摘要
对极限诱导分岔产生的原因进行了分析,提出一种基于连续潮流的极限诱导分岔检测方法。该方法首先采用灵敏度法预估即将起作用的不等式约束条件;然后将此不等式约束转为等式约束,并将其作为连续变量引入潮流方程,精确地求解出结构变换点处的状态值;最后,利用所提出的3个判断准则对结构变化点进行检测,从而判断极限诱导分岔点的存在。在IEEE118节点系统上验证了该算法的正确性和有效性。
Based on analysis of the cause of limit induced bifurcation （LIB）, a method for detecting LIB using continuation power flow （CPF） method is presented. Firstly, a sensitivity method is used to predict the active inequality constraints, which are then transformed into equality constraints and included in the power flow equations as continuation variables to accurately calculate the states at the point of structural switch. Then, three proposed verification criteria can be used to check the structural switch point in order to verify the existence of LIB. The correctness and effectiveness of the proposed method is validated on IEEE 1l8-hus system.
出处
《电力系统自动化》
EI
CSCD
北大核心
2008年第18期35-38,共4页
Automation of Electric Power Systems
基金
高等学校优秀青年教师教学科研奖励计划资助项目(ZDXM03006)~~
关键词
连续潮流
极限诱导分岔
灵敏度预估
电压稳定
电力系统
continuation power flow
limit induced bifurcation
sensitivity prediction
voltage stability
power system
