Modeling and Control of Single-Phase Quasi-Z-Source Inverters

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Resumé

Compared with a conventional two-stage inverter, the quasi-Z-source inverter (qZSI) has several advantages for renewable applications because of its buck-boost capability and continuous input current. This paper addresses modeling and control issues resulted from the impedance-source network resonance. Considering shoot-through states, null states, and active states, the modulation ratio is included in the modeling process. Unlike prior-art modeling methods to separate the DC and AC parts, the proposed modeling method considers the impedance source network as an open-loop impedance at the input of the AC side. The resonant characteristic of the converter is investigated and the AC controller is designed in detail. Simulations are presented to validate the modeling and control methods.
OriginalsprogEngelsk
TitelProceedings of 44th Annual Conference of the IEEE Industrial Electronics Society : IECON 2018
Antal sider6
ForlagIEEE Press
Publikationsdatookt. 2018
Sider3737-3742
ISBN (Trykt)978-1-5090-6685-8
ISBN (Elektronisk)978-1-5090-6684-1
DOI
StatusUdgivet - okt. 2018
Begivenhed44th Annual Conference of the IEEE Industrial Electronics Society - Omni Shoreham Hotel, Washington, USA
Varighed: 21 okt. 201823 okt. 2018
http://www.iecon2018.org/

Konference

Konference44th Annual Conference of the IEEE Industrial Electronics Society
LokationOmni Shoreham Hotel
LandUSA
ByWashington
Periode21/10/201823/10/2018
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    Liu, W., Yuan, J., Yang, Y., & Kerekes, T. (2018). Modeling and Control of Single-Phase Quasi-Z-Source Inverters. I Proceedings of 44th Annual Conference of the IEEE Industrial Electronics Society: IECON 2018 (s. 3737-3742). IEEE Press. https://doi.org/10.1109/IECON.2018.8592814
    Liu, Wenjie ; Yuan, Jing ; Yang, Yongheng ; Kerekes, Tamas. / Modeling and Control of Single-Phase Quasi-Z-Source Inverters. Proceedings of 44th Annual Conference of the IEEE Industrial Electronics Society: IECON 2018. IEEE Press, 2018. s. 3737-3742
    @inproceedings{4f28dbb14ee9488f96ee513c7b802410,
    title = "Modeling and Control of Single-Phase Quasi-Z-Source Inverters",
    abstract = "Compared with a conventional two-stage inverter, the quasi-Z-source inverter (qZSI) has several advantages for renewable applications because of its buck-boost capability and continuous input current. This paper addresses modeling and control issues resulted from the impedance-source network resonance. Considering shoot-through states, null states, and active states, the modulation ratio is included in the modeling process. Unlike prior-art modeling methods to separate the DC and AC parts, the proposed modeling method considers the impedance source network as an open-loop impedance at the input of the AC side. The resonant characteristic of the converter is investigated and the AC controller is designed in detail. Simulations are presented to validate the modeling and control methods.",
    keywords = "Quasi-Z-source, small signal modeling, equivalent open-loop impedance, modeling",
    author = "Wenjie Liu and Jing Yuan and Yongheng Yang and Tamas Kerekes",
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    doi = "10.1109/IECON.2018.8592814",
    language = "English",
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    Liu, W, Yuan, J, Yang, Y & Kerekes, T 2018, Modeling and Control of Single-Phase Quasi-Z-Source Inverters. i Proceedings of 44th Annual Conference of the IEEE Industrial Electronics Society: IECON 2018. IEEE Press, s. 3737-3742, Washington, USA, 21/10/2018. https://doi.org/10.1109/IECON.2018.8592814

    Modeling and Control of Single-Phase Quasi-Z-Source Inverters. / Liu, Wenjie; Yuan, Jing; Yang, Yongheng; Kerekes, Tamas.

    Proceedings of 44th Annual Conference of the IEEE Industrial Electronics Society: IECON 2018. IEEE Press, 2018. s. 3737-3742.

    Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

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    N2 - Compared with a conventional two-stage inverter, the quasi-Z-source inverter (qZSI) has several advantages for renewable applications because of its buck-boost capability and continuous input current. This paper addresses modeling and control issues resulted from the impedance-source network resonance. Considering shoot-through states, null states, and active states, the modulation ratio is included in the modeling process. Unlike prior-art modeling methods to separate the DC and AC parts, the proposed modeling method considers the impedance source network as an open-loop impedance at the input of the AC side. The resonant characteristic of the converter is investigated and the AC controller is designed in detail. Simulations are presented to validate the modeling and control methods.

    AB - Compared with a conventional two-stage inverter, the quasi-Z-source inverter (qZSI) has several advantages for renewable applications because of its buck-boost capability and continuous input current. This paper addresses modeling and control issues resulted from the impedance-source network resonance. Considering shoot-through states, null states, and active states, the modulation ratio is included in the modeling process. Unlike prior-art modeling methods to separate the DC and AC parts, the proposed modeling method considers the impedance source network as an open-loop impedance at the input of the AC side. The resonant characteristic of the converter is investigated and the AC controller is designed in detail. Simulations are presented to validate the modeling and control methods.

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    KW - small signal modeling

    KW - equivalent open-loop impedance

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    Liu W, Yuan J, Yang Y, Kerekes T. Modeling and Control of Single-Phase Quasi-Z-Source Inverters. I Proceedings of 44th Annual Conference of the IEEE Industrial Electronics Society: IECON 2018. IEEE Press. 2018. s. 3737-3742 https://doi.org/10.1109/IECON.2018.8592814