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High step-up high step-down bidirectional DC/DC converter

机译:高升压高降压双向DC / DC转换器

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摘要

In this study, a new high step-up high step-down bidirectional dc-dc converter is proposed. In the proposed converter, the voltage conversion ratio is increased by using two coupled inductors and switched capacitor circuit in both boost and buck operations. The proposed bidirectional converter in comparison with other presented high-voltage gain boost converters with two coupled inductors in the literature has the highest voltage conversion ratio. In this study, the proposed topology is analysed in all operating modes and the current and voltage stresses of all switches, voltage gain and maximum and minimum current through the inductors are calculated for both boost and buck operations. Finally, the accuracy of the obtained analytical results and correct operation of the proposed converter are verified through PSCAD/EMTDC simulation and experimental results.
机译:在这项研究中,提出了一种新的高升压高降压双向dc-dc转换器。在提出的转换器中,在升压和降压操作中都通过使用两个耦合电感器和开关电容器电路来提高电压转换率。与文献中提出的带有两个耦合电感器的其他高压增益升压转换器相比,该双向转换器具有最高的电压转换率。在本研究中,在所有工作模式下分析了拟议的拓扑,并针对升压和降压操作计算了所有开关的电流和电压应力,通过电感的电压增益以及最大和最小电流。最后,通过PSCAD / EMTDC仿真和实验结果验证了所获得分析结果的准确性和拟议转换器的正确运行。

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