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AuthorSun, Dongsen
AuthorGe, Baoming
AuthorYan, Xingyu
AuthorBi, Daqiang
AuthorZhang, Hao
AuthorLiu, Yushan
AuthorAbu-Rub, Haitham
AuthorBen-Brahim, Lazhar
AuthorPeng, Fang Zheng
Available date2022-11-15T11:58:48Z
Publication Date2014-02-10
Publication NameIEEE Transactions on Industrial Electronics
Identifierhttp://dx.doi.org/10.1109/TIE.2014.2304913
CitationSun, D., Ge, B., Yan, X., Bi, D., Zhang, H., Liu, Y., ... & Peng, F. Z. (2014). Modeling, impedance design, and efficiency analysis of quasi-$ Z $ source module in cascaded multilevel photovoltaic power system. IEEE Transactions on Industrial Electronics, 61(11), 6108-6117.
ISSN0278-0046
URIhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84902323911&origin=inward
URIhttp://hdl.handle.net/10576/36464
AbstractThe quasi-Z source (qZS) cascaded multilevel inverter (CMI) (qZS-CMI) presents attractive advantages in application to photovoltaic (PV) power system. Each PV panel connects to an H-bridge qZS inverter (qZSI) to form a power generation module. The distributed maximum power point tracking and all modules' dc-link peak voltage balance can be achieved. However, it is the same with the conventional CMI that the second-harmonic (2ω) voltage and current ripples exist in each qZSI module. It is crucial for a qZS-CMI to design the reasonable qZS network parameters to limit the ripples within a desired range. This paper proposes an analytic model to accurately calculate the 2ω voltage and current ripples of each qZSI module. A qZS impedance design method based on the built model is proposed to limit the 2ω ripples of dc-link voltage and inductor current. Simulated and experimental results through using the designed 1.5-kW prototype validate the proposed analytic model and the design method. Furthermore, this paper analyzes all of the operating states for a qZSI module and calculates the power loss. The measured efficiency from the prototype verifies the theoretical calculation, and the qZS-CMI-based grid-tie PV power system is tested in practical. © 1982-2012 IEEE.
Languageen
PublisherIEEE
SubjectCircuit modeling
multilevel inverter
photovoltaic (PV) power generation
quasi-Z source (qZS) inverter
TitleModeling, impedance design, and efficiency analysis of quasi-Z source module in cascaded multilevel photovoltaic power system
TypeArticle
Pagination6108-6117
Issue Number11
Volume Number61
ESSN1557-9948
dc.accessType Abstract Only


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