System strength and weak grids: Fundamentals, challenges, and mitigation strategies

Mehdi Ghazavi Dozein; Pierluigi Mancarella; Tapan Kumar Saha; Ruifeng Yan

doi:10.1109/AUPEC.2018.8757997

System strength and weak grids: Fundamentals, challenges, and mitigation strategies

Mehdi Ghazavi Dozein, Pierluigi Mancarella, Tapan Kumar Saha, Ruifeng Yan

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

59 Citations (Scopus)

Abstract

Converter-based renewable energy sources (RES) and battery energy storage (BES) devices that are asynchronously connected to the system are becoming more and more widespread. A number of relevant stability issues, usually in areas with little synchronous generation, are being experienced, particularly in terms of voltage stability. In this context, the scope of this work is to review the key aspects of the so-called 'system strength' that is associated with 'weak grids' where such instabilities arise, its definitions, assessment metrics, and adverse operational impacts that may emerge. The paper is then discussing two main mitigation strategies to improve short-term voltage stability in weak power systems. The first is to provide voltage stability services by converter-based technologies to support the system voltage in weak areas. The second proposition is to employ FACTS devices to increase system strength. Finally, limitations and challenges regarding the operation of converter-based technologies and FACTS devices in weak grids are presented and followed by key recommendations.

Original language	English
Title of host publication	2018 Australasian Universities Power Engineering Conference (AUPEC 2018)
Editors	Apel Mahmud
Place of Publication	Piscataway NJ USA
Publisher	IEEE, Institute of Electrical and Electronics Engineers
Pages	448-454
Number of pages	7
ISBN (Electronic)	9781538684740, 9781538684733
ISBN (Print)	9781538684757
DOIs	https://doi.org/10.1109/AUPEC.2018.8757997
Publication status	Published - 2018
Externally published	Yes
Event	Australasian Universities Power Engineering Conference 2018 - Auckland, New Zealand Duration: 27 Nov 2018 → 30 Nov 2018 https://ieeexplore.ieee.org/xpl/conhome/8753113/proceeding (Proceedings) https://web.archive.org/web/20181218031700/http://aupec2018.org.nz/ (Website)

Conference

Conference	Australasian Universities Power Engineering Conference 2018
Abbreviated title	AUPEC 2018
Country/Territory	New Zealand
City	Auckland
Period	27/11/18 → 30/11/18
Internet address	https://ieeexplore.ieee.org/xpl/conhome/8753113/proceeding (Proceedings) https://web.archive.org/web/20181218031700/http://aupec2018.org.nz/ (Website)

Keywords

FACTS devices
Non-synchronous technologies (NST)
System strength
Voltage stability services
Weak-grid area

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1109/AUPEC.2018.8757997

Cite this

Dozein, M. G., Mancarella, P., Saha, T. K., & Yan, R. (2018). System strength and weak grids: Fundamentals, challenges, and mitigation strategies. In A. Mahmud (Ed.), 2018 Australasian Universities Power Engineering Conference (AUPEC 2018) (pp. 448-454). Article 8757997 IEEE, Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/AUPEC.2018.8757997

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title = "System strength and weak grids: Fundamentals, challenges, and mitigation strategies",

abstract = "Converter-based renewable energy sources (RES) and battery energy storage (BES) devices that are asynchronously connected to the system are becoming more and more widespread. A number of relevant stability issues, usually in areas with little synchronous generation, are being experienced, particularly in terms of voltage stability. In this context, the scope of this work is to review the key aspects of the so-called 'system strength' that is associated with 'weak grids' where such instabilities arise, its definitions, assessment metrics, and adverse operational impacts that may emerge. The paper is then discussing two main mitigation strategies to improve short-term voltage stability in weak power systems. The first is to provide voltage stability services by converter-based technologies to support the system voltage in weak areas. The second proposition is to employ FACTS devices to increase system strength. Finally, limitations and challenges regarding the operation of converter-based technologies and FACTS devices in weak grids are presented and followed by key recommendations.",

keywords = "FACTS devices, Non-synchronous technologies (NST), System strength, Voltage stability services, Weak-grid area",

author = "Dozein, \{Mehdi Ghazavi\} and Pierluigi Mancarella and Saha, \{Tapan Kumar\} and Ruifeng Yan",

