电力系统及其自动化学报2019，Vol.31Issue(2)：19-25,7.DOI:10.3969/j.issn.1003-8930.2019.02.004
多边界电压薄弱区域的电压稳定在线监测方法
Online Voltage Stability Monitoring Method for Multi-boundary Weak Area
摘要
Abstract
An online voltage stability monitoring method for a multi-boundary weak area is proposed in this paper. First, radial equivalent independent(REI)method is applied to convert the weak area into one fictitious bus equivalently based on buses on the boundary. Then,Kalman filter is applied to continuously calculate the Thevenin equivalent param?eters of the external system outside the weak area in real-time. Finally,voltage stability margin indices are proposed, which can online evaluate the voltage stability margin of the weak area in real time. Based on the simulation data of an actual provincial power grid using Power System Analysis Software Package(PSASP)and the measurement data of pha?sor measurement units(PMUs)in an actual fault scenario,the voltage stability margin in this area is calculated,and re?sults validate the feasibility and effectiveness of the proposed method.关键词
电压稳定/多边界/电压薄弱区域/在线监测/裕度指标Key words
voltage stability/multi-boundary/voltage weak area/online monitoring/margin index分类
信息技术与安全科学引用本文复制引用
李长城,王小君,张沛,朱小军,李登峰,陈涛..多边界电压薄弱区域的电压稳定在线监测方法[J].电力系统及其自动化学报,2019,31(2):19-25,7.基金项目
重庆市基础科学与前沿技术研究专项资助项目(cstc2017jcyjAX0033) （cstc2017jcyjAX0033）
重庆市教委科学技术研究资助项目(KJ1600428,KJ1600430). （KJ1600428,KJ1600430）
