Fuzzy logic based Vehicle to Grid Controller for Voltage Regulation in Distribution Network with Solar-PV Penetration

The intermittent behavior of Renewable Energy (RE) sources and the increasing prevalence of electric vehicle charging can adversely affect the voltage profiles in the local distribution networks. The issues can be addressed by introducing an effective bi-directional power flow control of Electric Vehicles (EVs). This paper presents a novel methodology to improve the voltage profile of Distributed Network integrated with Solar Photovoltaic (PV) & EVs using a Fuzzy Logic-Synchronous Reference Frame Theory (FLSRF) based control algorithm in Vehicle-to-Grid (V2G) technology. The novelty of the proposed control includes an EV source-based feed-forward block to adapt to the changes in charging and discharging currents. The control technique also considers the changes in grid voltage, load current, and DC link voltage to determine the gating pulses for the converter. The performance of proposed control technique has been established by simulating the changes in load and EVs availability in the MATLAB environment in accordance with IEEE 1547-2018 standards.