Abstract: To meet the rapid charging requirements of new energy vehicle and achieve seamless switching between different voltage levels charge, a charging circuit control strategy for battery electric vehicle has been proposed in this paper based on the charging principles of electric vehicle and the technical characteristics of current charging systems. This control strategy employs fuzzy control and intelligent optimization techniques, and its feasibility has been validated through the establishment of mathematical models and simulation analysis. Simulation results demonstrate the advantages of this method in power factor correction. Additionally, the total harmonic distortion (THD) content is only 3.37%, which well meets the requirements for harmonics.

Key words: battery electric vehicle; charging circuit; control strategy; feedforward decoupling control; THD

摘要： 为了满足新能源汽车的快速充电要求，实现不同电压等级充电的无缝切换，根据电动 汽车的充电原理及当前充电系统的技术特点，文章提出了一种纯电动汽车充电电路控制策略。 该控制策略采用模糊控制与智能优化技术，并通过建立数学模型和仿真分析，验证了控制策 略的可行性。仿真结果表明，该方法在功率因数校正方面具有优势，同时总谐波失真（THD） 含量仅为 3.37%，很好地满足了对于谐波的要求。

关键词: 纯电动汽车；充电电路；控制策略；前馈解耦控制；总谐波失真