The system adopts a modular design, allowing for flexible configuration of photovoltaics, batteries, and loads. The integrated photovoltaic-energy storage-charging power station is currently the best solution. By combining photovoltaics and energy storage, the energy for the charging station can be supplied by photovoltaics, improving the self-consumption rate of photovoltaic power generation. It reduces the impact of high-power equipment such as charging piles on the transformer load, enables peak-shaving capacity expansion, maximizes the satisfaction of charging demand, and has the advantages of a flexible and efficient system with significant economic and environmental benefits.