Modeling and Stability Analysis of Back-to-Back Converters in Networked Microgrids

Mobin Naderi, Yousef Khayat, Qobad Shafiee, Hassan Bevrani , Rasool Heydari, Tomislav Dragicevic, Frede Blaabjerg

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Abstract

This paper provides a small-signal model and stability analysis of interconnected AC microgrids (MGs) connected through back-to-back converters (BTBCs). The proposed modeling method of the networked microgrids (NMGs) is derived and it is generalized for any number of NMGs through BTBCs. Different BTBC control parts are analyzed to study their impact on the NMG stability. The eigenvalue analysis and participation matrix are employed to identify dynamic modes of BTBC DC voltage controller. For two NMGs, main participating state variables and corresponding parameters in the dominant low-frequency modes (LFMs) are recognized, then acceptable ranges of the parameters are calculated using the sensitivity analysis (SA). The contribution of the control BTBC parameters including PLL and DC voltage controller parameters in the small-signal stability margin are shown. In addition, to show the BTBC control impact on the NMGs stability in the time domain, simulation results are provided for the two NMGs in SimPowerSystems/Matlab environment.
Original languageEnglish
Title of host publicationProceedings of IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society
Number of pages6
PublisherIEEE Press
Publication dateOct 2019
Pages3925-3930
ISBN (Print)978-1-7281-4879-3
ISBN (Electronic)978-1-7281-4878-6
DOIs
Publication statusPublished - Oct 2019
EventIECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society - Lisbon, Portugal
Duration: 14 Oct 201917 Oct 2019

Conference

ConferenceIECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society
CountryPortugal
CityLisbon
Period14/10/201917/10/2019

Fingerprint

Controllers
Electric potential
Phase locked loops
Sensitivity analysis

Keywords

  • Networked AC microgrids
  • Back-to-back converters
  • Small-signal modeling
  • Small-signal stability analysis
  • Sensitivity analysis

Cite this

Naderi, M., Khayat, Y., Shafiee, Q., Bevrani , H., Heydari, R., Dragicevic, T., & Blaabjerg, F. (2019). Modeling and Stability Analysis of Back-to-Back Converters in Networked Microgrids. In Proceedings of IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society (pp. 3925-3930). IEEE Press. https://doi.org/10.1109/IECON.2019.8927265
Naderi, Mobin ; Khayat, Yousef ; Shafiee, Qobad ; Bevrani , Hassan ; Heydari, Rasool ; Dragicevic, Tomislav ; Blaabjerg, Frede. / Modeling and Stability Analysis of Back-to-Back Converters in Networked Microgrids. Proceedings of IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society. IEEE Press, 2019. pp. 3925-3930
@inproceedings{6f71e91003d548b69410ff9e168657e7,
title = "Modeling and Stability Analysis of Back-to-Back Converters in Networked Microgrids",
abstract = "This paper provides a small-signal model and stability analysis of interconnected AC microgrids (MGs) connected through back-to-back converters (BTBCs). The proposed modeling method of the networked microgrids (NMGs) is derived and it is generalized for any number of NMGs through BTBCs. Different BTBC control parts are analyzed to study their impact on the NMG stability. The eigenvalue analysis and participation matrix are employed to identify dynamic modes of BTBC DC voltage controller. For two NMGs, main participating state variables and corresponding parameters in the dominant low-frequency modes (LFMs) are recognized, then acceptable ranges of the parameters are calculated using the sensitivity analysis (SA). The contribution of the control BTBC parameters including PLL and DC voltage controller parameters in the small-signal stability margin are shown. In addition, to show the BTBC control impact on the NMGs stability in the time domain, simulation results are provided for the two NMGs in SimPowerSystems/Matlab environment.",
keywords = "Networked AC microgrids, Back-to-back converters, Small-signal modeling, Small-signal stability analysis, Sensitivity analysis",
author = "Mobin Naderi and Yousef Khayat and Qobad Shafiee and Hassan Bevrani and Rasool Heydari and Tomislav Dragicevic and Frede Blaabjerg",
year = "2019",
month = "10",
doi = "10.1109/IECON.2019.8927265",
language = "English",
isbn = "978-1-7281-4879-3",
pages = "3925--3930",
booktitle = "Proceedings of IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society",
publisher = "IEEE Press",
note = "IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society, IECON 2019 ; Conference date: 14-10-2019 Through 17-10-2019",

