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Protection Strategy for WPT Standby Mode Switching Based on LCL-S Topology Parameter Estimation

  • School of Electrical Engineering and Automation, Harbin Institute of Technology
  • Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Wireless power transfer (WPT) has been often used for electric vehicle charging, underwater and mine power supply. In the actual power transfer process, the approach and departure between the transmitter (Tx) and the receiver (Rx) usually require additional detection and communication devices to achieve circuit protection and startup. Based on the circuit characteristics of LCL-S topology, this paper proposes a standby mode switching protection strategy without bilateral communication. When the Rx approaches, the Tx automatically identifies the load and coupling state and quickly switches the operating mode. When the Rx is removed, the Tx automatically maintains the standby mode in the low power state so that it can be restarted quickly. The proposed strategy only collects the electrical parameters of the Tx as the switching basis and does not need to add additional communication devices or detection coils, thus effectively reducing the volume and the transmission power consumption of the WPT system.

Original languageEnglish
Title of host publicationThe Proceedings of 2023 International Conference on Wireless Power Transfer, ICWPT 2023 - Volume I
EditorsChunwei Cai, Xiaohui Qu, Ruikun Mai, Pengcheng Zhang, Wenping Chai, Shuai Wu
PublisherSpringer Science and Business Media Deutschland GmbH
Pages465-473
Number of pages9
ISBN (Print)9789819708727
DOIs
StatePublished - 2024
EventInternational Conference on Wireless Power Transfer, ICWPT 2023 - Weihai, China
Duration: 13 Oct 202315 Oct 2023

Publication series

NameLecture Notes in Electrical Engineering
Volume1158 LNEE
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Conference

ConferenceInternational Conference on Wireless Power Transfer, ICWPT 2023
Country/TerritoryChina
CityWeihai
Period13/10/2315/10/23

Keywords

  • LCL-S topology
  • Quick startup
  • Standby mode switching
  • Wireless power transfer

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