A Double-Sided LCLC-Compensated Capacitive Power Transfer System for Electric Vehicle Charging
A Double-Sided LCLC-Compensated Capacitive Power Transfer System for Electric Vehicle Charging
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DOI：
10.1109/tpel.2015.2446891
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发表时间：
2015-11-01
影响因子：
6.7
通讯作者：
Mi, Chris
中科院分区：
文献类型：
--
作者：
Lu, Fei;Zhang, Hua;Mi, Chris
提出了一种用于电动汽车充电应用的双面LC补偿电容功率传输（CPT）系统。利用两对金属板形成两个耦合电容器以无线地传输功率。LCLC补偿结构可以显著降低耦合电容上的电压应力，并在输入和输出处保持单位功率因数。设计了一个2.4 kW的CPT系统，该系统采用4块610 mm × 610 mm的铜板，气隙距离为150 mm，在2.4 kW的输出功率下，系统的DC-DC转换效率达到90.8%.在300-mm失调的情况下，输出功率下降到2.1 kW，效率为90.7%。当气隙距离为300 mm时，输出功率降至1.6 kW，效率为89.1%。
A double-sided LCLC-compensated capacitive power transfer (CPT) system is proposed for the electric vehicle charging application. Two pairs of metal plates are utilized to form two coupling capacitors to transfer power wirelessly. The LCLC-compensated structure can dramatically reduce the voltage stress on the coupling capacitors and maintain unity power factor at both the input and output. A 2.4-kW CPT system is designed with four 610-mm x 610-mm copper plates and an air gap distance of 150 mm. The experimental prototype reaches a dc-dc efficiency of 90.8% at 2.4-kW output power. At 300-mm misalignment case, the output power drops to 2.1 kW with 90.7% efficiency. With a 300-mm air gap distance, the output power drops to 1.6 kW with 89.1% efficiency.