Scholarlink

<p>Magnetically coupled resonant wireless power transfer (MCR-WPT) systems are highly sensitive to variations in air gap and lateral misalignment, which strongly influence the self- and mutual inductances of coils, especially in small-gap applications. To address these challenges, this paper proposes an integrated LCC/S-S compensation topology to achieve wide-range zero-voltage switching (ZVS) while accommodating coil parameter and load variations. A phase-shifted closed-loop control strategy is employed to realize both constant current (CC) and constant voltage (CV) outputs. By optimizing the integrated coil structure and compensation parameters, the system can flexibly switch between LCC-S and S-S modes, thereby extending the ZVS operating range and overcoming the open-circuit and light-load limitations inherent to conventional S-S compensation. A 500 W experimental prototype is developed to validate the effectiveness of the proposed method. Experimental results demonstrate that, within an air-gap range of 20–50 mm and an output power range of 0–500 W, the system maintains ZVS operation across a wide coupling variation, broadens the load-handling capability, supports CC/CV outputs, and achieves a peak efficiency exceeding 85%.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

An Integrated LCC/S-S Compensated MCR-WPT System for Constant-Current/Voltage Outputs: Design and Analysis

  • 期刊论文

  • 发表日期：

    2026年2月18日

查看全文
  • Jin Luo,
  • Yu Zhu,
  • Xiaojuan Xu,
  • Hao Shen

摘要

Magnetically coupled resonant wireless power transfer (MCR-WPT) systems are highly sensitive to variations in air gap and lateral misalignment, which strongly influence the self- and mutual inductances of coils, especially in small-gap applications. To address these challenges, this paper proposes an integrated LCC/S-S compensation topology to achieve wide-range zero-voltage switching (ZVS) while accommodating coil parameter and load variations. A phase-shifted closed-loop control strategy is employed to realize both constant current (CC) and constant voltage (CV) outputs. By optimizing the integrated coil structure and compensation parameters, the system can flexibly switch between LCC-S and S-S modes, thereby extending the ZVS operating range and overcoming the open-circuit and light-load limitations inherent to conventional S-S compensation. A 500 W experimental prototype is developed to validate the effectiveness of the proposed method. Experimental results demonstrate that, within an air-gap range of 20–50 mm and an output power range of 0–500 W, the system maintains ZVS operation across a wide coupling variation, broadens the load-handling capability, supports CC/CV outputs, and achieves a peak efficiency exceeding 85%.