Comparison of Droop Control and Virtual Oscillator Control Realized by Andronov-Hopf Dynamics

Minghui Lu; Victor Purba; Sairaj Dhople; Brian Johnson

doi:10.1109/IECON43393.2020.9254645

Comparison of Droop Control and Virtual Oscillator Control Realized by Andronov-Hopf Dynamics

Minghui Lu, Victor Purba, Sairaj Dhople, Brian Johnson

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

18 Scopus citations

Abstract

Virtual oscillator control (VOC) is a time-domain strategy for regulating the operation of grid-forming (GFM) inverters. The premise of this method is to leverage the dynamics of nonlinear oscillator circuits to realize controllers; the time-domain nature of the resulting implementation is starkly different from classical droop control methods. This paper considers VOC realized with the dynamics of the Andronov-Hopf oscillator, a second-order nonlinear dynamical system that enables GFM inverters to be dispatched and generate low-harmonic outputs while not compromising dynamic performance. Leveraging an equilibrium analysis of the involved dynamics and small-signal models, we put forth a side-by-side comparison of dynamic performance and small-signal stability with classical droop control. The results demonstrate superior dynamic performance of VOC, and broadly, the paper furthers efforts focused on modeling and analysis of this general class of GFM controllers.

Original language	English (US)
Title of host publication	Proceedings - IECON 2020
Subtitle of host publication	46th Annual Conference of the IEEE Industrial Electronics Society
Publisher	IEEE Computer Society
Pages	4051-4056
Number of pages	6
ISBN (Electronic)	9781728154145
DOIs	https://doi.org/10.1109/IECON43393.2020.9254645
State	Published - Oct 18 2020
Externally published	Yes
Event	46th Annual Conference of the IEEE Industrial Electronics Society, IECON 2020 - Virtual, Singapore, Singapore Duration: Oct 19 2020 → Oct 21 2020

Publication series

Name	IECON Proceedings (Industrial Electronics Conference)
Volume	2020-October

Conference

Conference	46th Annual Conference of the IEEE Industrial Electronics Society, IECON 2020
Country/Territory	Singapore
City	Virtual, Singapore
Period	10/19/20 → 10/21/20

Bibliographical note

Funding Information:
This material is based upon work supported by the U.S. Department of Energy’s Office of Energy Efficiency and Renewable Energy (EERE) under Solar Energy Technologies Office (SETO) Agreement Number EE0009025, the National Science Foundation through grant 1509277, and Washington Research Foundation.

Publisher Copyright:
© 2020 IEEE.

Access

10.1109/IECON43393.2020.9254645

OpenUrl availability

Full text

Cite this

Lu, M., Purba, V., Dhople, S., & Johnson, B. (2020). Comparison of Droop Control and Virtual Oscillator Control Realized by Andronov-Hopf Dynamics. In Proceedings - IECON 2020: 46th Annual Conference of the IEEE Industrial Electronics Society (pp. 4051-4056). Article 9254645 (IECON Proceedings (Industrial Electronics Conference); Vol. 2020-October). IEEE Computer Society. https://doi.org/10.1109/IECON43393.2020.9254645

Comparison of Droop Control and Virtual Oscillator Control Realized by Andronov-Hopf Dynamics. / Lu, Minghui; Purba, Victor; Dhople, Sairaj et al.
Proceedings - IECON 2020: 46th Annual Conference of the IEEE Industrial Electronics Society. IEEE Computer Society, 2020. p. 4051-4056 9254645 (IECON Proceedings (Industrial Electronics Conference); Vol. 2020-October).

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

Lu, M, Purba, V, Dhople, S & Johnson, B 2020, Comparison of Droop Control and Virtual Oscillator Control Realized by Andronov-Hopf Dynamics. in Proceedings - IECON 2020: 46th Annual Conference of the IEEE Industrial Electronics Society., 9254645, IECON Proceedings (Industrial Electronics Conference), vol. 2020-October, IEEE Computer Society, pp. 4051-4056, 46th Annual Conference of the IEEE Industrial Electronics Society, IECON 2020, Virtual, Singapore, Singapore, 10/19/20. https://doi.org/10.1109/IECON43393.2020.9254645

Lu M, Purba V, Dhople S, Johnson B. Comparison of Droop Control and Virtual Oscillator Control Realized by Andronov-Hopf Dynamics. In Proceedings - IECON 2020: 46th Annual Conference of the IEEE Industrial Electronics Society. IEEE Computer Society. 2020. p. 4051-4056. 9254645. (IECON Proceedings (Industrial Electronics Conference)). doi: 10.1109/IECON43393.2020.9254645

