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A 3 kW Bidirectional DC-DC Converter for Electric Vehicles

Title
A 3 kW Bidirectional DC-DC Converter for Electric Vehicles
Author
김희준
Keywords
Bidirectional DC-DC converter; Battery charger; Electric vehicles; Efficiency
Issue Date
2016-07
Publisher
대한전기학회
Citation
JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY, v. 11, No. 4, Page. 860-868
Abstract
A bidirectional DC-DC converter (BDC) is an indispensable electrical unit for the electric vehicles (EVs). High efficiency, high power density, isolation, light weight and reliability are all essential requirements for BDC. In this paper, a 3 kW BDC for the battery charger of EVs is proposed. The proposed converter consists of a half-bridge structure on the primary side and an isolation transformer and a synchronous rectifier structure on the secondary side. With this topology, minimum number of switching devices are required for bidirectional power flow between the two dc buses of EVs. The easy implementation of the synchronous rectification gives advantages in terms of efficiency, cost and flexibility. The proposed BDC achieves high efficiency when operating in both modes (step-up and step-down). A 3 kW prototype is implemented to verify theoretical analysis and the performance of the proposed converter.
URI
http://koreascience.or.kr/article/JAKO201620240593776.pagehttp://repository.hanyang.ac.kr/handle/20.500.11754/102598
ISSN
1975-0102; 2093-7423
DOI
10.5370/JEET.2016.11.4.860
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ELECTRICAL ENGINEERING(전자공학부) > Articles
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