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首页> 外文期刊>Power Electronics, IET >High step-up isolated dc–dc converter with single input and double output and soft-switching performance for renewable energy applications
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High step-up isolated dc–dc converter with single input and double output and soft-switching performance for renewable energy applications

机译:具有单输入,双输出和软开关性能的高升压隔离式dc-dc转换器,适用于可再生能源应用

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摘要

A single-input double-output dc-dc isolated high step-up dc-dc converter with soft-switching feature is presented in this study. The concept is to utilise quadrupler technique to reach high voltage gain without large duty cycle. Additionally, soft-switching operation for all power switches and diodes is realised to reduce overall power losses and increase power conversion efficiency over a broad range. Furthermore, the leakage inductance energy of transformer is recycled to output with an active clamp circuit. Thus, the voltage stress on main switch is reduced and a low-voltage-rated metal-oxide-semiconductor field-effect transistors (with low R-DS(on)) can be used. Moreover, low input current ripple feature is helpful to lengthen life time of renewable energy power sources. Finally, the analysis is described in detail and performance of the proposed converter has been verified through experimental results.
机译:这项研究提出了具有软开关功能的单输入双输出DC-DC隔离式高升压DC-DC转换器。其概念是利用四倍频技术来实现高电压增益而无需大占空比。另外,实现了所有电源开关和二极管的软开关操作,以减少总体功率损耗并在较大范围内提高功率转换效率。此外,通过有源钳位电路将变压器的漏感能量回收利用。因此,可以减小主开关上的电压应力,并且可以使用低额定电压的金属氧化物半导体场效应晶体管(R-DS(on)低)。此外,低输入电流纹波功能有助于延长可再生能源的使用寿命。最后,对分析进行了详细描述,并通过实验结果验证了所提出转换器的性能。

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