Journal
IEEE TRANSACTIONS ON POWER ELECTRONICS
Volume 35, Issue 6, Pages 6039-6049Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPEL.2019.2954906
Keywords
Hybrid topology; inductive power transfer (IPT); misalignment tolerance; quadruple-D quadrature pads (QDQPs)
Categories
Funding
- National Key Research and Development Program of China [2017YFB1201002]
- National Natural Science Foundation of China [51977184, 51677155]
- Applied Basic Research Programs of Science and Technology Commission Foundation of Sichuan Province [2018JY0586]
- State Scholarship Fund of China Scholarship Council [201807000025]
- Cultivation Program for the Excellent Doctoral Dissertation of Southwest Jiaotong University [2016310066]
Ask authors/readers for more resources
Pad misalignments are almost inevitable in most inductive power transfer (IPT) systems. It tends to cause parameter variations and, thus, significantly affects the performance of the IPT system. In this article, a hybrid IPT system with misalignment tolerance using the quadruple-D quadrature pads (QDQPs) is proposed to tolerate the x, y, z, and diagonal misalignments with load-independent output voltage, simplifying or even canceling control schemes. Besides, the proposed approach can restrict the increase of the primary current when the secondary side moves out of the operating region. Moreover, a new parametric design method is presented according to the misalignment characteristics of QDQPs. The method can limit the output voltage fluctuation to a certain range, given a predetermined misalignment distance. A 3.5-kW prototype was built to verify the proposed hybrid IPT system. The primary and secondary coil sizes are 400 mm x 400 mm, and the air gap is 150 mm. Experimental results demonstrate that the proposed hybrid system can tolerate -150 to +150 mm x-misalignment,-150 to + 150 mmy-misalignment,-20 to + 35 mm z-misalignment, and -100 to +100 mm diagonal misalignment with load-independent output voltage. Within the predetermined misalignment range, the output voltage fluctuation is less than 5%.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available