Synchronisation Control Action for Very Low-Frequency Oscillations

Connor Duggan; Paul Brogan; Xueqin Liu; Robert Best; D John Morrow

doi:10.1109/ISSC52156.2021.9467843

Synchronisation Control Action for Very Low-Frequency Oscillations

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

3 Citations (Scopus)

379 Downloads (Pure)

Abstract

Very low-frequency oscillations have been occurring on power grids with a high concentration of hydro generation and islanded grids with a lack of AC interconnection. These oscillations can persist in an ambient form or be triggered by a transient event before growing to the extent that threatens system stability. When a severe event occurs, it is important to identify the cause and have practical control actions to restore power system stability. Firstly, this paper demonstrates that synchronising a generator with a positive damping torque component can restore positively damped conditions. Simulations on a modified 2-Area system are evaluated with DIgSILENT PowerFactory. A transport delay is added to speed feedback of a GAST model governor to simulate a spontaneous negatively damped very-low-frequency oscillation with the appearance of being self-excited after a generation load imbalance. Secondly, a 300 mHz 0.08 Hz very-low-frequency oscillation on the Irish electrical grid is analysed using the governor based dissipation energy flow method. Dissipation energy flow is used to illustrate how the synchronisation of 2 generators successfully returned Ireland's power system to positively damped conditions.

Original language	English
Title of host publication	2021 32nd Irish Signals and Systems Conference (ISSC 2021): Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781665434294
DOIs	https://doi.org/10.1109/ISSC52156.2021.9467843
Publication status	Published - 01 Jul 2021
Event	32nd Irish Signals and Systems Conference, ISSC 2021 - Athlone, Ireland Duration: 10 Jun 2021 → 11 Jun 2021

Publication series

Name	Irish Signals and Systems Conference: Proceedings
Publisher	IEEE
ISSN (Print)	2688-1446
ISSN (Electronic)	2688-1454

Conference

Conference	32nd Irish Signals and Systems Conference, ISSC 2021
Country/Territory	Ireland
City	Athlone
Period	10/06/2021 → 11/06/2021

Bibliographical note

Funding Information:
ACKNOWLEDGEMENTS The authors would like to thank SONI/EirGrid for providing PMU data and generator metadata. The authors would also like to thank DIgSILENT PowerFactory for granting a thesis license to continue research off-campus during COVID-19. The authors would also like to acknowledge the financial support from SPIRE 2 (Storage Platform for the Integration of Renewable Energy) project. The SPIRE 2 project is supported by the European Union’s INTERREG VA Programme (Grant No. INT-VA/049), managed by the Special EU Programmes Body (SEUPB). The views and

Publisher Copyright:
© 2021 IEEE.

Keywords

Control Decisions
DEF
power system stability
Very Low-Frequency Oscillations
wide-area monitoring and control

ASJC Scopus subject areas

Signal Processing

Access to Document

10.1109/ISSC52156.2021.9467843Licence: Unspecified

Synchronisation Control Action for Very Low-Frequency Oscillations
© 2021 The Authors. This work is made available online in accordance with the publisher’s policies. Please refer to any applicable terms of use of the publisher.
Accepted author manuscript, 1.16 MBLicence: Unspecified

Localization and control of very low-frequency oscillations in Ireland's power system
Duggan, C. (Author), Liu, X. (Supervisor), Best, R. (Supervisor) & Morrow, D. (Supervisor), Jul 2026
Student thesis: Doctoral Thesis › Thesis with Publications

Cite this

Duggan, C., Brogan, P., Liu, X., Best, R., & Morrow, D. J. (2021). Synchronisation Control Action for Very Low-Frequency Oscillations. In 2021 32nd Irish Signals and Systems Conference (ISSC 2021): Proceedings Article 9467843 (Irish Signals and Systems Conference: Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISSC52156.2021.9467843

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title = "Synchronisation Control Action for Very Low-Frequency Oscillations",

abstract = "Very low-frequency oscillations have been occurring on power grids with a high concentration of hydro generation and islanded grids with a lack of AC interconnection. These oscillations can persist in an ambient form or be triggered by a transient event before growing to the extent that threatens system stability. When a severe event occurs, it is important to identify the cause and have practical control actions to restore power system stability. Firstly, this paper demonstrates that synchronising a generator with a positive damping torque component can restore positively damped conditions. Simulations on a modified 2-Area system are evaluated with DIgSILENT PowerFactory. A transport delay is added to speed feedback of a GAST model governor to simulate a spontaneous negatively damped very-low-frequency oscillation with the appearance of being self-excited after a generation load imbalance. Secondly, a 300 mHz 0.08 Hz very-low-frequency oscillation on the Irish electrical grid is analysed using the governor based dissipation energy flow method. Dissipation energy flow is used to illustrate how the synchronisation of 2 generators successfully returned Ireland's power system to positively damped conditions. ",

keywords = "Control Decisions, DEF, power system stability, Very Low-Frequency Oscillations, wide-area monitoring and control",

author = "Connor Duggan and Paul Brogan and Xueqin Liu and Robert Best and Morrow, \{D John\}",

note = "Funding Information: ACKNOWLEDGEMENTS The authors would like to thank SONI/EirGrid for providing PMU data and generator metadata. The authors would also like to thank DIgSILENT PowerFactory for granting a thesis license to continue research off-campus during COVID-19. The authors would also like to acknowledge the financial support from SPIRE 2 (Storage Platform for the Integration of Renewable Energy) project. The SPIRE 2 project is supported by the European Union{\textquoteright}s INTERREG VA Programme (Grant No. INT-VA/049), managed by the Special EU Programmes Body (SEUPB). The views and Publisher Copyright: {\textcopyright} 2021 IEEE.; 32nd Irish Signals and Systems Conference, ISSC 2021 ; Conference date: 10-06-2021 Through 11-06-2021",

