电池(电)
电气工程
电压倍增器
电压
无线电源传输
占空比
计算机科学
电动汽车
功率(物理)
电池充电器
拓扑(电路)
工程类
电压源
物理
电磁线圈
量子力学
跌落电压
作者
Francesca Grazian,Thiago Batista Soeiro,Pavol Bauer
出处
期刊:IEEE Journal of Emerging and Selected Topics in Power Electronics
[Institute of Electrical and Electronics Engineers]
日期:2023-08-01
卷期号:11 (4): 4549-4562
标识
DOI:10.1109/jestpe.2023.3265402
摘要
Light-duty electric vehicles (EVs) typically have a rated voltage of either 400 or 800 V. Especially when considering public parking infrastructures or owners with multiple EVs, e.g., car rental companies, EV wireless chargers must efficiently deliver electric power to both battery options. For this purpose, this article proposes an advanced and compact version of the previously defined voltage/current doubler ( $V/I$ -D) converter, here comprising two coupled series-compensated bipolar pads (BPPs). The presented system can efficiently charge EVs with both battery voltage classes at the same power level without affecting the current rating of the converter’s circuit components. The control scheme is implemented at the power source side in terms of switching frequency and input voltage, and only passive semiconductor devices are employed on board the EV. The equivalent circuit is analyzed, focusing on the BPPs’ undesired cross-coupling and its effect on the power transfer. Methods to compensate for the cross-coupling are proposed regarding the BPP design and operating strategy. At 7.2 kW and aligned BPPs, the dc-to-dc efficiency of 96.34% and 96.53% have been measured at 400 and 800 V, respectively. The proposed method has been experimentally validated at different misalignment profiles while considering battery voltages 300–400 V and 600–800 V, which proves that the $V/I$ -D converter is a universal charging solution for EV batteries.
科研通智能强力驱动
Strongly Powered by AbleSci AI