Load Frequency Control of Hybrid Power System with PIDD Controller in Presence of Electric Vehicles

Abstract

This paper provides the load frequency control (LFC) of an isolated hybrid power system (IHPS) with proportional-integral-double derivative (PIDD) controller to reduce the deviations in frequency profile. The IHPS consists of conventional and renewable power generating units along with storage devices. The power imbalances caused by load perturbations and solar generation are managed by conventional generating units and storage devices. Additionally, a large number of electric vehicles are incorporated into the system to study their impact in LFC studies. The PIDD controller is used in secondary LFC loop to fulfil the goals of LFC. The magneto tactic bacteria optimizer is used to tune the controllers gains of the IHPS with the help of new cost function which tracks the peak changes in the frequency deviations. Furthermore, the performance of the PIDD controller is compared with classical controllers to extract the benefits of the PIDD controller in LFC studies of IHPS in different perspectives.