Fo-pid controller design with sca for communication time delayed lfc

© 2020, International Organization on 'Technical and Physical Problems of Engineering'. All rights reserved.In this paper, Sine Cosine Algorithm (SCA) is proposed and applied to load frequency control (LFC) of different type single area power systems. Reheat turbine system without communication time delayed is considered for the first system. Power systems have communication time delays because of far remote units (FRUs’), communication channels (CCs’), delays between plant units and etc. Communication time delays (CTDs) have negative affect on reliability and stability of power systems. For this reason, non-reheat turbine system having communication time delayed is considered. Both systems are controlled by fractional order proportional-integral-derivative controller (FO-PID). This controller has five controllable parameters. Thus, it is very flexible and very effective controller. Analyzed single area power systems for LFC are compared with recent literature studies. Founded outputs are examined according to settling time (%0.005 band width), overshoot, undershoot and peak to peak values of frequency deviation signals. These outputs are demonstrated that system performances highly enhanced with proposed FO-PID controller and SCA method.