A new grid-connected PV system based on cascaded H-bridge quasi-Z source inverter

Dongsen Sun; Baoming Ge; Fang Zheng Peng; Abu Rub Haitham; Daqiang Bi; Yushan Liu

doi:10.1109/ISIE.2012.6237218

A new grid-connected PV system based on cascaded H-bridge quasi-Z source inverter

Dongsen Sun^*
, Baoming Ge
, Fang Zheng Peng
, Abu Rub Haitham
, Daqiang Bi
, Yushan Liu

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

114 Scopus citations

Abstract

A new scheme for grid-connected photovoltaic (PV) interface by combination of a quasi-Z source inverter (qZSI) into cascaded H-bridge (CHB) is proposed in this paper. The proposed scheme enables PV string voltage boost to a higher level, and solves the imbalance problem of DC-link voltage in traditional CHB inverters. A multilevel voltage waveform of inverter output is generated by an improved phase shifted sinusoidal pulse width modulation (PS-SPWM) algorithm, which introduces shoot-through states into the conventional zero states to control qZS-CHB module. The effective control schemes are proposed to regulate the maximum power point tracking (MPPT) of each string, and control the DC-link voltage of each H-bridge, respectively. Grid injected power is controlled corresponding to the proportionality factors of each PV string output power. A 1.5 kW system is built in MATLAB/SIMULINK, and the simulation results verify the proposed novel multilevel PV interface inverter and its control principles.

Original language	English
Title of host publication	Proceedings - 2012 IEEE International Symposium on Industrial Electronics, ISIE 2012
Pages	951-956
Number of pages	6
DOIs	https://doi.org/10.1109/ISIE.2012.6237218
State	Published - 2012
Externally published	Yes
Event	21st IEEE International Symposium on Industrial Electronics, ISIE 2012 - Hangzhou, China Duration: 28 May 2012 → 31 May 2012

Publication series

Name	IEEE International Symposium on Industrial Electronics

Conference

Conference	21st IEEE International Symposium on Industrial Electronics, ISIE 2012
Country/Territory	China
City	Hangzhou
Period	28/05/12 → 31/05/12

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Access to Document

10.1109/ISIE.2012.6237218

Cite this

Sun, D., Ge, B., Peng, F. Z., Haitham, A. R., Bi, D., & Liu, Y. (2012). A new grid-connected PV system based on cascaded H-bridge quasi-Z source inverter. In Proceedings - 2012 IEEE International Symposium on Industrial Electronics, ISIE 2012 (pp. 951-956). Article 6237218 (IEEE International Symposium on Industrial Electronics). https://doi.org/10.1109/ISIE.2012.6237218

@inproceedings{a6f229ce364040608cf76690138046bd,

title = "A new grid-connected PV system based on cascaded H-bridge quasi-Z source inverter",

abstract = "A new scheme for grid-connected photovoltaic (PV) interface by combination of a quasi-Z source inverter (qZSI) into cascaded H-bridge (CHB) is proposed in this paper. The proposed scheme enables PV string voltage boost to a higher level, and solves the imbalance problem of DC-link voltage in traditional CHB inverters. A multilevel voltage waveform of inverter output is generated by an improved phase shifted sinusoidal pulse width modulation (PS-SPWM) algorithm, which introduces shoot-through states into the conventional zero states to control qZS-CHB module. The effective control schemes are proposed to regulate the maximum power point tracking (MPPT) of each string, and control the DC-link voltage of each H-bridge, respectively. Grid injected power is controlled corresponding to the proportionality factors of each PV string output power. A 1.5 kW system is built in MATLAB/SIMULINK, and the simulation results verify the proposed novel multilevel PV interface inverter and its control principles.",

author = "Dongsen Sun and Baoming Ge and Peng, \{Fang Zheng\} and Haitham, \{Abu Rub\} and Daqiang Bi and Yushan Liu",

year = "2012",

doi = "10.1109/ISIE.2012.6237218",

language = "英语",

isbn = "9781467301589",

series = "IEEE International Symposium on Industrial Electronics",

pages = "951--956",

booktitle = "Proceedings - 2012 IEEE International Symposium on Industrial Electronics, ISIE 2012",

note = "21st IEEE International Symposium on Industrial Electronics, ISIE 2012 ; Conference date: 28-05-2012 Through 31-05-2012",

}

Sun, D, Ge, B, Peng, FZ, Haitham, AR, Bi, D & Liu, Y 2012, A new grid-connected PV system based on cascaded H-bridge quasi-Z source inverter. in Proceedings - 2012 IEEE International Symposium on Industrial Electronics, ISIE 2012., 6237218, IEEE International Symposium on Industrial Electronics, pp. 951-956, 21st IEEE International Symposium on Industrial Electronics, ISIE 2012, Hangzhou, China, 28/05/12. https://doi.org/10.1109/ISIE.2012.6237218

A new grid-connected PV system based on cascaded H-bridge quasi-Z source inverter. / Sun, Dongsen; Ge, Baoming; Peng, Fang Zheng et al.
Proceedings - 2012 IEEE International Symposium on Industrial Electronics, ISIE 2012. 2012. p. 951-956 6237218 (IEEE International Symposium on Industrial Electronics).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - A new grid-connected PV system based on cascaded H-bridge quasi-Z source inverter

AU - Sun, Dongsen

AU - Ge, Baoming

AU - Peng, Fang Zheng

AU - Haitham, Abu Rub

AU - Bi, Daqiang

AU - Liu, Yushan

PY - 2012

Y1 - 2012

N2 - A new scheme for grid-connected photovoltaic (PV) interface by combination of a quasi-Z source inverter (qZSI) into cascaded H-bridge (CHB) is proposed in this paper. The proposed scheme enables PV string voltage boost to a higher level, and solves the imbalance problem of DC-link voltage in traditional CHB inverters. A multilevel voltage waveform of inverter output is generated by an improved phase shifted sinusoidal pulse width modulation (PS-SPWM) algorithm, which introduces shoot-through states into the conventional zero states to control qZS-CHB module. The effective control schemes are proposed to regulate the maximum power point tracking (MPPT) of each string, and control the DC-link voltage of each H-bridge, respectively. Grid injected power is controlled corresponding to the proportionality factors of each PV string output power. A 1.5 kW system is built in MATLAB/SIMULINK, and the simulation results verify the proposed novel multilevel PV interface inverter and its control principles.

AB - A new scheme for grid-connected photovoltaic (PV) interface by combination of a quasi-Z source inverter (qZSI) into cascaded H-bridge (CHB) is proposed in this paper. The proposed scheme enables PV string voltage boost to a higher level, and solves the imbalance problem of DC-link voltage in traditional CHB inverters. A multilevel voltage waveform of inverter output is generated by an improved phase shifted sinusoidal pulse width modulation (PS-SPWM) algorithm, which introduces shoot-through states into the conventional zero states to control qZS-CHB module. The effective control schemes are proposed to regulate the maximum power point tracking (MPPT) of each string, and control the DC-link voltage of each H-bridge, respectively. Grid injected power is controlled corresponding to the proportionality factors of each PV string output power. A 1.5 kW system is built in MATLAB/SIMULINK, and the simulation results verify the proposed novel multilevel PV interface inverter and its control principles.

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SN - 9781467301589

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ER -

A new grid-connected PV system based on cascaded H-bridge quasi-Z source inverter

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