Transition control of standby and operation modes of wireless charging system for inspection robots

Han Liu, Linlin Tan, Xueliang Huang, Dariusz Czarkowski

Research output: Contribution to journalArticlepeer-review


To solve the problems in the contact charging of inspection robots, a wireless charging system for inspection robots and a control strategy are introduced in this paper. Circuit models of a wireless power system with a compound compensation circuit and a three-phase Class-D resonant inverter are set up based on circuit theory. An output voltage control method based on the equal spread regulation of the phase difference between adjacent phases and the parameter correction method in the primary compound compensation circuit are proposed. The dynamic characteristics of the key parameters varying with the secondary coil position are obtained to further investigate the adaptive location scheme during the access and exit processes of moving robots. Combining the output voltage control method and the adaptive location scheme, a transition control strategy for the standby and operation modes of the wireless charging systems for inspection robots is put forward to realize the system characteristics including the low standby power in the standby mode and the high receiving power in the operation mode. Finally, experiments are designed and conducted to verify the correctness of the theoretical research.

Original languageEnglish (US)
Pages (from-to)691-701
Number of pages11
JournalJournal of Power Electronics
Issue number3
StatePublished - May 2019


  • Adaptive location scheme
  • Inspection robot
  • Standby and operation modes
  • Transition control strategy
  • Wireless power transmission

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering


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