| Boost ZCT-PWM变换器的改进及仿真分析 |
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| 引用本文： | 郑晓兰,伊林林,李瑞平.Boost ZCT-PWM变换器的改进及仿真分析[J].现代电子技术,2007,30(20):137-139. |
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| 作者姓名： | 郑晓兰 伊林林 李瑞平 |
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| 作者单位： | 贵州大学,电气工程学院,贵州,贵阳,550003 |
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| 摘 要： | 针对传统的Boost ZCT-PWM变换器中存在的主开关管硬开通和辅助开关管硬关断的问题,提出一种改进型的Boost ZCT-PWM变换器,使主开关管零电流开通,辅助开关管零电流通断,并且特别适用于IGBT作为开关器件的高电压、大功率应用场合。分析电路的工作原理并用PSpice仿真软件进行仿真研究。仿真结果表明所有开关器件实现了软开关,变换器的效率得到提高。
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| 关 键 词： | 零电流转换 脉宽调制 软开关 |
| 文章编号： | 1004-373X（2007）20-137-03 |
| 收稿时间： | 2007-04-13 |
| 修稿时间： | 2007年4月13日 |
Improvement and Simulation Analysis of the Boost ZCT- PWM Converter |
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| ZHENG Xiaolan,YI Linlin,LI Ruiping.Improvement and Simulation Analysis of the Boost ZCT- PWM Converter[J].Modern Electronic Technique,2007,30(20):137-139. |
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| Authors: | ZHENG Xiaolan YI Linlin LI Ruiping |
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| Institution: | Electrical Engineering Institute,Guizhou University,Guiyang,550003,China |
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| Abstract: | Aiming at the problems of the main switch hard turning on and the auxiliary switch working under hard switching conditions in the traditional Boost ZCT-PWM converter,an improved Boost ZCT-PWM converter is introduced in this paper,the main switch is turned on under zero-current,and the auxiliary switch is turned on and off under zero-current.It is very attractive for high power application where IGBT is predominantly used as the power switches.The principle of its operation is analyzed and simulation analysis is given by the famous CAD simulation software-PSpice.Its simulation results prove that all the switches in soft switching state and the efficiency of the converter is improved. |
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| Keywords: | Pspice |
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