| 一种采用无源软开关吸收电路技术的新型高效DC/DC变换器 |
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| 引用本文： | 唐青松,吴强,曹怀志,车宪宁,彭方正.一种采用无源软开关吸收电路技术的新型高效DC/DC变换器[J].变流技术与电力牵引,2007(4):18-24. |
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| 作者姓名： | 唐青松 吴强 曹怀志 车宪宁 彭方正 |
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| 作者单位： | 株洲南车时代电气股份有限公司，株洲南车时代电气股份有限公司，株洲南车时代电气股份有限公司，Michigan State University Ece Department，株洲南车时代电气股份有限公司 湖南株洲412001 Michigan State University Ece Department，48823USA，湖南株洲412001，湖南株洲412001，48823USA，湖南株洲412001Michigan State University Ece Department，48823USA |
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| 摘 要： | 主要从4个方面叙述了采用无源软开关吸收电路技术70 kW的DC/DC变换器,即(1)无源吸收电路的工作原理;(2)PWM控制方式的选择和比较;(3)大功率高频变压器的设计步骤;(4)一次侧整流电路二极管过冲电压限制以及吸收电阻的选型分析.最后给出了试验波形和效率曲线.
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| 关 键 词： | 无源软开关吸收电路 全桥DC/DC变换器 高频变压器 无源软开关 无源吸收电路 电路技术 新型高效 变换器 Snubber Soft Switching Passive Converter High Efficiency 效率曲线 试验波形 选型分析 电阻 电压限制 过冲 二极管 整流电路 一次侧 设计 |
| 文章编号： | 1671-8410（2007）04-0018-07 |
| 修稿时间： | 2007-06-05 |
A Novel High Efficiency DC-DC Converter with Passive Soft Switching Snubber |
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| TANG Qing-song,WU Qiang,CAO Huai-zhi,CHE Xian-ning,PENG Fang-zheng.A Novel High Efficiency DC-DC Converter with Passive Soft Switching Snubber[J].Converter Technology & Electric Traction,2007(4):18-24. |
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| Authors: | TANG Qing-song WU Qiang CAO Huai-zhi CHE Xian-ning PENG Fang-zheng |
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| Institution: | 1.Zhuzhou CSR Tunes Electrical Co. LTD., Zhuzhou, Hunan 412001,China; 2. Michigan State University Ece Depaptment, 48823 USA |
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| Abstract: | This paper presents a novel high efficiency dc-dc converter with passive soft switching snubber. We focus on four major issues in high power dc-dc converters: 1) the operating principle of the passive snubber circuit; 2) selection of PWM control methods to reduce the voltage spike and power loss across switching devices; 3) step by sep to design a high power and high frequency transformer; and 4) the voltage oscillation problem in the secondary diode rectifier is addressed and selection of the snubber resistor. Experimental waveforms and efficiency curves are given to demonstrate the validity and features of the converter. |
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| Keywords: | passive soft switching snubber DC/DC converter high frequency transformer |
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