Model Predictive Coordinated secondary voltage control of power grids

In this paper Model Predictive Control (MPC) algorithm is applied to control, in a coordinated way, the voltage of some sensitive buses of the power network, called pilot nodes. A linear model of partitioned power system is first obtained by state-space system identification as the system model for MPC. Based on the measured voltage at pilot nodes, the centralized secondary MPC controller changes the reactive power injected to the pilot nodes so that voltage deviation of these buses is compensated and reaches its desired value defined by the tertiary level. The proposed method has been tested on the New England 39- bus network and compared with the case without any secondary voltage controller. The simulation results show the effectiveness of the proposed method.