Analysis of key parameters for inductively coupled power transfer systems realized by detuning factor in synchronous generators

Jinfeng Liu, Kun Li, Ningzhi Jin, Herbert Ho Ching Iu

Research output: Contribution to journalArticle

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.

Original languageEnglish
Pages (from-to)1087-1098
Number of pages12
JournalJournal of Power Electronics
Volume19
Issue number5
DOIs
Publication statusPublished - 1 Sep 2019

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Synchronous generators
Current density
Fluxes
MATLAB
Magnetic fields

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title = "Analysis of key parameters for inductively coupled power transfer systems realized by detuning factor in synchronous generators",
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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author = "Jinfeng Liu and Kun Li and Ningzhi Jin and Iu, {Herbert Ho Ching}",
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Analysis of key parameters for inductively coupled power transfer systems realized by detuning factor in synchronous generators. / Liu, Jinfeng; Li, Kun; Jin, Ningzhi; Iu, Herbert Ho Ching.

In: Journal of Power Electronics, Vol. 19, No. 5, 01.09.2019, p. 1087-1098.

Research output: Contribution to journalArticle

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