International Conference
Compensation Network Design Method for Capacitive Power Transfer System Considering Coupling Variation | |
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Year | 2022 |
Month | October |
Journal | 2022 IEEE Energy Conversion Congress and Exposition (ECCE) |
Author | Sunghyuk Choi, Gyu Cheol Lim, Jin-Su Hong, Euihoon Chung, GyuYeong Choe and Jung-Ik Ha |
Link | http://ieeexplore.ieee.org/document/9947582 129회 연결 |
In capacitive power transfer systems, the coupling variation is inevitable due to the air gap variation and coupler misalignment. This paper proposes a new compensation network design method for capacitive power transfer systems tolerant to coupling variation. The proposed method effectively transforms the input impedance of the compensation network into a single resistive point in the presence of coupling variations. The new design method is derived based on two-port network analyses and provides practical design guidelines applicable to various capacitive power transfer systems. The proposed methods offer minimized VA rating and enhanced power transfer capability by achieving a zero-phase angle operation under coupling variations. Also, the designed network can be modified for the preselected phase angle to guarantee the zero-voltage-switching operation with higher efficiency. A design example is presented, and its effectiveness is validated through simulations and experimental results. |