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首页> 外文期刊>Power Electronics, IET >Analysis of voltage and current stresses of a generalised step-up DC-DC converter
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Analysis of voltage and current stresses of a generalised step-up DC-DC converter

机译：通用升压型DC-DC转换器的电压和电流应力分析

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摘要

A non-isolated DC-DC converter with high-voltage gain and low-voltage stress on switches is proposed in this study. For absorption of energy n stages of diode-capacitor-inductor (D-C-L) units are used at the input that results in higher voltage gains. Actually, the proposed converter generalises the voltage lift circuit and combines it with a voltage multiplier cell. Therefore comparing to structures with one stage of D-C-L unit, it will be feasible to achieve supposed voltage gain at lower duty cycles. Lower values of duty cycle will result in increasing of converter controllability and increasing of operation region. The generalised analysis of the voltage and current stresses of the semiconductors and power components is carried out. The circuit performance will be compared with other solutions that were previously proposed for voltage step-up in the terms of voltage gain, switch and output diode voltage stress and number of components. The carried mathematical analysis and circuit performance are validated through both simulation and experimental results that match each other reasonably well.
机译：提出了一种在开关上具有高压增益和低压应力的非隔离式DC-DC转换器。为了吸收能量，在输入处使用n级二极管-电容器-电感器（D-C-L）单元，这会导致更高的电压增益。实际上，所提出的转换器概括了升压电路，并将其与电压倍增器单元组合在一起。因此，与具有一级D-C-L单元的结构相比，在较低占空比下获得假定的电压增益将是可行的。较低的占空比值将导致转换器的可控性增加，工作区域增大。对半导体和功率组件的电压和电流应力进行了广义分析。在电压增益，开关和输出二极管电压应力以及组件数量方面，将电路性能与先前提出的其他用于升压的解决方案进行比较。所进行的数学分析和电路性能通过仿真和实验结果进行了验证，二者相互吻合得很好。

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  • 来源
    《Power Electronics, IET》 |2014年第6期|1347-1361|共15页
  • 作者

    Nouri T.; Hosseini S.H.; Babaei E.;

  • 作者单位

    Faculty of Electrical and Computer Engineering, University of Tabriz, Tabriz, Iran|c|;

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