Volume 21, Issue 2 (JIAEEE Vol.21 No.2 2024)
Journal of Iranian Association of Electrical and Electronics Engineers 2024, 21(2): 0-0 |
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gheisari B, ershadi M H. Analysis and implementation of a soft-switching high step-up quasi Z-source dc-dc converter with low voltage stress. Journal of Iranian Association of Electrical and Electronics Engineers 2024; 21 (2)
URL: http://jiaeee.com/article-1-1597-en.html
URL: http://jiaeee.com/article-1-1597-en.html
1 Department of Electrical Engineering, Khomeinishahr Branch, Islamic Azad University, Khomeinishahr, Iran
Abstract: (376 Views)
In this paper, a new high step-up converter is presented. In the proposed converter, a quasi Z-source converter is used and its voltage gain is increased via using coupled inductors. In this way, moreover to the voltage gain, the voltage stress of the switches are improved. In order to provide the soft-switching condition, an auxiliary circuit is used in which only a switch, a diode, and a coupled inductor are needed. In the proposed converter the voltage stress of both switch are much smaller than the output voltage. Another advantage of the proposed converter is having a common ground between input and output. In this paper, at first other high step-up converters which are published in the literature are explained and reviewed to find out the main challenges in high step-up application. Then, the proposed converter and its operational principals alongside with its design procedure are presented. After that, in order to justify the analysis, the simulation and experimental results of the converter are reported. Then, a comparison between the proposed converter and some other high step-up converters are made to show the converter effectively.
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