A soft-switching inverter using a voltage clamp soft-switching step-up/down DC link

2012 IEEE Third International Conference on Sustainable Energy Technologies (ICSET) Pub Date : 2012-11-26 DOI:10.1109/ICSET.2012.6357411

Chien-Ming Wang, Chang-Hua Lin, Hsin-Yi Lin, Y. Lai, Maw-Yang Liu

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引用次数: 2

Abstract

A soft-switching pulse-width-modulation single-phase inverter using a voltage clamp soft-switching step-up/down dc link is proposed in this paper. The proposed voltage clamp soft-switching step-up/down not only provides the switches in the section of conventional PWM buck inverter operate at zero-voltage-switching (ZVS), but it has a step-up/down input voltage function and the switches in itself also operate at ZVS. Thus, except for the switch in the section of ZVS-PWM auxiliary circuit, all power semiconductor devices in proposed inverter operate at ZVS turn on and turn off. The switch in the section of ZVS-PWM auxiliary circuit operates at zero-current-switching (ZCS) turn-on and turn-off. Besides operating at constant frequency, the proposed inverter has no voltage stress and current stress on the main switch compared to the hard switching inverter counterpart. Auxiliary components rated at very small current are used. The principle of operation, theoretical analysis, and experimental results of the proposed soft-switching inverter, rated 1 kW and operated at 40 kHz, are provided in this paper to verify the performance.

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采用电压钳位软开关升压/降压直流链路的软开关逆变器

本文提出了一种采用电压钳位软开关升压/降压直流链路的软开关脉宽调制单相逆变器。所提出的电压钳位软开关升压/降压不仅使传统PWM降压逆变器部分的开关工作在零电压开关(ZVS)，而且具有升压/降压输入电压功能，开关本身也工作在零电压开关。因此，除ZVS- pwm辅助电路部分的开关外，逆变器中所有功率半导体器件均工作在ZVS导通和关断状态。ZVS-PWM辅助电路部分的开关工作于零电流开关(ZCS)导通和关断。除了恒频工作外，与硬开关逆变器相比，该逆变器在主开关上没有电压应力和电流应力。使用额定电流很小的辅助元件。本文给出了额定功率为1kw、工作频率为40khz的软开关逆变器的工作原理、理论分析和实验结果，以验证其性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2012 IEEE Third International Conference on Sustainable Energy Technologies (ICSET)

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