Nonlinear Switched Dynamic Modeling and Emergency Control of Power Systems
This paper investigates the switched dynamic modeling and excitation control of multi-area power systems under emergency conditions,such as generator tripping and load shedding.First,a switched dynamic model for a three-machine multi-area power system is put forward.Then,the switched power system is transformed to its equivalent switched dissipative Hamiltonian system,based on which a switching excitation controller is constructed.Using the Hamiltonian functions of the subsystems as multiple Lyapunov functions,the stability of the closed-loop system under arbitrary switching path is analyzed.Simulation results demonstrate that the proposed switching controller can effectively improve the transient stability of the power system under emergency.
LIU Yanhong XIA Quanzhou DING Qingqing CHU Bing
School of Electrical Engineering,Zhengzhou University,Zhengzhou 450001,P.R.China Department of Electrical Engineering,Tsinghua University,Beijing 100084,P.R.China Department of Engineering Science,University of Oxford,Oxford OX1 3PJ,U.K
国际会议
The 30th Chinese Control Conference(第三十届中国控制会议)
烟台
英文
1-6
2011-07-01（万方平台首次上网日期，不代表论文的发表时间）