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| Control of Load Soft-Switched for Electric-Field Coupled Power Transfer System |
| Su Yugang1, 2, Zhao Yuming2, Xie Shiyun2, Tang Chunsen2, Wu Xueying2 |
1. State Key Laboratory of Power Transmission Equipment & System Security and New Technology Chongqing University Chongqing 400030 China;
2. College of Automation Chongqing University Chongqing 400030 China |
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Abstract Load-switched changes the topology of electric-field coupled power transfer (ECPT) system, usually causing dramatic impacts on the transistor and making the system cannot work properly. Focusing on the basic characteristics of the E-converter based ECPT system, this paper provides the condition of load soft-switched and proposes a parameter design method to achieve load soft-switched at the fixed operating frequency, where the same equivalent circuit of the system with load-switched is utilized. Thereafter, a set of parameters are obtained. Finally, the simulation and experimental prototypes are built. Both simulation and experimental results verify the proposed method. The system can provide the required power at the steady state with the efficiency over 85%, while it works at low power consumption after the load is removed.
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Published: 10 October 2017
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| Fund:国家自然科学基金（51477020、61573074）和中央高校基本科研业务费（106112015CDJXY170002）资助项目 |
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2017, Vol. 32 
