Decentralized Load Frequency Control Using DE Optimized Linear Active Disturbance Rejection Controller for Multi-Area Power Systems

In this paper, design and performance analysis of differential evolution (DE) algorithm in tuning linear active disturbance rejection controller (LADRC) for load frequency control (LFC) of multi-area power systems is investigated. LADRC does not need a detailed mathematical model of the controlled plant and the performance is related to two tuning parameters. The problem is formulated as an optimization problem and DE is employed to search for the optimal controller parameters by minimizing the time domain objective function. Decentralized LFC design on a three-area power system shows that the proposed method is easy to apply for multi-area power systems and good damping performance can be achieved.