Research on AGC of two area interconnected power system based on MPC

This paper proposes to use centralized model predictive control (CMPC) instead of the traditional PI control, to build the new AGC system for interconnected power system. With consideration of the constraint of power change rate of generators, the control system uses the dynamic state equation of interconnected power system for prediction model of CMPC, and takes the variation of governor as the input and the load variation as disturbance inputs. And the frequency variation of regions, tie-line exchange power and the area control error (ACE) are taken as predictive outputs. In Matlab/Simulink simulation platform, a CMPC controller, which sets tie line bias frequency control as control objectives, is designed for the AGC of an interconnected power system. The results prove that the AGC system which uses the proposed method performs better in dynamic response and has more excellent robustness.