NOVEL HIGH GAIN DC-DC BOOST CONVERTER WITH QUASI-Z-SOURCE NETWORK

Zhang Tao; Hou Pengpeng; Wang Yaobin; Li Yunfei; Han Qinglin

doi:10.19912/j.0254-0096.tynxb.2023-0400

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Acta Energiae Solaris Sinica ›› 2024, Vol. 45 ›› Issue (7) : 558-566. DOI: 10.19912/j.0254-0096.tynxb.2023-0400

NOVEL HIGH GAIN DC-DC BOOST CONVERTER WITH QUASI-Z-SOURCE NETWORK

Zhang Tao^1,2, Hou Pengpeng¹, Wang Yaobin¹, Li Yunfei¹, Han Qinglin¹

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Abstract

A novel high step-up quasi-Z-source DC-DC boost converter （HSQZSC） is proposed in the article to address the shortcomings of low voltage gain and high component voltage stress in traditional quasi-Z-source impedance network DC-DC boost converters. Firstly, the working principles of the two modes of operation of the HSQZSC converter are analyzed, and their steady-state analysis and parameter design are conducted. Secondly, a performance comparison with the proposed Z-source converter shows that the HSQZSC converter has the advantages of high voltage gain and low component voltage stress. Then, a state-space model is established for small-signal analysis, stability analysis, and controller design. Finally, a 100 W physical prototype is built, and experimental results verify the feasibility and effectiveness of the HSQZSC converter.

Key words

PV power generation / DC-DC converters / topology / quasi-Z-source / high gain

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Zhang Tao, Hou Pengpeng, Wang Yaobin, Li Yunfei, Han Qinglin. NOVEL HIGH GAIN DC-DC BOOST CONVERTER WITH QUASI-Z-SOURCE NETWORK[J]. Acta Energiae Solaris Sinica. 2024, 45(7): 558-566 https://doi.org/10.19912/j.0254-0096.tynxb.2023-0400

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