An Improved Estimation Method of Mutual Inductance Angle for a Two-Dimensional Wireless Power Transfer System

被引：0
|
作者：
Lee, Sangyong [1 ]
Lee, Jeonho [1 ]
Kwon, Jongkyum [2 ]
Chung, Se-Kyo [1 ]
机构：
[1] Gyeongsang Natl Univ, Dept Elect & Elect Engn, 501 Jinjudaero, Jinju 52828, Gyeongnam, South Korea
[2] Gyeongsang Natl Univ, Dept Math Educ, 501 Jinjudaero, Jinju 52828, Gyeongnam, South Korea
来源：
SYMMETRY-BASEL | 2021年 / 13卷 / 03期
基金：
新加坡国家研究基金会;
关键词：
wireless power transfer; mutual inductance; power transmission efficiency;
D O I：
10.3390/sym13030448
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
The improvement of power transmission efficiency (PTE) is an important issue in the design of a wireless power transfer (WPT) system. The WPT system with multiple transmitting (Tx) or receiving (Rx) coils is a way to improve the PTE. This paper deals with the estimation of the mutual inductance angle for a two-dimensional (2D) WPT system with two Tx coils and one Rx coil. The mutual inductance angle is one of the most important parameters to determine the PTE in the 2D WPT system. The condition for the maximum PTE is investigated and the mutual inductance angle is defined for the 2D WPT system. An improved estimation method of the mutual inductance angle is proposed based on the phase-locked loop (PLL) technique using the voltages and currents of the Tx coils. The simulation and experimental results are provided to validate the effectiveness of the proposed method.
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页数：16
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