A Hybrid Energy System Based Ev Charging Station with Advanced Controller for Grid Power Quality Regulation

Abstract

A solar photovoltaic array, battery energy storage, diesel generator, grid-based island are four sources and electric vehicles (EVs) are loads in grid-connected and DG-connected modes are continuously charged. There is a Charging Station (CS)/Battery charger. The primary function of Charging Station is to charge an EV battery using a solar PV array and Battery energy storage (BES). The Charging Station will intelligently utilise the energy from the grid or DG set even if the battery is empty and the power of the PV system is not accessible. The power of DG units is constantly pulled to run at 80%–85% load in order to ensure excellent fuel efficiency at all load circumstances. In the absence of a mechanical governor, CS also regulates the voltage and frequency of the generator and accumulator. Additionally, it ensures that even with non-linear loads, the power taken from the mains or DG set has unity power factor. The grid/generator voltage and the common link voltage are synced to provide continuous charging. A PI, fuzzy logic controller and ANN is also used to analyse and reduce overall harmonic distortion on the Grid. Charging Station also manages active/reactive power transfers from cars to the grid, residences, and other vehicles to increase operational efficiency. There are tools for CS operation analysis and simulation.