an indicator, and this method is based on wide area measurements and the conception of power margin.