Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
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Analysis of Key Parameters for Inductively Coupled Power Transfer Systems Realized by Detuning Factor in Synchronous Generators

  • Liu, Jinfeng (Engineering Research Center of Automotive Electronics Drive Control and System Integration, Ministry of Education, Harbin University of Science and Technology) ;
  • Li, Kun (Engineering Research Center of Automotive Electronics Drive Control and System Integration, Ministry of Education, Harbin University of Science and Technology) ;
  • Jin, Ningzhi (Engineering Research Center of Automotive Electronics Drive Control and System Integration, Ministry of Education, Harbin University of Science and Technology) ;
  • Iu, Herbert Ho-Ching (School of Electrical, Electronics and Computer Engineering, University of Western Australia)
  • Received : 2019.02.24
  • Accepted : 2019.04.25
  • Published : 2019.09.20
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Abstract

In this paper, a detuning factor (DeFac) method is proposed to design the key parameters for optimizing the transfer power and efficiency of an Inductively Coupled Power Transfer (ICPT) system with primary-secondary side compensation. Depending on the robustness of the system, the DeFac method can guarantee the stability of the transfer power and efficiency of an ICPT system within a certain range of resistive-capacitive or resistive-inductive loads. A MATLAB-Simulink model of a ICPT system was built to assess the system's main evaluation criteria, namely its maximum power ratio (PR) and efficiency, in terms of different approaches. In addition, a magnetic field simulation model was built using Ansoft to specify the leakage flux and current density. Simulation results show that both the maximum PR and efficiency of the ICPT system can reach almost 70% despite the severe detuning imposed by the DeFac method. The system also exhibited low levels of leakage flux and a high current density. Experimental results confirmed the validity and feasibility of an ICPT system using DeFac-designed parameters.

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References

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