Estimation-based Consensus Approach for Decentralized Frequency Control of AC Microgrids

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

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

Abstract

In this paper, a decentralized frequency control of ac microgrid (MG) governed by $P-\omega$ droop characteristics is presented. This approach is realized by applying an active power estimation to eliminate the required communication infrastructure in the secondary control layer. The proposed decentralized frequency control is achieved by employing the unique feature of the frequency as a global variable in autonomous ac MGs. By utilizing a consensus protocol, the proposed method restores the MG frequency to the nominal value while maintaining accurate power sharing of the droop mechanism. The consensus protocol is an estimation-based approach and does not require communication infrastructure. Experimental results verified accurate power-sharing and the frequency restoration to the nominal value without any communication requirement.
Original languageEnglish
Title of host publicationProceedings of 2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe)
Number of pages6
Place of PublicationItaly
PublisherIEEE Press
Publication dateSep 2019
ISBN (Print)978-1-7281-2361-5
ISBN (Electronic) 978-9-0758-1531-3
DOIs
Publication statusPublished - Sep 2019
Event2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe) - Genova, Italy
Duration: 3 Sep 20195 Sep 2019

Conference

Conference2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe)
CountryItaly
CityGenova
Period03/09/201905/09/2019

Fingerprint

Communication
Restoration

Keywords

  • Microgrids
  • Secondary frequency control
  • Decentralized control
  • Communication-free secondary control
  • Consensus protocol

Cite this

Khayat, Y., Heydari, R., Naderi, M., Dragicevic, T., Shafiee, Q., Fathi, M., ... Blaabjerg, F. (2019). Estimation-based Consensus Approach for Decentralized Frequency Control of AC Microgrids. In Proceedings of 2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe) Italy: IEEE Press. https://doi.org/10.23919/EPE.2019.8914758
Khayat, Yousef ; Heydari, Rasool ; Naderi, Mobin ; Dragicevic, Tomislav ; Shafiee, Qobad ; Fathi, Mohammad ; Bevrani , Hassan ; Blaabjerg, Frede. / Estimation-based Consensus Approach for Decentralized Frequency Control of AC Microgrids. Proceedings of 2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe). Italy : IEEE Press, 2019.
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title = "Estimation-based Consensus Approach for Decentralized Frequency Control of AC Microgrids",
abstract = "In this paper, a decentralized frequency control of ac microgrid (MG) governed by $P-\omega$ droop characteristics is presented. This approach is realized by applying an active power estimation to eliminate the required communication infrastructure in the secondary control layer. The proposed decentralized frequency control is achieved by employing the unique feature of the frequency as a global variable in autonomous ac MGs. By utilizing a consensus protocol, the proposed method restores the MG frequency to the nominal value while maintaining accurate power sharing of the droop mechanism. The consensus protocol is an estimation-based approach and does not require communication infrastructure. Experimental results verified accurate power-sharing and the frequency restoration to the nominal value without any communication requirement.",
keywords = "Microgrids, Secondary frequency control, Decentralized control, Communication-free secondary control, Consensus protocol",
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Khayat, Y, Heydari, R, Naderi, M, Dragicevic, T, Shafiee, Q, Fathi, M, Bevrani , H & Blaabjerg, F 2019, Estimation-based Consensus Approach for Decentralized Frequency Control of AC Microgrids. in Proceedings of 2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe). IEEE Press, Italy, 2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe), Genova, Italy, 03/09/2019. https://doi.org/10.23919/EPE.2019.8914758

Estimation-based Consensus Approach for Decentralized Frequency Control of AC Microgrids. / Khayat, Yousef; Heydari, Rasool; Naderi, Mobin; Dragicevic, Tomislav; Shafiee, Qobad; Fathi, Mohammad; Bevrani , Hassan ; Blaabjerg, Frede.

Proceedings of 2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe). Italy : IEEE Press, 2019.

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

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AU - Khayat, Yousef

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AU - Blaabjerg, Frede

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N2 - In this paper, a decentralized frequency control of ac microgrid (MG) governed by $P-\omega$ droop characteristics is presented. This approach is realized by applying an active power estimation to eliminate the required communication infrastructure in the secondary control layer. The proposed decentralized frequency control is achieved by employing the unique feature of the frequency as a global variable in autonomous ac MGs. By utilizing a consensus protocol, the proposed method restores the MG frequency to the nominal value while maintaining accurate power sharing of the droop mechanism. The consensus protocol is an estimation-based approach and does not require communication infrastructure. Experimental results verified accurate power-sharing and the frequency restoration to the nominal value without any communication requirement.

AB - In this paper, a decentralized frequency control of ac microgrid (MG) governed by $P-\omega$ droop characteristics is presented. This approach is realized by applying an active power estimation to eliminate the required communication infrastructure in the secondary control layer. The proposed decentralized frequency control is achieved by employing the unique feature of the frequency as a global variable in autonomous ac MGs. By utilizing a consensus protocol, the proposed method restores the MG frequency to the nominal value while maintaining accurate power sharing of the droop mechanism. The consensus protocol is an estimation-based approach and does not require communication infrastructure. Experimental results verified accurate power-sharing and the frequency restoration to the nominal value without any communication requirement.

KW - Microgrids

KW - Secondary frequency control

KW - Decentralized control

KW - Communication-free secondary control

KW - Consensus protocol

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DO - 10.23919/EPE.2019.8914758

M3 - Article in proceeding

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BT - Proceedings of 2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe)

PB - IEEE Press

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Khayat Y, Heydari R, Naderi M, Dragicevic T, Shafiee Q, Fathi M et al. Estimation-based Consensus Approach for Decentralized Frequency Control of AC Microgrids. In Proceedings of 2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe). Italy: IEEE Press. 2019 https://doi.org/10.23919/EPE.2019.8914758