note = "Publisher Copyright: {\textcopyright} 2018 IEEE.; Australasian Universities Power Engineering Conference 2018, AUPEC 2018 ; Conference date: 27-11-2018 Through 30-11-2018",

year = "2018",

doi = "10.1109/AUPEC.2018.8757997",

language = "English",

isbn = "9781538684757",

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booktitle = "2018 Australasian Universities Power Engineering Conference (AUPEC 2018)",

publisher = "IEEE, Institute of Electrical and Electronics Engineers",

address = "United States of America",

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Dozein, MG, Mancarella, P, Saha, TK & Yan, R 2018, System strength and weak grids: Fundamentals, challenges, and mitigation strategies. in A Mahmud (ed.), 2018 Australasian Universities Power Engineering Conference (AUPEC 2018)., 8757997, IEEE, Institute of Electrical and Electronics Engineers, Piscataway NJ USA, pp. 448-454, Australasian Universities Power Engineering Conference 2018, Auckland, New Zealand, 27/11/18. https://doi.org/10.1109/AUPEC.2018.8757997

System strength and weak grids: Fundamentals, challenges, and mitigation strategies. / Dozein, Mehdi Ghazavi; Mancarella, Pierluigi; Saha, Tapan Kumar et al.
2018 Australasian Universities Power Engineering Conference (AUPEC 2018). ed. / Apel Mahmud. Piscataway NJ USA: IEEE, Institute of Electrical and Electronics Engineers, 2018. p. 448-454 8757997.

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

TY - GEN

T1 - System strength and weak grids

T2 - Australasian Universities Power Engineering Conference 2018

AU - Dozein, Mehdi Ghazavi

AU - Mancarella, Pierluigi

AU - Saha, Tapan Kumar

AU - Yan, Ruifeng

PY - 2018

Y1 - 2018

N2 - Converter-based renewable energy sources (RES) and battery energy storage (BES) devices that are asynchronously connected to the system are becoming more and more widespread. A number of relevant stability issues, usually in areas with little synchronous generation, are being experienced, particularly in terms of voltage stability. In this context, the scope of this work is to review the key aspects of the so-called 'system strength' that is associated with 'weak grids' where such instabilities arise, its definitions, assessment metrics, and adverse operational impacts that may emerge. The paper is then discussing two main mitigation strategies to improve short-term voltage stability in weak power systems. The first is to provide voltage stability services by converter-based technologies to support the system voltage in weak areas. The second proposition is to employ FACTS devices to increase system strength. Finally, limitations and challenges regarding the operation of converter-based technologies and FACTS devices in weak grids are presented and followed by key recommendations.

AB - Converter-based renewable energy sources (RES) and battery energy storage (BES) devices that are asynchronously connected to the system are becoming more and more widespread. A number of relevant stability issues, usually in areas with little synchronous generation, are being experienced, particularly in terms of voltage stability. In this context, the scope of this work is to review the key aspects of the so-called 'system strength' that is associated with 'weak grids' where such instabilities arise, its definitions, assessment metrics, and adverse operational impacts that may emerge. The paper is then discussing two main mitigation strategies to improve short-term voltage stability in weak power systems. The first is to provide voltage stability services by converter-based technologies to support the system voltage in weak areas. The second proposition is to employ FACTS devices to increase system strength. Finally, limitations and challenges regarding the operation of converter-based technologies and FACTS devices in weak grids are presented and followed by key recommendations.

KW - FACTS devices

KW - Non-synchronous technologies (NST)

KW - System strength

KW - Voltage stability services

KW - Weak-grid area

UR - https://www.scopus.com/pages/publications/85069438908

U2 - 10.1109/AUPEC.2018.8757997

DO - 10.1109/AUPEC.2018.8757997

M3 - Conference Paper

AN - SCOPUS:85069438908

SN - 9781538684757

SP - 448

EP - 454

BT - 2018 Australasian Universities Power Engineering Conference (AUPEC 2018)

A2 - Mahmud, Apel

PB - IEEE, Institute of Electrical and Electronics Engineers

CY - Piscataway NJ USA

Y2 - 27 November 2018 through 30 November 2018

ER -

System strength and weak grids: Fundamentals, challenges, and mitigation strategies

Abstract

Conference

Keywords

UN SDGs

Access to Document

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Cite this