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Novel switched-coupled-inductor quasi-Z-source network with enhanced boost capability

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Abstract

In this paper, a novel impedance network referred to as a high-gain switched-coupled-inductor quasi-Z-source network (hgSCL-qZSN) is presented. The proposed topology employs a two-winding switched-coupled-inductor and a switched-capacitor in the impedance network, which offers a higher voltage boost capability when compared to most of the existing ZS-based topologies. In addition, the proposed SCL-qZSN has a low peak magnetizing current, which leads to a smaller core volume. This, in turn, reduces costs as well as core/winding losses. Moreover, to produce higher voltage gains, the presented hgSCL-qZSN requires lower winding turn ratios and shoot-through (ST) ratios, which leads to lower voltage stresses on the passive and active components. A detailed theoretical analysis of the proposed topology is presented in this paper, followed by a number of experimental results.

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Authors and Affiliations

  1. Department of Electrical and Computer Engineering, University of Birjand, Birjand, Iran

    Mehran Moslehi Bajestan & Mohammad Ali Shamsinejad

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  1. Mehran Moslehi Bajestan
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  2. Mohammad Ali Shamsinejad
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Correspondence to Mehran Moslehi Bajestan.

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Moslehi Bajestan, M., Shamsinejad, M.A. Novel switched-coupled-inductor quasi-Z-source network with enhanced boost capability. J. Power Electron. 20, 1343–1351 (2020). https://doi.org/10.1007/s43236-020-00128-1

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  • DOI: https://doi.org/10.1007/s43236-020-00128-1

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