CTDAE & CTODE models and their applications to power system stability analysis with time delays  

作　　者：YU XiaoDan JIA HongJie WANG ChengShan 

机构地区：[1]Key Laboratory of Smart Grid of Ministry of Education,Tianjin University

出　　处：《Science China(Technological Sciences)》2013年第5期1213-1223,共11页中国科学（技术科学英文版）

基　　金：supported by Special Fund of the National Basic Research Program of China("973"Program)(Grant No.2009CB219701);National Natural Science Foundation of China(Grant No.51277128);State Grid Corporation of China(Grant No.SGCC-MPLG028-2012)

摘　　要：In this paper,two new models suitable for power system stability analysis with considering time delays are derived.They are constraint time-delayed ordinary differential equation model(CTODE model) and constraint time-delayed differential algebraic equation model(CTDAE model).In these two models,dimension of the time-delayed equation is significantly reduced so as to speed up the calculation efficiency.Detail derivations to their nonlinear and incremental linear forms are given.And,some of their good features are discussed.Finally,a typical time-delayed system and single-machine-infinite-bus system are selected to validate the new models through Lyapunov-Krasovskii criterion and eigenvalue locus tracing procedure.It reveals that some unnecessary calculations in the algorithm can be avoided to achieve higher efficiency based on new models.The new models and new criterion given in this paper are helpful to design wide area protectors for bulk power systems.

关 键 词：time delay power system CTDAE model and CTODE model TDAE model and TODE model 

分 类 号：TM712[电气工程—电力系统及自动化]