公开(公告)号：US20230142869A1

公开(公告)日：2023-05-11

申请号：US17763082

申请日：2021-04-16

Applicant: BEIJING INSTITUTE OF TECHNOLOGY

Inventor： Junjun DENG ,  Zhenpo WANG ,  Qianning MAO ,  Shuo WANG

IPC: H02J7/00 ,  H02J7/02 ,  H02J50/12 ,  H02M1/42 ,  H02M3/335 ,  B60L53/12 ,  B60L53/60

CPC classification number: H02J7/00712 ,  H02J7/02 ,  H02J50/12 ,  H02M1/42 ,  H02J7/0013 ,  H02M3/33573 ,  B60L53/12 ,  B60L53/60 ,  H02J2207/20 ,  B60L2210/40 ,  B60L2210/30

Abstract: A method and a system for adjusting a double-sided LCC compensation network of a wireless charging system are provided. The method includes: obtaining a standard coupling coefficient, a rated operating frequency, and rated parameter values of compensation elements in the wireless charging system; determining change rates of output performance of the wireless charging system; determining an adjustable compensation element; obtaining a real-time coupling coefficient between the primary-side transmitting coil and the secondary-side receiving coil; determining whether the real-time coupling coefficient is less than a coupling coefficient threshold; and adjusting an operating frequency of the wireless charging system when the real-time coupling coefficient is not less than the coupling coefficient threshold; or adjusting both an operating frequency of the wireless charging system and the adjustable compensation element when the real-time coupling coefficient is less than the coupling coefficient threshold.