A MULTI-MODAL COMBINATION Y-SOURCE INVERTER

Ma Jianwei; Liu Hongpeng; Wei Lai; Zhang Wei; Wang Wei

doi:10.19912/j.0254-0096.tynxb.2023-1037

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Acta Energiae Solaris Sinica ›› 2024, Vol. 45 ›› Issue (11) : 227-238. DOI: 10.19912/j.0254-0096.tynxb.2023-1037

A MULTI-MODAL COMBINATION Y-SOURCE INVERTER

Ma Jianwei¹, Liu Hongpeng¹, Wei Lai¹, Zhang Wei¹, Wang Wei²

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Abstract

Addressing the issues of insufficient boost capacity and high shoot-through current in coupled inductance impedance source inverters, this article introduces the multi-modal combination method into the Y-source impedance network and proposes an multi-modal combination Y-source inverter. A detailed analysis was conducted on the mode combination methods, corresponding modulation strategy, and voltage current relationship of the proposed inverter, and the boost ratio and key device stress were derived. The multi-modal combination method introduces a new influence factor into the boost ratio of the proposed inverter. Compared to improved Y-source inverter and high step-up Y-source inverter, it can achieve higher boost capability at the same winding coefficient K and direct duty cycle d. At the same time, it has lower diode voltage stress and suppresses the shoot-through current. Finally, the feasibility and superiority of the proposed inverter were verified by building a 200 W experimental platform.

Key words

coupled inductance / Y-source inverter / modulation strategy / multi-modal combination / voltage stress / shoot-through current

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Ma Jianwei, Liu Hongpeng, Wei Lai, Zhang Wei, Wang Wei. A MULTI-MODAL COMBINATION Y-SOURCE INVERTER[J]. Acta Energiae Solaris Sinica. 2024, 45(11): 227-238 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1037

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