A unified active damping control for single-phase differential buck inverter with LCL-filter

W. Yao; X. Wang; X. Zhang; Y. Tang; P.C. Loh; F. Blaabjerg

doi:10.1109/PEDG.2015.7223087

A unified active damping control for single-phase differential buck inverter with LCL-filter

W. Yao, X. Wang, X. Zhang, Y. Tang, P.C. Loh, F. Blaabjerg

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Publikation: Bidrag til bog/antologi/rapport/konference proceeding › Konferenceartikel i proceeding › Forskning › peer review

24 Citationer (Scopus)

Abstract

The single-phase differential mode buck inverter is recently introduced with a differential mode for power transfer and a common mode for actively decoupling the second-order power oscillation. However, it is limited to islanded applications with an LC filter. This paper addresses the stability and control of a grid-connected differential mode buck inverter with an LCL filter. A generalized small-signal model of the inverter is built first with the averaged switching model. It is shown that the LCL filter resonance merely occurs in the differential mode, while an LC filter resonance exists in the common mode, provided that the filter parameters of the two bridges are kept the same. A unified active damping control approach is then proposed for stabilizing the inverter and improving the transient performance under a wide range of grid impedance. Lastly, experimental tests are carried out and the results confirm the effectiveness of the theoretical analysis and proposed control approach.

Originalsprog	Engelsk
Titel	Proceedings of the IEEE 6th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2015
Antal sider	8
Forlag	IEEE Press
Publikationsdato	jun. 2015
Sider	1-8
ISBN (Trykt)	978-1-4799-8585-2
ISBN (Elektronisk)	978-1-4799-8586-9
DOI	https://doi.org/10.1109/PEDG.2015.7223087
Status	Udgivet - jun. 2015
Begivenhed	IEEE 6th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2015 - Pullman Aachen Quellenhof hotel, Aachen, Tyskland Varighed: 22 sep. 2015 → 25 sep. 2015

Konference

Konference	IEEE 6th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2015
Lokation	Pullman Aachen Quellenhof hotel
Land/Område	Tyskland
By	Aachen
Periode	22/09/2015 → 25/09/2015

Navn	IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG)
ISSN	2329-5767

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10.1109/PEDG.2015.7223087

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http://www.scopus.com/inward/record.url?eid=2-s2.0-84954126188&partnerID=MN8TOARS

HARMONY: HARMONY - Harmonic identification, mitigation and control in power electronics based power systems
Blaabjerg, F., Bak, C. L., Wang, X., Beres, R. N., Kwon, J., Gui, Y., Yoon, C. & Ebrahimzadeh, E.
European Research Counsil
01/02/2013 → 28/02/2018
Projekter: Projekt › Forskning

Citationsformater

Yao, W. ; Wang, X. ; Zhang, X. et al. / A unified active damping control for single-phase differential buck inverter with LCL-filter. Proceedings of the IEEE 6th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2015. IEEE Press, 2015. s. 1-8 (IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG) ).

@inproceedings{56a39ee31658466d8717c4c05fe128ff,

title = "A unified active damping control for single-phase differential buck inverter with LCL-filter",

abstract = "The single-phase differential mode buck inverter is recently introduced with a differential mode for power transfer and a common mode for actively decoupling the second-order power oscillation. However, it is limited to islanded applications with an LC filter. This paper addresses the stability and control of a grid-connected differential mode buck inverter with an LCL filter. A generalized small-signal model of the inverter is built first with the averaged switching model. It is shown that the LCL filter resonance merely occurs in the differential mode, while an LC filter resonance exists in the common mode, provided that the filter parameters of the two bridges are kept the same. A unified active damping control approach is then proposed for stabilizing the inverter and improving the transient performance under a wide range of grid impedance. Lastly, experimental tests are carried out and the results confirm the effectiveness of the theoretical analysis and proposed control approach.",

keywords = "Active power decoupling, Active damping, Differential mode buck converter, Small signal model",

author = "W. Yao and X. Wang and X. Zhang and Y. Tang and P.C. Loh and F. Blaabjerg",

year = "2015",

month = jun,

doi = "10.1109/PEDG.2015.7223087",

language = "English",

isbn = "978-1-4799-8585-2",

series = "IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG) ",

pages = "1--8",

booktitle = "Proceedings of the IEEE 6th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2015",

publisher = "IEEE Press",

note = "IEEE 6th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2015, PEDG2015 ; Conference date: 22-09-2015 Through 25-09-2015",

