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<p>Resonant Inductive Power Transmission (RIPT) represents a cutting-edge Wireless Power Transfer (WPT) technology, emerging as a secure and practical solution for charging electric vehicles (EVs). While Dynamic Wireless Charging Systems (DWCS) reduce the need for large batteries compared to static charging, they entail higher initial investments. This study introduces an innovative approach to DWCS utilizing a half-bridge-based multi-legged inverter configuration. Each leg of the inverter functions independently for a transmitter coil, effectively reducing overall system costs. In this method, the Variable Frequency Control Technique (VFCT) is introduced in half-bridge DWCS with S-S and LCC-S compensations. Analyzed its VFCT on the DWCS. In addition, explores the impact of square and rectangular coils on the proposed approach, coupled with an analysis of coil gaps’ effects on receiving power. Through an exploration of the half-bridge multi-legged DWCS and a comprehensive evaluation of coil gap and size influences, this study provides valuable insights for optimizing RIPT technology to achieve efficient and cost-effective EV charging.</p>

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Analysis and implementation of variable frequency controlled dynamic wireless charging system with half-bridge multi-leg converter topology

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年7月2日

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  • Aganti Mahesh,
  • Bharatiraja Chokkalingam,
  • Sanjeevikumar padmanaban,
  • C. Santhakumar

摘要

Resonant Inductive Power Transmission (RIPT) represents a cutting-edge Wireless Power Transfer (WPT) technology, emerging as a secure and practical solution for charging electric vehicles (EVs). While Dynamic Wireless Charging Systems (DWCS) reduce the need for large batteries compared to static charging, they entail higher initial investments. This study introduces an innovative approach to DWCS utilizing a half-bridge-based multi-legged inverter configuration. Each leg of the inverter functions independently for a transmitter coil, effectively reducing overall system costs. In this method, the Variable Frequency Control Technique (VFCT) is introduced in half-bridge DWCS with S-S and LCC-S compensations. Analyzed its VFCT on the DWCS. In addition, explores the impact of square and rectangular coils on the proposed approach, coupled with an analysis of coil gaps’ effects on receiving power. Through an exploration of the half-bridge multi-legged DWCS and a comprehensive evaluation of coil gap and size influences, this study provides valuable insights for optimizing RIPT technology to achieve efficient and cost-effective EV charging.