@inproceedings{e1f7ac88f4cd438d8bfae37eaf0f5fa4,

title = "Comparison of Droop Control and Virtual Oscillator Control Realized by Andronov-Hopf Dynamics",

abstract = "Virtual oscillator control (VOC) is a time-domain strategy for regulating the operation of grid-forming (GFM) inverters. The premise of this method is to leverage the dynamics of nonlinear oscillator circuits to realize controllers; the time-domain nature of the resulting implementation is starkly different from classical droop control methods. This paper considers VOC realized with the dynamics of the Andronov-Hopf oscillator, a second-order nonlinear dynamical system that enables GFM inverters to be dispatched and generate low-harmonic outputs while not compromising dynamic performance. Leveraging an equilibrium analysis of the involved dynamics and small-signal models, we put forth a side-by-side comparison of dynamic performance and small-signal stability with classical droop control. The results demonstrate superior dynamic performance of VOC, and broadly, the paper furthers efforts focused on modeling and analysis of this general class of GFM controllers.",

author = "Minghui Lu and Victor Purba and Sairaj Dhople and Brian Johnson",

note = "Funding Information: This material is based upon work supported by the U.S. Department of Energy{\textquoteright}s Office of Energy Efficiency and Renewable Energy (EERE) under Solar Energy Technologies Office (SETO) Agreement Number EE0009025, the National Science Foundation through grant 1509277, and Washington Research Foundation. Publisher Copyright: {\textcopyright} 2020 IEEE.; 46th Annual Conference of the IEEE Industrial Electronics Society, IECON 2020 ; Conference date: 19-10-2020 Through 21-10-2020",

year = "2020",

month = oct,

day = "18",

doi = "10.1109/IECON43393.2020.9254645",

language = "English (US)",

series = "IECON Proceedings (Industrial Electronics Conference)",

publisher = "IEEE Computer Society",

pages = "4051--4056",

booktitle = "Proceedings - IECON 2020",

}

TY - GEN

T1 - Comparison of Droop Control and Virtual Oscillator Control Realized by Andronov-Hopf Dynamics

AU - Lu, Minghui

AU - Purba, Victor

AU - Dhople, Sairaj

AU - Johnson, Brian

N1 - Funding Information: This material is based upon work supported by the U.S. Department of Energy’s Office of Energy Efficiency and Renewable Energy (EERE) under Solar Energy Technologies Office (SETO) Agreement Number EE0009025, the National Science Foundation through grant 1509277, and Washington Research Foundation. Publisher Copyright: © 2020 IEEE.

PY - 2020/10/18

Y1 - 2020/10/18

N2 - Virtual oscillator control (VOC) is a time-domain strategy for regulating the operation of grid-forming (GFM) inverters. The premise of this method is to leverage the dynamics of nonlinear oscillator circuits to realize controllers; the time-domain nature of the resulting implementation is starkly different from classical droop control methods. This paper considers VOC realized with the dynamics of the Andronov-Hopf oscillator, a second-order nonlinear dynamical system that enables GFM inverters to be dispatched and generate low-harmonic outputs while not compromising dynamic performance. Leveraging an equilibrium analysis of the involved dynamics and small-signal models, we put forth a side-by-side comparison of dynamic performance and small-signal stability with classical droop control. The results demonstrate superior dynamic performance of VOC, and broadly, the paper furthers efforts focused on modeling and analysis of this general class of GFM controllers.

AB - Virtual oscillator control (VOC) is a time-domain strategy for regulating the operation of grid-forming (GFM) inverters. The premise of this method is to leverage the dynamics of nonlinear oscillator circuits to realize controllers; the time-domain nature of the resulting implementation is starkly different from classical droop control methods. This paper considers VOC realized with the dynamics of the Andronov-Hopf oscillator, a second-order nonlinear dynamical system that enables GFM inverters to be dispatched and generate low-harmonic outputs while not compromising dynamic performance. Leveraging an equilibrium analysis of the involved dynamics and small-signal models, we put forth a side-by-side comparison of dynamic performance and small-signal stability with classical droop control. The results demonstrate superior dynamic performance of VOC, and broadly, the paper furthers efforts focused on modeling and analysis of this general class of GFM controllers.

UR - http://www.scopus.com/inward/record.url?scp=85097786678&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85097786678&partnerID=8YFLogxK

U2 - 10.1109/IECON43393.2020.9254645

DO - 10.1109/IECON43393.2020.9254645

M3 - Conference contribution

AN - SCOPUS:85097786678

T3 - IECON Proceedings (Industrial Electronics Conference)

SP - 4051

EP - 4056

BT - Proceedings - IECON 2020

PB - IEEE Computer Society

T2 - 46th Annual Conference of the IEEE Industrial Electronics Society, IECON 2020

Y2 - 19 October 2020 through 21 October 2020

ER -

Comparison of Droop Control and Virtual Oscillator Control Realized by Andronov-Hopf Dynamics

Abstract

Publication series

Conference

Bibliographical note

Access

OpenUrl availability

Other files and links

Fingerprint

Cite this