}

Yao, W, Wang, X, Zhang, X, Tang, Y, Loh, PC & Blaabjerg, F 2015, A unified active damping control for single-phase differential buck inverter with LCL-filter. i Proceedings of the IEEE 6th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2015. IEEE Press, IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG) , s. 1-8, IEEE 6th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2015, Aachen, Tyskland, 22/09/2015. https://doi.org/10.1109/PEDG.2015.7223087

A unified active damping control for single-phase differential buck inverter with LCL-filter. / Yao, W.; Wang, X.; Zhang, X. et al.
Proceedings of the IEEE 6th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2015. IEEE Press, 2015. s. 1-8 (IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG) ).

Publikation: Bidrag til bog/antologi/rapport/konference proceeding › Konferenceartikel i proceeding › Forskning › peer review

TY - GEN

T1 - A unified active damping control for single-phase differential buck inverter with LCL-filter

AU - Yao, W.

AU - Wang, X.

AU - Zhang, X.

AU - Tang, Y.

AU - Loh, P.C.

AU - Blaabjerg, F.

PY - 2015/6

Y1 - 2015/6

N2 - The single-phase differential mode buck inverter is recently introduced with a differential mode for power transfer and a common mode for actively decoupling the second-order power oscillation. However, it is limited to islanded applications with an LC filter. This paper addresses the stability and control of a grid-connected differential mode buck inverter with an LCL filter. A generalized small-signal model of the inverter is built first with the averaged switching model. It is shown that the LCL filter resonance merely occurs in the differential mode, while an LC filter resonance exists in the common mode, provided that the filter parameters of the two bridges are kept the same. A unified active damping control approach is then proposed for stabilizing the inverter and improving the transient performance under a wide range of grid impedance. Lastly, experimental tests are carried out and the results confirm the effectiveness of the theoretical analysis and proposed control approach.

AB - The single-phase differential mode buck inverter is recently introduced with a differential mode for power transfer and a common mode for actively decoupling the second-order power oscillation. However, it is limited to islanded applications with an LC filter. This paper addresses the stability and control of a grid-connected differential mode buck inverter with an LCL filter. A generalized small-signal model of the inverter is built first with the averaged switching model. It is shown that the LCL filter resonance merely occurs in the differential mode, while an LC filter resonance exists in the common mode, provided that the filter parameters of the two bridges are kept the same. A unified active damping control approach is then proposed for stabilizing the inverter and improving the transient performance under a wide range of grid impedance. Lastly, experimental tests are carried out and the results confirm the effectiveness of the theoretical analysis and proposed control approach.

KW - Active power decoupling

KW - Active damping

KW - Differential mode buck converter

KW - Small signal model

UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-84954126188&partnerID=MN8TOARS

U2 - 10.1109/PEDG.2015.7223087

DO - 10.1109/PEDG.2015.7223087

M3 - Article in proceeding

SN - 978-1-4799-8585-2

T3 - IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG)

SP - 1

EP - 8

BT - Proceedings of the IEEE 6th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2015

PB - IEEE Press

T2 - IEEE 6th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2015

Y2 - 22 September 2015 through 25 September 2015

ER -

Yao W, Wang X, Zhang X, Tang Y, Loh PC, Blaabjerg F. A unified active damping control for single-phase differential buck inverter with LCL-filter. I Proceedings of the IEEE 6th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2015. IEEE Press. 2015. s. 1-8. (IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG) ). doi: 10.1109/PEDG.2015.7223087

A unified active damping control for single-phase differential buck inverter with LCL-filter

Abstract

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HARMONY: HARMONY - Harmonic identification, mitigation and control in power electronics based power systems

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