Single-Phase Full-Bridge Soft-Switching Inverter with Passive Device-Assisted Commutation

被引：0
|
作者：
Wang Q. [1 ,2 ]
Yue Y.-S. [1 ,2 ]
Wang T.-S. [1 ,2 ]
Liu X.-Q. [1 ,2 ]
机构：
[1] College of Information and Control Engineering, Liaoning Shihua University, Fushun, 113001, Liaoning
[2] National Experimental Teaching Demonstration Center of Petrochemical Process Control, Fushun, 113001, Liaoning
来源：
Wang, Qiang (master2007@126.com) | 2018年 / Chinese Institute of Electronics卷 / 46期
关键词：
Dead-time; Inverter; Passive; Soft-switching; Switching loss;
D O I：
10.3969/j.issn.0372-2112.2018.09.036
中图分类号：
学科分类号：
摘要：
A single-phase full-bridge soft-switching inverter with passive device-assisted commutation is proposed to improve conversion efficiency of the single-phase full-bridge inverter. The soft-switching action of the switch devices is achieved by adding an auxiliary resonant circuit to bridge arms of the inverter. There is no auxiliary switch device in the auxiliary resonant circuit but few passive devices such as inductances, capacitances, diodes, and so on, which is helpful to reduce the cost of the auxiliary circuit and can't complicate the control strategy of the inverter. In addition, freewheeling of load current can be realized via the auxiliary circuit and the distortion ratio of output current waveforms of the inverter is reduced when the inverter is in the dead state, which reduces the effect of dead-time on the output current of the inverter. The operation process of the circuit is analyzed in detail. The experimental verification is carried out on a 4kW one-phase laboratory prototype. Experimental results verify that the switch devices of the inverter can achieve soft-switching in both light load and full load, the distortion ratio of output current waveforms of the inverter is improved. Therefore, the single-phase full-bridge soft-switching topology with passive device-assisted commutation has an important significance for improving the performance of inverter. © 2018, Chinese Institute of Electronics. All right reserved.
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页码：2295 / 2298
页数：3
相关论文
共 6 条
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