Load Frequency Control of Hybrid Power Systems via Active Disturbance Rejection Control (ADRC)

Abstract

This paper studies the load frequency control (LFC) problem for hybrid power system (HPS) with renewable energy technology. The goal is to attenuate the frequency deviation due to changing load demand, fluctuating wind and varying solar radiation. Two typical HPSs are considered in the paper: one with abundant wind energy and the other with solar energy. Active disturbance rejection control (ADRC) method is used to design the load frequency controller. Simulation results show that ADRC provides higher reliability and stability for the studied HPSs than conventional PI control.