A NOVEL INTERLEAVED PARALLEL QUASI-Z SOURCE HIGH GAIN CONVERTER

Zhang Tao; Li Yunfei; Zhang Li; Han Qinglin; Zhang Yafei; Bai Wenlong

doi:10.19912/j.0254-0096.tynxb.2023-1948

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (3) : 272-279. DOI: 10.19912/j.0254-0096.tynxb.2023-1948

A NOVEL INTERLEAVED PARALLEL QUASI-Z SOURCE HIGH GAIN CONVERTER

Zhang Tao^1,2, Li Yunfei¹, Zhang Li^1,3, Han Qinglin¹, Zhang Yafei¹, Bai Wenlong¹

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Abstract

Aiming at the problem that traditional interleaved parallel high-gain converters often need a larger duty cycle to achieve a higher output voltage, A novel interleaved parallel switched capacitor networks and quasi-Z-source converter is proposed. IPSCN-QZS structure, by changing the inductors of the traditional interleaving parallel high-gain converter into the quasi-Z-source network and adding the switched-capacitor unit to form a boost structure, to achieve high voltage gain. Firstly, the working principle of IPSCN-QZS converter is analyzed in detail, and voltage gain, diode and switching tube voltage stress are derived. Finally, a 947W prototype was built for verification. The experimental results were consistent with the results of Matlab/Simulink simulation software and theoretical analysis, which verified the correctness and feasibility of IPSCN-QZS converter.

Key words

high gain / switched-capacitor / quasi-Z-source / converter / Interleaved parallel

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Zhang Tao, Li Yunfei, Zhang Li, Han Qinglin, Zhang Yafei, Bai Wenlong. A NOVEL INTERLEAVED PARALLEL QUASI-Z SOURCE HIGH GAIN CONVERTER[J]. Acta Energiae Solaris Sinica. 2025, 46(3): 272-279 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1948

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