Frequency Control of Hybrid Power System with Electric Vehicle SoC Estimation

In our work, the Load Frequency Control (LFC) of Hybrid Power System (HPS) is accomplished using a Fuzzy PIDF-based controller. The HPS comprises one unit of each of the following: solar, wind, fuel cell, diesel generator, battery energy storage, fly-wheel energy storage system, and Electric Vehicle (EV). To fine-tune the settings of a Fuzzy PIDF-based controller, a recently published approach called Pelican Optimization Algorithm (POA) is used. For frequency stabilisation of the HPS, a Fuzzy PIDF controller with the State-of-Charge (SoC) control of battery of EV is proposed in our work. When the HPS’s Frequency Deviation Response (FDR) is compared to the previous one, the effect of the SoC control is shown. The frequency response is substantially improved with the suggested control strategy, according to simulation findings. Additionally, this is supported by sensitivity tests on the modelled system and stability tests using bode plots.