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《Proceedings of the CSEE》 2010-18
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Study on Contactless Power Bi-directional Push Mode

DAI Xin,SUN Yue,SU Yu-gang,TANG Chun-sen,WANG Zhi-hui(College of Automation of Chongqing University,Shapingba District,Chongqing 400030,China)  
In contactless power transfer system,attribute to unidirectional energy transfer,there are many problems such as energy feedback difficultly and low efficiency brought by system open-loop running.A novel contactless energy bi-directional push mode was developed to realize direct conversion between energy transmitter and receiver.In the mode,the energy transmitter and receiver had symmetric structure and could operate as either magnetic field excitation source or power sink to fulfill the energy bi-directional transfer requirement.Furthermore,with resonant soft-switched technology,a bi-directional conversion circuit topology was proposed.The working process of this topology was also presented.In the topology,energy injection mode and autonomous running mode were developed respectively for dynamic transferred power regulation.The maximum power transfer capability and operating frequency design method were put forwards.This paper set up system equivalent circuit model and corresponding state-space model under energy injection and autonomous running mode respectively.The simulation and experimental results verify feasibility of the contactless energy bi-directional push mode.
【Fund】: 国家自然科学基金项目(50807057 50777071);; 高等学校博士学科点专项科研基金资助课题(20070611012)~~
【CateGory Index】: TM724
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