| 谐振过渡软开关单相PWM并网逆变器 |
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| 引用本文： | 史丽萍,张建伟,阎同东,樊丽丽,张文胜.谐振过渡软开关单相PWM并网逆变器[J].电源技术,2010,34(1). |
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| 作者姓名： | 史丽萍 张建伟 阎同东 樊丽丽 张文胜 |
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| 作者单位： | 中国矿业大学,信电学院,电力系统专业,江苏,徐州,221008 |
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| 摘 要： | 分析了对小功率光伏并网逆变器拓扑结构的要求,简单介绍了几种典型的并网逆变器的拓扑结构,指出了各个拓扑结构的优缺点、效率和适用场合。给出了一种利用软开关技术的单相全桥并网逆变器的拓扑结构(DC/AC),分析了其工作过程,通过谐振可以实现主功率开关的零电压开通和关断,而且辅助开关和二极管都是零电流开通和关断,大大减小了功率器件的开关损耗,提高了逆变器的效率。最后,介绍了开关器件的选择问题。
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| 关 键 词： | 并网逆变器 软开关技术 零电压 零电流 开关损耗 |
Resonant transition PWM soft-switching single-phase grid-connected inverter |
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| SHI Li-ping,ZHANG Jian-wei,YAN Tong-dong,FAN Li-li,ZHANG Wen-sheng.Resonant transition PWM soft-switching single-phase grid-connected inverter[J].Chinese Journal of Power Sources,2010,34(1). |
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| Authors: | SHI Li-ping ZHANG Jian-wei YAN Tong-dong FAN Li-li ZHANG Wen-sheng |
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| Affiliation: | Power System Professional;School of Information and Electrical Engineering;China University of Mining and Technology;Xuzhou Jiangsu 221008;China |
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| Abstract: | The requirements of the small power grid-connected photovoltaic inverter topology were analyzed and several typical topologies were introduced. The advantages, the disadvantages, the efficiency and the applications of each topology were pointed out. A novel topology of single-phase full-bridge inverter (DC/AC) with the soft-switch technology was given and its working process was analyzed. The main power switch could be open or closed zero-voltage by resonance, and the auxiliary and switches diodes could als... |
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| Keywords: | grid-connected inverter soft-switch technology zero-voltage zero-current switch-wastage |
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