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Integrated Three-Voltage-Booster DC-DC Converter to Achieve High Voltage Gain with Leakage-Energy Recycling for PV or Fuel-Cell Power Systems

机译:集成式三电压升压型DC-DC转换器,通过泄漏能量回收实现光伏或燃料电池电源系统的高压增益

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摘要

[[abstract]]n this paper, an integrated three-voltage-booster DC-DC (direct current to direct current) converter is proposed to achieve high voltage gain for renewable-energy generation systems. The proposed converter integrates three voltage-boosters into one power stage, which is composed of an active switch, a coupled-inductor, five diodes, and five capacitors. As compared with conventional high step-up converters, it has a lower component count. In addition, the features of leakage-energy recycling and switching loss reduction can be accomplished for conversion efficiency improvement. While the active switch is turned off, the converter can inherently clamp the voltage across power switch and suppress voltage spikes. Moreover, the reverse-recovery currents of all diodes can be alleviated by leakage inductance. A 200 W prototype operating at 100 kHz switching frequency with 36 V input and 400 V output is implemented to verify the theoretical analysis and to demonstrate the feasibility of the proposed high step-up DC-DC converter.
机译:[[摘要]在本文中,为了实现可再生能源发电系统的高电压增益,提出了一种集成的三电压升压DC-DC(直流到直流)转换器。拟议的转换器将三个升压器集成到一个功率级中,该功率级由一个有源开关,一个耦合电感器,五个二极管和五个电容器组成。与传统的高升压转换器相比,它具有更少的组件数。另外,可以实现泄漏能量再循环和减少开关损耗的特征,以提高转换效率。当有源开关关闭时,转换器可以固有地钳位电源开关两端的电压并抑制电压尖峰。而且,所有二极管的反向恢复电流可以通过漏感来减轻。实施了一个200 W原型,该开关在100 kHz开关频率下工作,具有36 V输入和400 V输出,以验证理论分析并证明所提出的高升压DC-DC转换器的可行性。

著录项

  • 作者

    Shen, Chih-Lung;

  • 作者单位
  • 年度 2017
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  • 原文格式 PDF
  • 正文语种 en
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