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首页> 外文期刊>Power Electronics, IET >High step-up dc–dc converter based on modified active switched-inductor and switched-capacitor cells
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High step-up dc–dc converter based on modified active switched-inductor and switched-capacitor cells

机译：基于改进的有源开关电感器和开关电容器单元的高升压DC-DC转换器

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摘要

A new high gain step-up dc-dc converter based on modified active switched-inductor (MASL) and switched-capacitor (SC) is proposed in this study. The proposed converter is based on the classical boost topology, in which the inductor is changed by the proposed MASL cell. This new cell allows the addition of more than two switched-inductors (SLs) to the classical boost topology, which is the most significant limitation of conventional active SL. Additionally, in the proposed converter, the output capacitor is replaced by an SC cell, increasing still more the voltage gain of it, which can be higher than 20 without using transformers or coupled inductors, and with lower voltage stress on the semiconductors and high efficiency. The principle of operation, theoretical static and dynamic analysis, design methodology and comparison with other non-isolated topologies present in the literature are approached in this study. The performance of the proposed converter is validated by interesting experimental results obtained from a 200 W prototype with an input voltage of 20 V, an output voltage of 400-600 V, switched frequency at 50 kHz and peak efficiency of 95%.
机译：本研究提出了一种基于改进的有源开关电感（MASL）和开关电容器（SC）的新的高增益升压DC-DC转换器。所提出的转换器基于经典升压拓扑，其中电感器由所提出的MASL单元改变。该新单元允许将多个开关电感（SLS）添加到经典升压拓扑中，这是传统有源SL的最显着限制。另外，在所提出的转换器中，输出电容由SC电池代替，仍然增加它的电压增益，其电压增益可以高于20，而无需使用变压器或耦合电感器，并且在半导体上具有较低的电压应力和高效率。本研究将近于经营，理论静态和动态分析，理论静态和动态分析，设计方法和与其他非隔离拓扑的比较。通过从200W原型获得的有趣实验结果，输入电压为20 V，输出电压为400-600V，开关频率为50kHz，达到50kHz的开关频率，峰值效率为50kHz，峰值效率为95％，验证了该转换器的性能。

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