Research on energy management of power supply system based on fuzzy logic

With escalating environmental concerns, notably climate change and air pollution, electric vehicle (EV) power systems have gained paramount importance and research significance. Fulfilling the electricity demand of EVs necessitates efficient energy management strategies for high-voltage power supply systems. Traditional strategies, reliant on logical thresholds, exhibit limitations, thereby urging a shift towards investigating energy management strategies incorporating fuzzy logic. This article presents a simulation model for the high-voltage power supply system of EVs, evaluating two energy management strategies through simulation. Comparative analysis of experimental results reveals that the strategy based on fuzzy logic outperforms the conventional approach. Findings indicate that the proposed energy management strategy effectively distributes energy output across various components of the high-voltage power supply system, optimizing performance during starting, accelerating, cruising, and braking conditions, thereby enhancing overall system efficiency.