A Rapid and Coordinated Control Strategy in Voltage and Damping System Oscillation Control of SVC

By controlling the Static Var Compensator SVC equivalent susceptance could control bus voltage in the steady-state operation and damp power oscillation in dynamic process of the system. But to achieve the two effects have certain constraints. In this paper, based on the design of the main control model of voltage control, through the two auxiliary control signals input the main control, voltage and damping power oscillation have achieved rapid and coordinated control. Through the bang-bang control of voltage control strategy, joining the fast over-ride to get away from the integral part of the main part, the control system achieved rapid response. In the auxiliary damping control, through collecting the declinational signal of power could generate control signal of damping system oscillation. The fast-override in Voltage-assisted control achieved actions through the auxiliary control signals of the damping control. Through the BPA software and parts of the actual data from China Southern Power Grid the Simulation results showed that the control strategy can achieve better voltage and damping power oscillation system control.