电工技术学报2017，Vol.32Issue(7)：95-103,9.
基于支路电压方程的在线电压稳定指标
A New On-Line Voltage Stability Index Based on Voltage Equation of the Branch
摘要
Abstract
This paper proposes a new on-line voltage stability index based on the voltage equation of the branch.The proposed index has an explicit expression,which can be calculated with the on-line PMU data,and is suitable for online applications.First,the paper derives the index with the characteristic that the sensitivity of voltage to power tends to be infinite at the voltage collapse point.Then,it discusses the impacts of load characteristic on the proposed index,and the simulation results with the single-branch system reveals the adaptability of the proposed index to the static load.Furthermore,it presents the simulation results in multi-branch system to verify the effectiveness of the proposed index.Finally,it discusses the improvement to the proposed index with the equivalence method,and the enhancement of the effect of the improved index is verified with the simulation results in a 10-bus system.关键词
电压稳定指标/支路电压方程/灵敏度/在线应用Key words
Voltage stability index/the branch voltage equation/sensitivity/online application分类
信息技术与安全科学引用本文复制引用
薛安成,刘瑞煌,李铭凯,毕天姝,蒲天骄..基于支路电压方程的在线电压稳定指标[J].电工技术学报,2017,32(7):95-103,9.基金项目
国家自然科学基金资助项目(51477050,51190103). （51477050,51190103）
