High-efficiency on-board battery charger with transformer isolation, sinusoidal input current and maximum power factor
作者:
J.Ch.Bendien,
G.Fregien,
J.D.van Wyk,
期刊:
IEE Proceedings B (Electric Power Applications)
(IET Available online 1986)
卷期:
Volume 133,
issue 4
页码: 197-204
年代: 1986
DOI:10.1049/ip-b.1986.0027
出版商: IEE
数据来源: IET
摘要:
The paper concerns a battery charger that has been developed for use in a battery powered electric road vehicle. The object is to charge the 144 V traction battery directly from the 220 V supply by drawing sinusoidal current at the input, to obtain, a high efficiency and to have transformer isolation from the supply. To achieve this, the rectified 220 V supply is chopped up to 500 V by a DC to DC convertor and transformed to the necessary voltage for battery charging by using a high-frequency self-oscillating inverter with magnetic feedback. The rectified output of the inverter charges the battery. The step-up chopper controls the transmitted power to the battery and ensures a sinusoidal line current. A detailed description of the power circuit is given and the capabilities of the complete system are proved by extensive measurements.
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