A Numerical Study of the SVC-Controlled Electric Power System Dynamics

Der-Cherng Liaw, Jun-Wei Chen, Yun-Hua Huang

A numerical study of nonlinear dynamics for electric power system with the Static Var Compensator (SVC) control is presented in this paper. In the previous design (Liaw et al, 2009), we have proposed A sliding mode control (SMC) based output tracking scheme for regulating the load voltage of the electric power system. In this paper, we will extend the previous design to consider the effect of the load variation. The relationship between the time constant of SVC controller and the changing rate of load variation is obtained by using numerical study, which will then guarantee the success of the voltage tracking design with respect to the variation of both reactive power and real power.