TY - GEN
T1 - Mutual Inductance Calculation Model for Narrow Track Bipolar Non-Salient Pole Magnetic Couplers in Electric Vehicle Dynamic Wireless Charging Applications
AU - Zhao, Fandan
AU - Zhu, Chunbo
AU - Cui, Shumei
N1 - Publisher Copyright:
© Beijing Paike Culture Commu. Co., Ltd. 2026.
PY - 2026
Y1 - 2026
N2 - The magnetic coupler for electric vehicle dynamic wireless power transfer applications has been continuously explored and optimized to meet future industrialization demands. Mutual inductance is a core parameter influencing the output characteristics of narrow track bipolar magnetic couplers. However, for the recently proposed narrow track bipolar non-salient pole magnetic coupler, an effective and convenient mutual inductance calculation model is lacking. This paper proposes an analytical method for calculating the mutual inductance of narrow track bipolar non-salient pole magnetic couplers. By providing magnetic potential boundary conditions and employing Schwarz-Christoffel transformation, an analytical relationship between mutual inductance and structural parameters is derived, and a simplified solution for mutual inductance is also presented. The established mutual inductance calculation model exhibits a calculation deviation of less than 3% at a transmission distance of 200 mm, significantly improving the calculation speed and flexibility compared to finite element simulation analysis. This provides a theoretical basis for the rapid design, parameter analysis, and optimization of narrow track bipolar non-salient pole magnetic couplers.
AB - The magnetic coupler for electric vehicle dynamic wireless power transfer applications has been continuously explored and optimized to meet future industrialization demands. Mutual inductance is a core parameter influencing the output characteristics of narrow track bipolar magnetic couplers. However, for the recently proposed narrow track bipolar non-salient pole magnetic coupler, an effective and convenient mutual inductance calculation model is lacking. This paper proposes an analytical method for calculating the mutual inductance of narrow track bipolar non-salient pole magnetic couplers. By providing magnetic potential boundary conditions and employing Schwarz-Christoffel transformation, an analytical relationship between mutual inductance and structural parameters is derived, and a simplified solution for mutual inductance is also presented. The established mutual inductance calculation model exhibits a calculation deviation of less than 3% at a transmission distance of 200 mm, significantly improving the calculation speed and flexibility compared to finite element simulation analysis. This provides a theoretical basis for the rapid design, parameter analysis, and optimization of narrow track bipolar non-salient pole magnetic couplers.
KW - Dynamic Wireless Power Transfer
KW - Mutual Inductance Calculation Model
KW - Narrow Track Bipolar Magnetic Coupler
KW - Non-salient Pole
UR - https://www.scopus.com/pages/publications/105035324303
U2 - 10.1007/978-981-95-8252-5_53
DO - 10.1007/978-981-95-8252-5_53
M3 - 会议稿件
AN - SCOPUS:105035324303
SN - 9789819582518
T3 - Lecture Notes in Electrical Engineering
SP - 493
EP - 502
BT - The Proceedings of the 20th Annual Conference of China Electrotechnical Society - Volume 9
A2 - Yang, Qingxin
A2 - Xu, Dianguo
A2 - Ye, Xuerong
A2 - Nie, Qiuyue
A2 - Guan, Yueshi
PB - Springer Science and Business Media Deutschland GmbH
T2 - 20th Annual Conference of China Electrotechnical Society, ACCES 2025
Y2 - 19 September 2025 through 21 September 2025
ER -