Linear Active Disturbance Rejection Control Approach for Load Frequency Control Problem Using Diminishing Step Fruit Fly Algorithm

Abstract

The diminishing step fruit fly optimization algorithm (DS-FOA) is employed to optimize the performance of the load frequency control (LFC) problem by employing the linear active disturbance rejection control (LADRC) approach. First of all, the LFC problem taking into account the case of a single generator supplying power to a single service area is presented. Second, the general LADRC solution to the problem is given, where the diminishing step fruit fly optimization algorithm (DS-FOA) is employed to optimize the performance of the system with the approach. Third, the performances of the system with the following three control approaches are compared, including the traditional PID control approach, the normal LADRC approach, and the DS-FOA optimized LADRC approach. With the proposed LADRC approach, the system performance is much better than that of the traditional PID controller, and a much better performance is achieved with the proposed DS-FOA optimized LADRC approach. The performance superiority of the proposed approach is also validated by the frequency domain analysis results given.