TY - GEN
T1 - Coil Design for High Coupling Performance for Two-phase Receiver of Dynamic Wireless Charging System
AU - Wang, Zhiyuan
AU - Zhang, Jiantao
AU - Huang, Tianhao
AU - Cui, Shumei
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/6
Y1 - 2019/6
N2 - A new two-phase receiver coil design for dynamic wireless charging system (DWC system) with high coupling coefficient and small output fluctuation is proposed in this paper, consisting of Double-D coil (DD coil) and OQO coil. OQO coil is composed of three rectangular coils of different sizes. The induced voltage of the power supply rail with alternating polarity magnetic poles for DWC system has large fluctuation and zero point. This issue can be solved by using multi-phase receiver. The single phase is typically DD coil. Rectangular or DD coil is often used as another phase coil, which have the disadvantages of weak coupling performance and cross coupling. Therefore, this paper presents the structure of OQO coil as another phase coil, which has higher coupling coefficient and parameter consistency, and decouples from the single-phase DD coil. The sizes and turns ratio of OQO coil are analyzed and optimized to obtain the highest coupling coefficient. The comparison with rectangular quadrature coil, DD coil and Bipolar Pad (BPP) under the same receiver length limit demonstrates the advantages of the OQO coil. The experimental prototype is built to verify the results of simulation and calculation.
AB - A new two-phase receiver coil design for dynamic wireless charging system (DWC system) with high coupling coefficient and small output fluctuation is proposed in this paper, consisting of Double-D coil (DD coil) and OQO coil. OQO coil is composed of three rectangular coils of different sizes. The induced voltage of the power supply rail with alternating polarity magnetic poles for DWC system has large fluctuation and zero point. This issue can be solved by using multi-phase receiver. The single phase is typically DD coil. Rectangular or DD coil is often used as another phase coil, which have the disadvantages of weak coupling performance and cross coupling. Therefore, this paper presents the structure of OQO coil as another phase coil, which has higher coupling coefficient and parameter consistency, and decouples from the single-phase DD coil. The sizes and turns ratio of OQO coil are analyzed and optimized to obtain the highest coupling coefficient. The comparison with rectangular quadrature coil, DD coil and Bipolar Pad (BPP) under the same receiver length limit demonstrates the advantages of the OQO coil. The experimental prototype is built to verify the results of simulation and calculation.
KW - dynamic wireless charging
KW - electric vehicle
KW - inductive power transfer
KW - magnetic coupling mechanism
UR - https://www.scopus.com/pages/publications/85083557171
U2 - 10.1109/WPTC45513.2019.9055659
DO - 10.1109/WPTC45513.2019.9055659
M3 - 会议稿件
AN - SCOPUS:85083557171
T3 - 2019 IEEE Wireless Power Transfer Conference, WPTC 2019
SP - 639
EP - 643
BT - 2019 IEEE Wireless Power Transfer Conference, WPTC 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 IEEE Wireless Power Transfer Conference, WPTC 2019
Y2 - 18 June 2019 through 21 June 2019
ER -