TY - GEN
T1 - Detuned Dual-Frequency Compensation for Wide Misalignment Tolerance in Inductive Power Transfer Systems
AU - Yao, Zirui
AU - Luo, Shiying
AU - Krein, Philip T.
AU - Ma, Hao
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - In inductive power transfer systems, misalignment can lead to inconsistent output power. In this paper, a topology based on a primary-side detuned dual-frequency compensation circuit is proposed to provide consistent output characteristics over a wide misalignment range. The proposed topology constructs two intersecting power vs. coupling coefficient curves at two switching frequencies. The coupling coefficient range can be extended without increasing primary current and reactive power variability by changing the switching frequency at curve intersections. With this approach, the output power changes by only 10% over a 2.5:1 coupling coefficient range, and efficiency at low coupling can be improved. This means the proposed topology is more adaptive for misalignment. A 1500 W prototype has been prepared to verify the topology. Efficiency ranges from 86.8% to 94.5% over a coupling coefficient range from 0.14 to 0.35.
AB - In inductive power transfer systems, misalignment can lead to inconsistent output power. In this paper, a topology based on a primary-side detuned dual-frequency compensation circuit is proposed to provide consistent output characteristics over a wide misalignment range. The proposed topology constructs two intersecting power vs. coupling coefficient curves at two switching frequencies. The coupling coefficient range can be extended without increasing primary current and reactive power variability by changing the switching frequency at curve intersections. With this approach, the output power changes by only 10% over a 2.5:1 coupling coefficient range, and efficiency at low coupling can be improved. This means the proposed topology is more adaptive for misalignment. A 1500 W prototype has been prepared to verify the topology. Efficiency ranges from 86.8% to 94.5% over a coupling coefficient range from 0.14 to 0.35.
KW - detuned primary
KW - dual-frequency compensation
KW - inductive power transfer
KW - misalignment tolerance
UR - http://www.scopus.com/inward/record.url?scp=85174277517&partnerID=8YFLogxK
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U2 - 10.1109/IESES53571.2023.10253749
DO - 10.1109/IESES53571.2023.10253749
M3 - Conference contribution
AN - SCOPUS:85174277517
T3 - 2023 IEEE 3rd International Conference on Industrial Electronics for Sustainable Energy Systems, IESES 2023
BT - 2023 IEEE 3rd International Conference on Industrial Electronics for Sustainable Energy Systems, IESES 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 3rd IEEE International Conference on Industrial Electronics for Sustainable Energy Systems, IESES 2023
Y2 - 26 July 2023 through 28 July 2023
ER -