电力系统自动化2018，Vol.42Issue(1)：91-97,7.DOI:10.7500/AEPS20170512004
暂态功角弱稳定模式辨识及其协调紧急控制策略
Weak Stability Mode Identification of Transient Power Angle and Its Emergency Control Strategy
摘要
Abstract
In concern of the instability of the complex transient power angle during the developing process of power grid,a concept of weak stability mode of transient power angle and its identification method are proposed to analyze and control the safety and stability of power system.The mechanism of weak stability mode evolving into dominant instability mode which is caused by the emergency control and its approximate necessary conditions are analyzed.Based on the theoretical analysis,a mathematical model of emergency control based on the transformation of system transient stability constraints is presented. Then a heuristic coordination emergency control strategy based on the dynamic sensitivity index is designed.The adaptability of emergency control algorithm to deal with the complex transient instability is improved and the automatic coordination control method to balance the multiple weak stability modes of power system transient power angle is realized.An example based on the actual grid is used to demonstrate the effectiveness of the presented mechanism of negative effects caused by the emergency control and the presented strategy search algorithm.关键词
暂态功角稳定/稳定模式/紧急控制/稳定裕度/负效应Key words
transient power angle stability/stability mode/emergency control/stability margin/negative effect引用本文复制引用
崔晓丹,张红丽,方勇杰,李碧君,李威,牛拴保..暂态功角弱稳定模式辨识及其协调紧急控制策略[J].电力系统自动化,2018,42(1):91-97,7.基金项目
国家重点研发计划资助项目(2017YFB0902000) （2017YFB0902000）
国家电网公司科技项目"基于安全域的电网安全稳定评估及辅助决策技术研究".This work is supported by National Key R&D Program of China(No.2017YFB0902000) and State Grid Corporation of China.本文研究工作受到国家电网公司西北分部项目"酒湖特高压直流及准东特高压直流投运后的运行控制方案研究及应用"资助,在此表示感谢. （No.2017YFB0902000）
