Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)
- 2015.11a
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- Pages.25-26
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- 2015
Implementation of the CC/CV Charge of the Wireless Power Transfer System for Electric Vehicle Battery Charge Applications
전기 자동차 배터리 충전 애플리케이션을 위한 무선 전력 전송 시스템의 CC/CV 충전의 구현
- Vu, Van-Binh (Department of Electrical Engineering, Soongsil University) ;
- Tran, Duc-Hung (Department of Electrical Engineering, Soongsil University) ;
- Pham, Van-Long (Department of Electrical Engineering, Soongsil University) ;
- Choi, Woojin (Department of Electrical Engineering, Soongsil University)
- Published : 2015.11.27
Abstract
Inductive Power Transfer (IPT) method becomes more and more popular for the Electric Vehicle (EV) battery charger due to its convenience and safety in comparison with plugged-in charger. In recent years, Lithium batteries are increasingly used in EVs and Constant Current/Constant Voltage (CC/CV) charge needs to be adopted for the high efficiency charge. However, it is not easy to design the IPT Battery Charger which can charge the battery with CC/CV charge under the wide range of load variation due to the wide range of variation in its operating frequency. This paper propose a new design and control method which makes it possible to implement the CC/CV mode charge with minimum frequency variation (less than 1kHz) during all over the charge process. A 6.6kW prototype charge has been implemented and 96.1% efficiency was achieved with 20cm air gap between the coils.
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