Modular Multilevel Converters Based Variable Speed Wind Turbines for Grid Faults

Fujin Deng; Dong Liu; Yanbo Wang; Qingsong Wang; Zhe Chen

doi:10.1109/IECON.2016.7793594

Modular Multilevel Converters Based Variable Speed Wind Turbines for Grid Faults

Fujin Deng, Dong Liu, Yanbo Wang, Qingsong Wang, Zhe Chen

AAU Energy

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

8 Citations (Scopus)

Abstract

The modular multilevel converter (MMC) becomes attractive in the medium- and high-power application with high modularity. In this paper, the MMC is proposed to be applied in the variable speed wind turbine (VSWT) based on the full-scale back-to-back (BTB) power converter, where the generator-side converter is the three-level neutral-point-clamped (NPC) converter and the grid-side converter is the three-phase MMC. A control strategy is also presented for the MMC based VSWT for the second-order harmonic current elimination. The proposed MMC based VSWT and control not only mitigate the voltage ripple in the dc-link of the power converter to improve system performance, but also ensure the grid-side current balancing to increase the generated power of the wind turbine under the unbalanced grid fault, in comparison with the conventional VSWT based on BTB three-level NPC converters. The simulation studies of the proposed MMC based VSWT and control are conducted with a detailed PSCAD/EMTDC model, and the results show their effectiveness.

Original language	English
Title of host publication	Proceeding of The 42nd Annual Conference of IEEE Industrial Electronics Society (IECON), 2016
Number of pages	6
Publisher	IEEE Press
Publication date	Oct 2016
Pages	2420 - 2425
ISBN (Electronic)	978-1-5090-3474-1
DOIs	https://doi.org/10.1109/IECON.2016.7793594
Publication status	Published - Oct 2016
Event	42nd Conference of the Industrial Electronics Society, IECON 2016: 42nd Annual Conference of the IEEE Industrial Electronics Society - Palazzo dei Congressi, Florence, Italy Duration: 24 Oct 2016 → 27 Oct 2016 http://www.iecon2016.org/?jjj=1471434927195 http://www.iecon2016.org/

Conference

Conference	42nd Conference of the Industrial Electronics Society, IECON 2016
Location	Palazzo dei Congressi
Country/Territory	Italy
City	Florence
Period	24/10/2016 → 27/10/2016
Sponsor	IEEE Industrial Electronics Society (IES), Institute of Electrical and Electronics Engineers (IEEE)
Internet address	http://www.iecon2016.org/?jjj=1471434927195 http://www.iecon2016.org/

Keywords

Grid fault
Modular multilevel converters
Wind turbine

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10.1109/IECON.2016.7793594

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@inproceedings{eb011aebe7f24c908c896b037f580a89,

title = "Modular Multilevel Converters Based Variable Speed Wind Turbines for Grid Faults",

abstract = "The modular multilevel converter (MMC) becomes attractive in the medium- and high-power application with high modularity. In this paper, the MMC is proposed to be applied in the variable speed wind turbine (VSWT) based on the full-scale back-to-back (BTB) power converter, where the generator-side converter is the three-level neutral-point-clamped (NPC) converter and the grid-side converter is the three-phase MMC. A control strategy is also presented for the MMC based VSWT for the second-order harmonic current elimination. The proposed MMC based VSWT and control not only mitigate the voltage ripple in the dc-link of the power converter to improve system performance, but also ensure the grid-side current balancing to increase the generated power of the wind turbine under the unbalanced grid fault, in comparison with the conventional VSWT based on BTB three-level NPC converters. The simulation studies of the proposed MMC based VSWT and control are conducted with a detailed PSCAD/EMTDC model, and the results show their effectiveness.",

keywords = "Grid fault, Modular multilevel converters, Wind turbine",

author = "Fujin Deng and Dong Liu and Yanbo Wang and Qingsong Wang and Zhe Chen",

year = "2016",

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doi = "10.1109/IECON.2016.7793594",

language = "English",

pages = "2420 -- 2425",

booktitle = "Proceeding of The 42nd Annual Conference of IEEE Industrial Electronics Society (IECON), 2016",

publisher = "IEEE Press",

note = "42nd Conference of the Industrial Electronics Society, IECON 2016 : 42nd Annual Conference of the IEEE Industrial Electronics Society, IECON 2016 ; Conference date: 24-10-2016 Through 27-10-2016",

url = "http://www.iecon2016.org/?jjj=1471434927195, http://www.iecon2016.org/",

}

Deng, F, Liu, D, Wang, Y, Wang, Q & Chen, Z 2016, Modular Multilevel Converters Based Variable Speed Wind Turbines for Grid Faults. in Proceeding of The 42nd Annual Conference of IEEE Industrial Electronics Society (IECON), 2016. IEEE Press, pp. 2420 - 2425, 42nd Conference of the Industrial Electronics Society, IECON 2016, Florence, Italy, 24/10/2016. https://doi.org/10.1109/IECON.2016.7793594

Modular Multilevel Converters Based Variable Speed Wind Turbines for Grid Faults. / Deng, Fujin; Liu, Dong; Wang, Yanbo et al.
Proceeding of The 42nd Annual Conference of IEEE Industrial Electronics Society (IECON), 2016. IEEE Press, 2016. p. 2420 - 2425.

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

TY - GEN

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AU - Liu, Dong

AU - Wang, Yanbo

AU - Wang, Qingsong

AU - Chen, Zhe

PY - 2016/10

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N2 - The modular multilevel converter (MMC) becomes attractive in the medium- and high-power application with high modularity. In this paper, the MMC is proposed to be applied in the variable speed wind turbine (VSWT) based on the full-scale back-to-back (BTB) power converter, where the generator-side converter is the three-level neutral-point-clamped (NPC) converter and the grid-side converter is the three-phase MMC. A control strategy is also presented for the MMC based VSWT for the second-order harmonic current elimination. The proposed MMC based VSWT and control not only mitigate the voltage ripple in the dc-link of the power converter to improve system performance, but also ensure the grid-side current balancing to increase the generated power of the wind turbine under the unbalanced grid fault, in comparison with the conventional VSWT based on BTB three-level NPC converters. The simulation studies of the proposed MMC based VSWT and control are conducted with a detailed PSCAD/EMTDC model, and the results show their effectiveness.

AB - The modular multilevel converter (MMC) becomes attractive in the medium- and high-power application with high modularity. In this paper, the MMC is proposed to be applied in the variable speed wind turbine (VSWT) based on the full-scale back-to-back (BTB) power converter, where the generator-side converter is the three-level neutral-point-clamped (NPC) converter and the grid-side converter is the three-phase MMC. A control strategy is also presented for the MMC based VSWT for the second-order harmonic current elimination. The proposed MMC based VSWT and control not only mitigate the voltage ripple in the dc-link of the power converter to improve system performance, but also ensure the grid-side current balancing to increase the generated power of the wind turbine under the unbalanced grid fault, in comparison with the conventional VSWT based on BTB three-level NPC converters. The simulation studies of the proposed MMC based VSWT and control are conducted with a detailed PSCAD/EMTDC model, and the results show their effectiveness.

KW - Grid fault

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M3 - Article in proceeding

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ER -

Modular Multilevel Converters Based Variable Speed Wind Turbines for Grid Faults

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