Optimal Efficiency Point Control of Wireless Charging Systems for Electric Vehicles

Wireless charging technology shows great promise for efficient power transfer. However, the effectiveness of power transfer largely depends on various operational parameters such as coupling coefficients, load resistance, and operating frequency, making it challenging. To address this issue, a novel fuzzy control algorithm is proposed in this paper to continuously track the optimal efficiency point of a wireless charging system. First, this paper designs the topology of the wireless charging system and analyzes its optimal efficiency point. Then, it proposes the control scheme, which can adjust all the parameters and maximize its efficiency. Finally, the scheme is then evaluated through simulations and experiments and the results show that the proposed control scheme effectively optimizes power transfer and enhances the overall performance of the wireless charging system.