ANN-Based Renewable Energy Integrated Bidirectional EV Charging System Using Solar PV, BESS, and Dual Active Bridge Converter

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Chinese explanation / 中文解读

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Original abstract

The increasing penetration of electric vehicles (EVs) and renewable energy resources has accelerated the need for intelligent and efficient charging systems. This paper presents an ANN-based renewable energy integrated bidirectional EV charging system consisting of a Solar Photovoltaic (PV) source, Battery Energy Storage System (BESS), DC–DC boost converter, bidirectional buck–boost converter, and an isolated Dual Active Bridge (DAB) converter. The Solar PV system employs a Perturb and Observe (P&O) Maximum Power Point Tracking (MPPT) algorithm to maximize power extraction under varying irradiance conditions, while the boost converter regulates the PV output voltage. The BESS is interfaced through a bidirectional buck–boost converter with a voltage and current control scheme to regulate the DC-link voltage and manage battery charging and discharging operations. An ANN-based current controller combined with Phase-Shifted Pulse Width Modulation (PSPWM) controls the DAB converter to achieve accurate charging current regulation and efficient bidirectional power transfer to the EV battery. The proposed system is modeled and simulated in MATLAB/Simulink. Simulation results demonstrate stable DC-link voltage, effective power sharing between the Solar PV source and BESS, reduced current ripple, enhanced EV battery state of charge (SOC), and improved overall charging efficiency. The proposed system provides an intelligent, reliable, and energy-efficient solution for next-generation renewable energy-powered bidirectional EV charging applications.

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