An Inverter for Wireless Charging System of Electric Vehicle in Wide Load Range
Ji Li1, Liao Chenglin1,2, Wang Lifang1,2, Li Shufan1,3
1. Key Laboratory of Power Electronics and Electric Drive Institute of Electrical Engineering Chinese Academy of Sciences Beijing 100190 China; 2. Beijing Co-Innovation Center for Electric Vehicles Beijing 100081 China; 3. University of Chinese Academy of Sciences Beijing 100190 China
Abstract：Electrical vehicle (EV) have to operate in different conditions including null-load, light-load, and heavy-load, so the inverter need to work in wide power range. Conventional phase-shifted full-bridge converters have problems such as difficult to achieve ZVS for lagging bridge. This paper adapted a current-enhanced inverter topology with auxiliary network to design a wide-power-range inverter for wireless charging system. By analysis on mechanism of current and voltage peaks in actual system, corresponding measures are taken and hardware system is established. The result of experiments showed that the designed inverter could achieve ZVS under all three operating conditions.
吉莉, 廖承林, 王丽芳, 李树凡. 基于电动汽车无线充电的宽负载范围逆变器[J]. 电工技术学报, 2018, 33(zk1): 9-17.
Ji Li, Liao Chenglin, Wang Lifang, Li Shufan. An Inverter for Wireless Charging System of Electric Vehicle in Wide Load Range. Transactions of China Electrotechnical Society, 2018, 33(zk1): 9-17.
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2018, Vol. 33 
