| 采用一个软切换开关的PWM逆变器 |
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| 引用本文： | 周令琛. 采用一个软切换开关的PWM逆变器[J]. 贵州工业大学学报(自然科学版), 2005, 34(3): 53-58 |
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| 作者姓名： | 周令琛 |
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| 作者单位： | 上海第二工业大学电子电气工程学院,上海,201209 |
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| 摘 要： | 提出一种新的准谐振直流环节脉宽调制式(PWM)逆变器。该逆变器只采用一个开关器件来产生所有负载条件下的零电压开关(ZVS)间隙。此电路可灵活选择与任何PWM设备同步的谐振环节的开关瞬间，控制电路中可省去电流传感器。详细分析了此准谐振直流环节PWM逆变器的工作原理，提出了实现软开关的设计条件，并通过仿真研究完成了此电路在各种负载条件下运行的可行性分析。给出对三相感应电动机供电的新的准谐振直流环节PWM逆变器的实验结果。
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| 关 键 词： | 软开关 PWM ZVS |
| 文章编号： | 1009-0193(2005)03-0053-06 |
| 修稿时间： | 2005-03-21 |
A PWM Inverter with Single Switch of Soft Switching |
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| ZHOU Ling-chen. A PWM Inverter with Single Switch of Soft Switching[J]. Journal of Guizhou University of Technology(Natural Science Edition), 2005, 34(3): 53-58 |
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| Authors: | ZHOU Ling-chen |
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| Abstract: | A new quasi-resonant de-link inverter is presented in this paper. In the inverter only one switching device is used to produce zero voltage instants under all load conditions. The proposed circuit can flexibly select switching instants of the resonant link in synchronism with any PWM technique. Voltage and current sensors aren't needed in the control circuit. In the paper,the principle of operation and detailed analysis of the proposed inverter are presented and design considerations for achieving soft switching are given. A simulation study is carried out to study the feasibility of the proposed topology under various load conditions. The experimental results of the proposed inverter feeding three phases induction motor are obtained. |
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| Keywords: | soft switching PWM ZVS |
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