Zero-current-transition PWM DC-DC converters using a new zero-current-switching PWM switch cell

The 25th International Telecommunications Energy Conference, 2003. INTELEC '03. Pub Date : 2006-07-10 DOI:10.1049/IP-EPA:20050146

Chien-Ming Wang

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引用次数: 11

Abstract

A new family of zero-current-switching (ZCS) pulsewidth-modulated (PWM) converters which uses a new ZCS PWM switch cell is presented in this paper. The main switch and auxiliary switch operate at zero-current-switching turn on and turn off, and the all passive semiconductor devices in the ZCS-PWM converter operate at zero-voltage-switching (ZVS) turn on and turn off. Besides operating at constant frequency and with reduced commutation losses, these new converters have no additional current stress in the main switch in comparison to the hard switching converter counterpart. The PWM switch model and state-space averaging approach is used to estimate and examine the steady-state and dynamic character of system. The new family of ZCS-PWM converters is suitable for high-power application using insulated gate bipolar transistor (IGBT's). The principle of operation, theoretical analysis, and experimental results of the new ZCS-PWM boost converter, rated 1 kW and operating at 30 kHz, are provided in this paper to verify the performance of this new family of converters.

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零电流转换PWM DC-DC变换器采用一种新的零电流开关PWM开关单元

介绍了一种新型零电流开关脉宽调制(PWM)变换器，该变换器采用一种新型的零电流开关脉宽调制单元。主开关和辅助开关工作于零电流开关的导通和关断，ZCS-PWM变换器中的所有无源半导体器件工作于零电压开关(ZVS)的导通和关断。除了在恒定频率下工作和减少换流损耗外，与硬开关变换器相比，这些新型变换器在主开关中没有额外的电流压力。采用PWM开关模型和状态空间平均方法对系统的稳态和动态特性进行估计和检测。新的ZCS-PWM变换器系列适用于使用绝缘栅双极晶体管(IGBT)的大功率应用。本文给出了额定功率为1kw、工作频率为30khz的新型ZCS-PWM升压变换器的工作原理、理论分析和实验结果，以验证该新型变换器的性能。

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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来源期刊

The 25th International Telecommunications Energy Conference, 2003. INTELEC '03.

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