| 燃料电池电动汽车用大功率Buck DC/DC变换器研究 |
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| 引用本文： | 冯涌波,齐铂金,汪殿龙.燃料电池电动汽车用大功率Buck DC/DC变换器研究[J].企业技术开发,2006,25(5):3-5. |
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| 作者姓名： | 冯涌波 齐铂金 汪殿龙 |
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| 作者单位： | 北京航空航天大学机械工程与自动化学院 北京100083 |
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| 摘 要： | 针对燃料电池电动汽车用大功率DC/DC变换器的要求,文章提出了一种新型的柔性换流BuckDC/DC变换器拓扑,并重点分析了该拓扑结构的特点和工作过程。通过在常规的Buck电路中增加少量L、C、D器件,使主功率开关管和功率二极管可以平缓地切换工作电流,该方法提高了变换器可靠性和电磁兼容性。用Pspice对该电路拓扑进行了仿真,并给出了基于该电路拓扑研制的90kWDC/DC变换器的开关波形和效率曲线。该变换器已经成功地应用在国内自主研发的燃料电池城市客车中,各项技术指标均满足使用要求。
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| 关 键 词： | 燃料电池 电动汽车 DC/DC变换器 |
| 文章编号： | 1006-8937(2006)05-0003-03 |
| 修稿时间： | 2006年2月10日 |
Research on high-power Buck DC/DC convertor for fuel cell electric vehicle |
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| FENG Yong-bo,QI Bo-jin,WANG Dian-long.Research on high-power Buck DC/DC convertor for fuel cell electric vehicle[J].Technological Development of Enterprise,2006,25(5):3-5. |
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| Authors: | FENG Yong-bo QI Bo-jin WANG Dian-long |
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| Abstract: | Aiming at the demands of the high-power DC/DC convertor for fuel cell electric vehicle,a new soft switching-current Buck DC/DC circuit topology for FCEV is proposed,and its working status and characteristic are particularly analyzed.The main power switch and diode current are working in soft switching status by appending some L、C、D parts in basic buck circuit.The developed convertor's EMC and reliability are improved.The circuit is emulated with pspice software and switch waveform,efficiency curve of 90kW DC/DC convertor developed based on the topology are given.The convertor is successfully used in the domestic fuel cell city bus and all technical indexes are fulfilled. |
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| Keywords: | fuel cell electric vehicle DC/DC convertor |
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