An effective control method for quasi-Z-source cascade multilevel inverter-based grid-tie single-phase photovoltaic power system

Yushan Liu; Baoming Ge; Haitham Abu-Rub; Fang Z. Peng

doi:10.1109/TII.2013.2280083

An effective control method for quasi-Z-source cascade multilevel inverter-based grid-tie single-phase photovoltaic power system

Yushan Liu, Baoming Ge, Haitham Abu-Rub, Fang Z. Peng

Research output: Contribution to journal › Article › peer-review

188 Citations (Scopus)

Abstract

An effective control method, including system-level control and pulsewidth modulation for quasi-Z-source cascade multilevel inverter (qZS-CMI) based grid-tie photovoltaic (PV) power system is proposed. The system-level control achieves the grid-tie current injection, independent maximum power point tracking (MPPT) for separate PV panels, and dc-link voltage balance for all quasi-Z-source H-bridge inverter (qZS-HBI) modules. The complete design process is disclosed. A multilevel space vector modulation (SVM) for the single-phase qZS-CMI is proposed to fulfill the synthetization of the step-like voltage waveforms. Simulation and experiment based on a seven-level prototype are carried out to validate the proposed methods.

Original language	English
Article number	6587760
Pages (from-to)	399-407
Number of pages	9
Journal	IEEE Transactions on Industrial Informatics
Volume	10
Issue number	1
DOIs	https://doi.org/10.1109/TII.2013.2280083
Publication status	Published - Feb 2014
Externally published	Yes

Keywords

Cascade multilevel inverter (CMI)
photovoltaic (PV) power system
quasi-Z-source inverter
space vector modulation (SVM)

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10.1109/TII.2013.2280083

Cite this

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title = "An effective control method for quasi-Z-source cascade multilevel inverter-based grid-tie single-phase photovoltaic power system",

abstract = "An effective control method, including system-level control and pulsewidth modulation for quasi-Z-source cascade multilevel inverter (qZS-CMI) based grid-tie photovoltaic (PV) power system is proposed. The system-level control achieves the grid-tie current injection, independent maximum power point tracking (MPPT) for separate PV panels, and dc-link voltage balance for all quasi-Z-source H-bridge inverter (qZS-HBI) modules. The complete design process is disclosed. A multilevel space vector modulation (SVM) for the single-phase qZS-CMI is proposed to fulfill the synthetization of the step-like voltage waveforms. Simulation and experiment based on a seven-level prototype are carried out to validate the proposed methods.",

keywords = "Cascade multilevel inverter (CMI), photovoltaic (PV) power system, quasi-Z-source inverter, space vector modulation (SVM)",

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year = "2014",

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AU - Ge, Baoming

AU - Abu-Rub, Haitham

AU - Peng, Fang Z.

PY - 2014/2

Y1 - 2014/2

N2 - An effective control method, including system-level control and pulsewidth modulation for quasi-Z-source cascade multilevel inverter (qZS-CMI) based grid-tie photovoltaic (PV) power system is proposed. The system-level control achieves the grid-tie current injection, independent maximum power point tracking (MPPT) for separate PV panels, and dc-link voltage balance for all quasi-Z-source H-bridge inverter (qZS-HBI) modules. The complete design process is disclosed. A multilevel space vector modulation (SVM) for the single-phase qZS-CMI is proposed to fulfill the synthetization of the step-like voltage waveforms. Simulation and experiment based on a seven-level prototype are carried out to validate the proposed methods.

AB - An effective control method, including system-level control and pulsewidth modulation for quasi-Z-source cascade multilevel inverter (qZS-CMI) based grid-tie photovoltaic (PV) power system is proposed. The system-level control achieves the grid-tie current injection, independent maximum power point tracking (MPPT) for separate PV panels, and dc-link voltage balance for all quasi-Z-source H-bridge inverter (qZS-HBI) modules. The complete design process is disclosed. A multilevel space vector modulation (SVM) for the single-phase qZS-CMI is proposed to fulfill the synthetization of the step-like voltage waveforms. Simulation and experiment based on a seven-level prototype are carried out to validate the proposed methods.

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KW - photovoltaic (PV) power system

KW - quasi-Z-source inverter

KW - space vector modulation (SVM)

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An effective control method for quasi-Z-source cascade multilevel inverter-based grid-tie single-phase photovoltaic power system

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Keywords

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