Journal of South China University of Technology (Natural Science Edition) ›› 2016, Vol. 44 ›› Issue (5): 42-47.doi: 10.3969/j.issn.1000-565X.2016.05.007

• Electronics, Communication & Automation Technology • Previous Articles     Next Articles

Characteristic of Tuned Capacitor in IPT System Based on Impedance Matching

SUN Yue1,2 ZHANG Jing2 YE Zhao-hong2 WANG Zhi-hui2   

  1. 1.State Key Laboratory of Power Transmission Equipment and System Security and New Technology,Chongqing University,Chongqing 400044,China; 2.School of Automation,Chongqing University,Chongqing 400044,China
  • Received:2015-09-11 Revised:2015-12-08 Online:2016-05-25 Published:2016-04-12
  • Contact: 孙跃(1960-)，男，教授，博士生导师，主要从事电力电子技术及其应用、感应耦合电能传输技术研究． E-mail:syue06@cqu.edu.cn
  • About author:孙跃(1960-)，男，教授，博士生导师，主要从事电力电子技术及其应用、感应耦合电能传输技术研究．
  • Supported by:
    Supported by the National Natural Science Foundation of China(51277192) and the National High-Tech R&D Program of China(2015AA010402)

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Abstract: In order to overcome the instable resonance frequency of inductive power transmission system caused by impedance mismatch,a three-capacitor configuration array for dynamic tuning is proposed,and the relationship between resonant capacitance and system frequency is analyzed.Moreover,the value distribution,scope and out- put precision of capacitor array are discussed,and the capacitance value of the three-capacitor array is optimized by means of genetic algorithm.Simulated results indicate that,as the proposed three-capacitor array presents wide-scope output capacitance and high-precision adjustable capacitance,it can be applied to the system that requires large output capacitance range and high adjustable precision.

Key words: inductive coupling power transmission, impedance matching, three-capacitor array, capacitance optimization

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