A new ZCT-ZVT PWM interleaved DC-DC boost converter

城市设计 Pub Date : 2015-09-01 DOI:10.1109/OPTIM.2015.7427026

N. S. Ting, Yakup Sahin, I. Aksoy

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引用次数: 11

Abstract

In this paper, a new ZCT-ZVT PWM interleaved DC-DC boost converter with an active snubber cell is proposed. By considering interleaved approach, this topology minimizes the ripple of the output voltage and input current. Also, it provides to be reduced the extra current stress on the main devices. In proposed new converter, all of the semiconductor components softly turn on and turn off with Zero Voltage Switching (ZVS) or Zero Current Switching (ZCS). The main feature of proposed converter is that the extra current and voltage stresses do not occur on the main switches and main diodes. Also, the current stress on the auxiliary switch is at acceptable level. In the proposed converter, the main switch perfectly turns on with Zero Voltage Transition (ZVT) and turns off with Zero Current Transition (ZCT). Therewith, the auxiliary switch turns on with ZCS and turns off with ZVS. Additionally, the proposed converter smoothly operates under light load conditions and wide input line voltage. Another advantage of this converter is that the soft switching is achieved by just one auxiliary switch. The theoretical analysis of the proposed converter is made. The operating stages, the waveforms and the simulation results of the proposed converter operated for 1.5 kW and 100 kHz is given in detail.

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一种新型ZCT-ZVT脉宽调制交错DC-DC升压变换器

本文提出了一种带有有源缓冲单元的新型ZCT-ZVT PWM交错DC-DC升压变换器。通过考虑交错方式，该拓扑将输出电压和输入电流的纹波降到最低。此外，它还提供了减少对主要设备的额外电流压力。在提出的新型变换器中，所有的半导体元件都通过零电压开关(ZVS)或零电流开关(ZCS)软开关和关断。所提出的变换器的主要特点是额外的电流和电压应力不会发生在主开关和主二极管上。同时，辅助开关上的电流应力处于可接受的水平。在所提出的变换器中，主开关在零电压转换(ZVT)时完美打开，在零电流转换(ZCT)时完美关闭。辅助开关在ZCS时导通，在ZVS时关断。此外，该变换器在轻负载和宽输入电压条件下运行平稳。该变换器的另一个优点是只需一个辅助开关即可实现软开关。对所提出的变换器进行了理论分析。文中详细介绍了该变换器在1.5 kW和100khz工作时的工作级、波形和仿真结果。

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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城市设计

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