| 一种新型高功率逆变桥臂无源无损耗吸收电路 |
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| 引用本文： | 邓焰,吴燮华,何湘宁,钱照明. 一种新型高功率逆变桥臂无源无损耗吸收电路[J]. 中国电机工程学报, 2000, 20(3): 5-9 |
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| 作者姓名： | 邓焰 吴燮华 何湘宁 钱照明 |
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| 作者单位： | 浙江大学电力电子技术研究所,浙江省,杭州市,310027 |
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| 基金项目： | 浙江省自然科学基金,青年科技人才专项资金!RC980 3 0 |
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| 摘 要： | 提出一种适用于逆变桥臂模块的吸收电路。在吸收回路采用了附加元件数最小的优化结构,把吸收能量集中传输至一中间电容,再用以正激谐振变换器为基本原理的互感器将其回馈到直流母线。整个方案为无源、无电阻相关损耗,主开关附加稳态应力可控,并解决了变压器磁通复位所致二极管高电压问题。电路解析分析、仿真波形及实验结果也同文给出。
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| 关 键 词： | 逆变桥 吸收电路 能量回馈 谐振 逆变桥臂 |
| 文章编号： | 0258-8013 (2000) 03-0005-05 |
| 修稿时间： | 1999-02-02 |
A NOVEL PASSIVE LOSSLESS SNUBBER FOR POWER INVERTER BRIDGE LEGS |
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| DENG Yan,WU Xie-hua,HE Xiang-ning,QIAN Zhao-ming. A NOVEL PASSIVE LOSSLESS SNUBBER FOR POWER INVERTER BRIDGE LEGS[J]. Proceedings of the CSEE, 2000, 20(3): 5-9 |
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| Authors: | DENG Yan WU Xie-hua HE Xiang-ning QIAN Zhao-ming |
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| Abstract: | This paper presents a novelpassive snubber circuit suitable for inverter bridge leg modules. The optimizedconfiguration is adopted in the main snubber circuit with the minimum number of additionalcomponents. Being firstly transferred into a buffer capacitor, the snubber energy isrecovered into the DC rail via a simple transformer based on the principle of resonantforward conversion. Extra electrical stress on the main power switches is controllable andsimple way's found as well solution for transformer-magnetic-reset-related high voltageproblem across the clamping diodes. Mathematical analysis, Pspice simulation andexperimental results confirm the effectiveness of the proposed snubber scheme. |
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| Keywords: | inverter snubber energy recovery resonance |
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