Analysis on Loop Detuning Characteristics of Multi-Relay Wireless Power Transfer System

doi:10.16628/j.cnki.2095-8188.2023.02.009

Abstract

Abstract:

Loop detuning is an urgent problem in multi-relay wireless power transfer (MR-WPT) system.In order to find out the influence rule of loop detuning in MR-WPT system,the changes of current amplitude and phase of each coil loop were compared in MR-WPT system under the conditions of complete resonance,single coil loop detuning and two coil loop detuning.The system detuning characteristics were analyzed.Finally,in order to improve the system performance after loop detuning,the method based on frequency regulation is proposed to maintain the overall resonance of the system and its feasibility is verified by simulation,which provides a solution for improving the system performance after loop detuning.

Key words: multi-relay wireless power transfer(MR-WPT) system, loop detuning, detuning characteristics, frequency regulation

CLC Number:

TM724

HU Fengming, TANG Jiabin, XIAO Jing, CHEN Weizhi, CHEN Guanlin. Analysis on Loop Detuning Characteristics of Multi-Relay Wireless Power Transfer System[J]. LOW VOLTAGE APPARATUS, 2023, 0(2): 44-52.

Figures/Tables 20

References 28

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名称	L₁	L₂	L₃	L₄	L₅	L₆
自感/μH	45.08	45.18	45.17	45.16	45.19	45.18
名称	L₇	L₈	L₉	L₁₀	L₁₁	L₁₂
自感/μH	45.18	45.17	45.31	45.09	45.16	45.23

名称	M₁₂	M₂₃	M₃₄	M₄₅	M₅₆	M₆₇
互感/μH	3.12	3.12	3.12	3.12	3.12	3.13
名称	M₇₈	M₈₉	M₉₁₀	M₁₀₁₁	M₁₁₁₂
互感/μH	3.13	3.13	3.12	3.12	3.13