Partially Decentralized Load Frequency Control of Multi-area Power Systems in Deregulated Environments

This paper studies partially decentralized control based on generalized predictive control for the load frequency control in deregulated environments. This method can decompose the complex interconnected power system into several subsystems. Compared with the decentralized control, it can take the coupling information into account, thus improve the performance of the control system but not make the design process too complicated. To implement the final controller in practice, the paper proposes to reduce generalized predictive control into PID control. The method is applied to a four-area interconnected power, Simulation results show that the proposed method is simple and can achieve better load rejection ability compared with the previous method.