一种用于PWM变换器中所有有源开关的改进ZVZCS整流单元

APEC 2000. Fifteenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.00CH37058) Pub Date : 2000-02-06 DOI:10.1109/APEC.2000.822590

Seung-Hee Ryu, Dong-Yun Lee, S. Yoo, D. Hyun

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引用次数: 2

摘要

本文提出了一种具有最小附加元件的改进型ZVZCS换相单元，可在主、辅助开关和PWM变换器中的二极管的通断和通断时提供软开关。所提出的软开关技术不仅适用于少数载流子半导体器件，也适用于多数载流子半导体器件。所提出的ZVZCS整流单元的辅助开关与主开关并联，因此，在主开关和二极管上没有电流应力。以PWM升压变换器拓扑结构为例，从理论上分析了所提出的ZVZCS换向单元的工作原理。理论分析、仿真和实验结果验证了基于ZVZCS换向单元的PWM升压变换器拓扑结构的有效性。

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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A modified ZVZCS commutation cell for all active switches in PWM converters

In this paper, a modified ZVZCS commutation cell with minimum additional components, which provides soft switching at both turn-on and turn-off of main and auxiliary switches as well as diodes in PWM converters, is presented. The proposed soft-switching technique is suitable for not only minority but also majority carrier semiconductor devices. The auxiliary switch of the proposed ZVZCS commutation cell is in parallel with the main switch, and therefore, there is no current stress on the main switch and diode. The operation principles of the proposed ZVZCS commutation cell are theoretically analyzed using the PWM boost converter topology as an example. Theoretical analysis, simulation and experimental results verify the validity of the PWM boost converter topology with the proposed ZVZCS commutation cell.

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APEC 2000. Fifteenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.00CH37058)

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