}

Naderi, M, Khayat, Y, Shafiee, Q, Bevrani , H, Heydari, R, Dragicevic, T & Blaabjerg, F 2019, Modeling and Stability Analysis of Back-to-Back Converters in Networked Microgrids. in Proceedings of IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society. IEEE Press, pp. 3925-3930, IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society, Lisbon, Portugal, 14/10/2019. https://doi.org/10.1109/IECON.2019.8927265

Modeling and Stability Analysis of Back-to-Back Converters in Networked Microgrids. / Naderi, Mobin; Khayat, Yousef; Shafiee, Qobad; Bevrani , Hassan ; Heydari, Rasool; Dragicevic, Tomislav; Blaabjerg, Frede.

Proceedings of IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society. IEEE Press, 2019. p. 3925-3930.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

TY - GEN

T1 - Modeling and Stability Analysis of Back-to-Back Converters in Networked Microgrids

AU - Naderi, Mobin

AU - Khayat, Yousef

AU - Shafiee, Qobad

AU - Bevrani , Hassan

AU - Heydari, Rasool

AU - Dragicevic, Tomislav

AU - Blaabjerg, Frede

PY - 2019/10

Y1 - 2019/10

N2 - This paper provides a small-signal model and stability analysis of interconnected AC microgrids (MGs) connected through back-to-back converters (BTBCs). The proposed modeling method of the networked microgrids (NMGs) is derived and it is generalized for any number of NMGs through BTBCs. Different BTBC control parts are analyzed to study their impact on the NMG stability. The eigenvalue analysis and participation matrix are employed to identify dynamic modes of BTBC DC voltage controller. For two NMGs, main participating state variables and corresponding parameters in the dominant low-frequency modes (LFMs) are recognized, then acceptable ranges of the parameters are calculated using the sensitivity analysis (SA). The contribution of the control BTBC parameters including PLL and DC voltage controller parameters in the small-signal stability margin are shown. In addition, to show the BTBC control impact on the NMGs stability in the time domain, simulation results are provided for the two NMGs in SimPowerSystems/Matlab environment.

AB - This paper provides a small-signal model and stability analysis of interconnected AC microgrids (MGs) connected through back-to-back converters (BTBCs). The proposed modeling method of the networked microgrids (NMGs) is derived and it is generalized for any number of NMGs through BTBCs. Different BTBC control parts are analyzed to study their impact on the NMG stability. The eigenvalue analysis and participation matrix are employed to identify dynamic modes of BTBC DC voltage controller. For two NMGs, main participating state variables and corresponding parameters in the dominant low-frequency modes (LFMs) are recognized, then acceptable ranges of the parameters are calculated using the sensitivity analysis (SA). The contribution of the control BTBC parameters including PLL and DC voltage controller parameters in the small-signal stability margin are shown. In addition, to show the BTBC control impact on the NMGs stability in the time domain, simulation results are provided for the two NMGs in SimPowerSystems/Matlab environment.

KW - Networked AC microgrids

KW - Back-to-back converters

KW - Small-signal modeling

KW - Small-signal stability analysis

KW - Sensitivity analysis

U2 - 10.1109/IECON.2019.8927265

DO - 10.1109/IECON.2019.8927265

M3 - Article in proceeding

SN - 978-1-7281-4879-3

SP - 3925

EP - 3930

BT - Proceedings of IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society

PB - IEEE Press

T2 - IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society

Y2 - 14 October 2019 through 17 October 2019

ER -

Naderi M, Khayat Y, Shafiee Q, Bevrani H, Heydari R, Dragicevic T et al. Modeling and Stability Analysis of Back-to-Back Converters in Networked Microgrids. In Proceedings of IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society. IEEE Press. 2019. p. 3925-3930 https://doi.org/10.1109/IECON.2019.8927265