Study on the key buses to Power System Steady-state Voltage Stability
With the method of modal analysis,the full Jacobian according to the power system power flow equations is studied and a method to identify the suitable bus for loading shedding is proposed in this paper.The proposed method makes use of the participation factors corresponding to the active power,by which the structural characteristic of the power system nonlinearity is included.As a result,the effective bus where the load shedding should be used can be found.In order to show the effectiveness of the proposed method,the WSCC 9-bus power system is used as an example.The simulation results indicate that with the load shedding at the place where the proposed method decided,the voltage stability indices are considerably increased.The proposed method in this paper is effective.
Power system Small signal analysis Modal Analysis Participation factor Load shedding Steady-state stability
Qingsheng Li Dongfang Zhang Tao Xu
Power Grid Planning and Research Center,Guizhou Power Grid Corporation,Guiyang,550002,Guizhou Provin the College of Electrical Engineering,Guizhou University,Guiyang,550025,Guizhou Province,China
国际会议
沈阳
英文
1948-1951
2012-09-26（万方平台首次上网日期，不代表论文的发表时间）