A Multi-Inverter Multi-Rectifier Wireless Power Transfer System for Charging Stations With Power Loss Optimized Control

Liu, Xin; Gao, Fei; Wang, Tianfeng; Khan, Muhammad Mansoor; Zhang, Yun; Xia, Yue; Wheeler, Patrick

Abstract

Electric vehicles with different output power levels can use wireless power transfer (WPT) systems. Different vehicle assemblies (VAs) may be charged by different ground assemblies (GAs) in charging stations. However, the overall efficiency of the WPT system may drop significantly when the power class difference between GA and VA is large. To address this issue this article proposes a dc-link parallel ac-link series multi-inverter multirectifier architecture for high-power WPT systems. Modulation, power transfer capability, and power sharing from the design aspects are investigated. A detailed power loss analysis and an easy-to-implemented power loss optimized control method based on mutual inductance identification are presented in this article. Finally, experimental results are obtained from a 20-kW LCC-LCC WPT system to validate the analysis and proposed system operation.

Citation

Liu, X., Gao, F., Wang, T., Khan, M. M., Zhang, Y., Xia, Y., & Wheeler, P. (2023). A Multi-Inverter Multi-Rectifier Wireless Power Transfer System for Charging Stations With Power Loss Optimized Control. IEEE Transactions on Power Electronics, 38(8), 9261-9277. https://doi.org/10.1109/tpel.2023.3275284

• Journal Article Type: Article
• Acceptance Date: May 15, 2023
• Online Publication Date: May 15, 2023
• Publication Date: 2023-08
• Deposit Date: Feb 6, 2024
• Publicly Available Date: Feb 6, 2024
• Journal: IEEE Transactions on Power Electronics
• Print ISSN: 0885-8993
• Electronic ISSN: 1941-0107
• Publisher: Institute of Electrical and Electronics Engineers
• Peer Reviewed: Peer Reviewed
• Volume: 38
• Issue: 8
• Pages: 9261-9277
• DOI: https://doi.org/10.1109/tpel.2023.3275284
• Keywords: Electrical and Electronic Engineering
• Public URL: https://nottingham-repository.worktribe.com/output/20841879
• Publisher URL: https://ieeexplore.ieee.org/document/10124712