Design and Control of a Solar PV and Wind Energy Based EV Charging Station with Active Harmonic Mitigation for Three-Phase Grid Applications

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Chinese explanation / 中文解读

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Original abstract

This paper presents the design and control of a hybrid solar photovoltaic (PV) and wind energy based electric vehicle (EV) charging station with active harmonic mitigation for three-phase grid applications. The proposed system integrates a solar PV array, a permanent magnet synchronous generator (PMSG)-based wind energy conversion system, battery energy storage, and an EV charging station through a common DC-link to provide reliable and sustainable power. A DC–DC boost converter with maximum power point tracking (MPPT) is employed to maximize power extraction from the renewable energy sources, while a bidirectional DC–DC buck–boost converter regulates battery charging and discharging and maintains a stable DC-link voltage. A three-phase voltage source converter (VSC) connected through an LCL filter operates as a shunt active power filter using synchronous reference frame (SRF) control and hysteresis current control to compensate harmonic currents, provide reactive power compensation, and improve grid power quality. The coordinated control strategy enables effective power sharing among the renewable sources, battery storage, utility grid, and EV charging station under varying operating conditions. MATLAB/Simulink simulation results demonstrate improved renewable energy utilization, stable DC-link voltage regulation, efficient EV charging, reduced current harmonics, and enhanced overall system performance. The proposed hybrid renewable energy-based EV charging station offers an efficient, reliable, and environmentally sustainable solution for future smart grid and electric transportation applications.

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