Lyapunov Function-Based Control Strategy for Suppressing Power Pulsations in Dynamic Wireless Charging of Electric Vehicles
Conference
Behnamfar, M, Sarwat, A, Tariq, M. (2024). Lyapunov Function-Based Control Strategy for Suppressing Power Pulsations in Dynamic Wireless Charging of Electric Vehicles
. 10.1109/ITEC60657.2024.10598873
Behnamfar, M, Sarwat, A, Tariq, M. (2024). Lyapunov Function-Based Control Strategy for Suppressing Power Pulsations in Dynamic Wireless Charging of Electric Vehicles
. 10.1109/ITEC60657.2024.10598873
A control method based on the Lyapunov function is proposed for suppressing power fluctuation and stabilizing power in the dynamic wireless charging of electric vehicles. Dynamic wireless charging is a promising technology for alleviating range anxiety by providing continuous and uninterrupted charging for electric vehicles in motion. However, such technology suffers from power pulsation due to the variation of mutual coupling as the vehicle is traveling across transmitter coils, and this power fluctuation deteriorates the battery's lifetime and the system's efficiency. To address this issue, a Lyapunov function-based control method is introduced to regulate output voltage and power by controlling a boost converter at the secondary side. Moreover, the proposed controller ensures that the output voltage remains independent of load conditions. Additionally, it effectively maintains smooth power delivery even as the load and mutual coupling fluctuate simultaneously, demonstrating rapid system response to varying load conditions and mutual coupling. The results validate the effectiveness of the proposed controller in suppressing fluctuations in both output voltage and power, with fluctuation rates limited to 0.25% and 0.55%, respectively.
