| 无源软开关三电平Buck/Boost电路 |
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| 引用本文： | 刘振来,邓焰,何湘宁,吴洪洋. 无源软开关三电平Buck/Boost电路[J]. 兰州大学学报(自然科学版), 2006, 42(1): 115-119 |
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| 作者姓名： | 刘振来 邓焰 何湘宁 吴洪洋 |
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| 作者单位： | 1. 河西学院物理系,甘肃,张掖,734000
2. 浙江大学电力电子技术研究所,浙江,杭州,310027 |
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| 基金项目： | 台达电力电子科教发展基金 |
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| 摘 要： | 为了提高系统的效率,且不增加控制的复杂性,将一种无原理性过压的无源无损吸收电路单元引入该电路.文中详细地介绍了Buck/Boost电路的三电平无源无损软开关电路的原理和工作过程,给出了相应的设计要点,并进行了仿真研究,所有功率器件均工作在软开关状态.
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| 关 键 词： | 多电平Buck/Boost变换器 无源无损吸收单元 软开关 |
| 文章编号： | 0455-2059（2006）01-0115-05 |
| 收稿时间： | 2004-11-15 |
| 修稿时间： | 2004-11-15 |
A three-level Buck/Boost circuit with passive soft-switching |
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| LIU Zhen-lai,DENG Yan,HE Xiang-ning,WU Hong-yang. A three-level Buck/Boost circuit with passive soft-switching[J]. Journal of Lanzhou University(Natural Science), 2006, 42(1): 115-119 |
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| Authors: | LIU Zhen-lai DENG Yan HE Xiang-ning WU Hong-yang |
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| Affiliation: | 1. Department of Physics, Hexi University, Zhangye 734000, Gansu, China; 2. Institute of Power Electronics, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | Two passive lossless snubber cells are added to the three-level circuit to soften the switching processes of the switches and freewheeling diodes and the principle and implementation approaches of the three-level circuit are described. A three-level Buck/Boost topology circuit's operating principles and design considerations are discussed in detail. At last, the simulated result indicates that the circuit can realize the three-level function and increase system efficiency as well as lead to not any over-voltage stress on main power switches. |
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| Keywords: | Buck/Boost converter passive lossless snubber cell soft switching |
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