高效率三相谐振极逆变器

doi:10.12263/DZXB.20190910

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电子学报 ›› 2021, Vol. 49 ›› Issue (6) : 1224-1227. DOI: 10.12263/DZXB.20190910

学术论文

高效率三相谐振极逆变器

王强^1,2, 曹睿^1,2, 王天施^1,2, 刘晓琴^1,2

作者信息 +

High-Efficiency Three-Phase Resonant Pole Inverter

WANG Qiang^1,2, CAO Rui^1,2, WANG Tian-shi^1,2, LIU Xiao-qin^1,2

Author information +

文章历史 +

摘要

为优化三相逆变器的性能，提出了一种高效率三相谐振极逆变器.在各相桥臂上增设的辅助谐振电路参与逆变器的换流过程时，桥臂上的各主开关并联的谐振电容的电压能周期性形成零状态，使主开关能完成零电压软切换，而且辅助谐振电路中的各开关器件也能完成零电流软开通和零电压软关断.开关器件实现软切换能降低开关损耗，从而使逆变器实现高效率运行.文中分析了电路的工作流程.3kW样机上的实验结果表明主开关和辅助开关都处于软切换.因此，该拓扑结构对于研发高性能三相逆变器具有借鉴价值.

Abstract

In order to optimize the performance of three-phase inverter, a high efficiency three-phase resonant inverter is proposed. When the auxiliary resonant circuit on each phase leg works in the commutation process of the inverter, the voltage across the capacitor parallel with the main switch can periodically change to zero, so that the main switch device can achieve zero-voltage soft switching, and the switching devices in the auxiliary resonant circuit can achieve zero-voltage turn-on and zero-current turn-off. Soft switching can reduce switching loss and improve the efficiency of the inverter. In this paper, the working flow of the circuit is analyzed. The experimental results on the 3kW prototype show that both the main switch and the auxiliary switch achieve soft switching. Therefore, this topology structure has reference for the research and development of high performance three-phase inverter.

导出引用

王强, 曹睿, 王天施, 刘晓琴. 高效率三相谐振极逆变器[J]. 电子学报, 2021, 49(6): 1224-1227. https://doi.org/10.12263/DZXB.20190910

WANG Qiang, CAO Rui, WANG Tian-shi, LIU Xiao-qin. High-Efficiency Three-Phase Resonant Pole Inverter[J]. Acta Electronica Sinica, 2021, 49(6): 1224-1227. https://doi.org/10.12263/DZXB.20190910

中图分类号： TM464

参考文献

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