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Duggan, C, Brogan, P, Liu, X , Best, R & Morrow, DJ 2021, Synchronisation Control Action for Very Low-Frequency Oscillations. in 2021 32nd Irish Signals and Systems Conference (ISSC 2021): Proceedings., 9467843, Irish Signals and Systems Conference: Proceedings, Institute of Electrical and Electronics Engineers Inc., 32nd Irish Signals and Systems Conference, ISSC 2021, Athlone, Ireland, 10/06/2021. https://doi.org/10.1109/ISSC52156.2021.9467843

Synchronisation Control Action for Very Low-Frequency Oscillations. / Duggan, Connor; Brogan, Paul; Liu, Xueqin et al.
2021 32nd Irish Signals and Systems Conference (ISSC 2021): Proceedings. Institute of Electrical and Electronics Engineers Inc., 2021. 9467843 (Irish Signals and Systems Conference: Proceedings).

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

TY - GEN

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AU - Duggan, Connor

AU - Brogan, Paul

AU - Liu, Xueqin

AU - Best, Robert

AU - Morrow, D John

N1 - Funding Information: ACKNOWLEDGEMENTS The authors would like to thank SONI/EirGrid for providing PMU data and generator metadata. The authors would also like to thank DIgSILENT PowerFactory for granting a thesis license to continue research off-campus during COVID-19. The authors would also like to acknowledge the financial support from SPIRE 2 (Storage Platform for the Integration of Renewable Energy) project. The SPIRE 2 project is supported by the European Union’s INTERREG VA Programme (Grant No. INT-VA/049), managed by the Special EU Programmes Body (SEUPB). The views and Publisher Copyright: © 2021 IEEE.

PY - 2021/7/1

Y1 - 2021/7/1

N2 - Very low-frequency oscillations have been occurring on power grids with a high concentration of hydro generation and islanded grids with a lack of AC interconnection. These oscillations can persist in an ambient form or be triggered by a transient event before growing to the extent that threatens system stability. When a severe event occurs, it is important to identify the cause and have practical control actions to restore power system stability. Firstly, this paper demonstrates that synchronising a generator with a positive damping torque component can restore positively damped conditions. Simulations on a modified 2-Area system are evaluated with DIgSILENT PowerFactory. A transport delay is added to speed feedback of a GAST model governor to simulate a spontaneous negatively damped very-low-frequency oscillation with the appearance of being self-excited after a generation load imbalance. Secondly, a 300 mHz 0.08 Hz very-low-frequency oscillation on the Irish electrical grid is analysed using the governor based dissipation energy flow method. Dissipation energy flow is used to illustrate how the synchronisation of 2 generators successfully returned Ireland's power system to positively damped conditions.

AB - Very low-frequency oscillations have been occurring on power grids with a high concentration of hydro generation and islanded grids with a lack of AC interconnection. These oscillations can persist in an ambient form or be triggered by a transient event before growing to the extent that threatens system stability. When a severe event occurs, it is important to identify the cause and have practical control actions to restore power system stability. Firstly, this paper demonstrates that synchronising a generator with a positive damping torque component can restore positively damped conditions. Simulations on a modified 2-Area system are evaluated with DIgSILENT PowerFactory. A transport delay is added to speed feedback of a GAST model governor to simulate a spontaneous negatively damped very-low-frequency oscillation with the appearance of being self-excited after a generation load imbalance. Secondly, a 300 mHz 0.08 Hz very-low-frequency oscillation on the Irish electrical grid is analysed using the governor based dissipation energy flow method. Dissipation energy flow is used to illustrate how the synchronisation of 2 generators successfully returned Ireland's power system to positively damped conditions.

KW - Control Decisions

KW - DEF

KW - power system stability

KW - Very Low-Frequency Oscillations

KW - wide-area monitoring and control

U2 - 10.1109/ISSC52156.2021.9467843

DO - 10.1109/ISSC52156.2021.9467843

M3 - Conference contribution

AN - SCOPUS:85114427811

T3 - Irish Signals and Systems Conference: Proceedings

BT - 2021 32nd Irish Signals and Systems Conference (ISSC 2021): Proceedings

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 32nd Irish Signals and Systems Conference, ISSC 2021

Y2 - 10 June 2021 through 11 June 2021

ER -

Synchronisation Control Action for Very Low-Frequency Oscillations

Abstract

Publication series

Conference

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

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Student theses

Localization and control of very low-frequency oscillations in Ireland's power system

Cite this