期刊
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
卷 65, 期 6, 页码 4419-4428出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TVT.2016.2535237
关键词
Battery charger; dc/dc converter; hybrid converter
资金
- Sangsin Brake Co. [2013T100200023]
- Human Resources Development program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) - Korea government Ministry of Trade, Industry, and Energy [20114010203030]
This paper suggests a hybrid pulsewidth-modulation ( PWM) dc/dc converter for an electric vehicle ( EV) on-board charger ( OBC). It is composed of a full-bridge ( FB) converter and a resonant converter with secondary resonance tank ( SRT). They are coupled in a single transformer so that any power distribution problem that causes a size increase in the transformer can be solved. Dual power flow of the proposed charger provides an increase in charger gain and a reduction of turn-off voltage spikes of the rectifying diodes caused by transformer leakage inductance and diode junction capacitance. These characteristics help reduce diode loss and remove dissipative snubber circuitry. In addition, this structure has the additional advantage of output inductor size due to the reduction of voltage variation applied to the inductor. The feasibility of the proposed charger is verified with a 6.6-kW prototype implemented by a design procedure.
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