| 一种新型逆变桥臂无源无损耗吸收电路 |
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| 引用本文： | 郑文娟,李晓帆,陈俊. 一种新型逆变桥臂无源无损耗吸收电路[J]. 电力电子技术, 2007, 41(6): 51-53 |
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| 作者姓名： | 郑文娟 李晓帆 陈俊 |
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| 作者单位： | 华中科技大学,湖北,武汉,430074;华中科技大学,湖北,武汉,430074;华中科技大学,湖北,武汉,430074 |
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| 摘 要： | 提出一种适用于逆变桥臂的无源无损耗吸收电路.该电路采用了附加最少元件数的优化结构,把吸收能量集中传输至一个储能电容,再通过谐振过程将能量回馈至直流母线.该拓扑结构无源、无电阻相关损耗,主开关管的关断冲击电压和开通电流过冲都很小,且拓扑简单,性能良好.与之相对应,给出了换流分析、解析描述以及仿真、实验结果.由此验证了该方案的正确性和有效性.
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| 关 键 词： | 变换器 吸收/软开关 |
| 文章编号： | 1000-100X（2007）06-0051-03 |
| 修稿时间： | 2006-12-05 |
A Novel Passive Lossless Snubber for Inverter Bridge Legs |
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| ZHENG Wen-juan,LI Xiao-fan,CHEN Jun. A Novel Passive Lossless Snubber for Inverter Bridge Legs[J]. Power Electronics, 2007, 41(6): 51-53 |
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| Authors: | ZHENG Wen-juan LI Xiao-fan CHEN Jun |
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| Abstract: | This paper presents a novel passive snubber circuit suitable for inverter bridge leg modules.The optimized configuration is adopted in the main snubber circuit with the minimum number of additional components.Being firstly transferred into a buffer capacitor,the snubber energy is recovered into the DC rail, based on a series of resonance.The circuit has no resistance loss,and the voltage and current stress of the main switch is low.Operation analysis,parameter designs are presented along with the simulation and experimental confirmation. |
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| Keywords: | conerter snubber/soft switching |
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