Controlled Islanding Based on the Coherency of Generators and Minimum Electrical Distance

Inter-area oscillations and cascading failures are the most serious threats to the security of the electric power system. Uncontrolled islanding will occur in the event of an unstable inter-area oscillation or a progressive cascading failure. The establishment of uncontrolled islands with a deficien...

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Autores principales:	M. R. Aghamohammadi, S. Fazel Mahdavizadeh, Z. Rafiee
Formato:	article
Lenguaje:	EN
Publicado:	IEEE 2021
Materias:	Intentional islanding generator coherency electrical distances DBSCAN algorithm Dijkstra algorithm non-linear programming Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/8d5da8895cfe463aaf06f4623fb88512
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spelling	oai:doaj.org-article:8d5da8895cfe463aaf06f4623fb885122021-11-18T00:00:48ZControlled Islanding Based on the Coherency of Generators and Minimum Electrical Distance2169-353610.1109/ACCESS.2021.3119529https://doaj.org/article/8d5da8895cfe463aaf06f4623fb885122021-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9568777/https://doaj.org/toc/2169-3536Inter-area oscillations and cascading failures are the most serious threats to the security of the electric power system. Uncontrolled islanding will occur in the event of an unstable inter-area oscillation or a progressive cascading failure. The establishment of uncontrolled islands with a deficiency in load-generation balance is the main reason for system blackout. Controlled islanding has been proposed as a preventive strategy for reducing the risk of blackout in this regard. A new algorithm for applying the controlled islanding strategy is proposed in this paper, based on load coherency and nearest electrical distances between coherent groups of generators. Coherent generators as the main core for controlled islands are identified in this method, which is based on the correlation coefficients between generators and the DBSCAN clustering algorithm. The sub-networks are then created by applying mixed-integer linear programming to each coherent group. Once this is accomplished, non-linear programming is used to construct the stable sub-networks associated with islands that meet the requirements of load-generation balance, voltage limitations, and transmission limits. The proposed scheme is implemented on the small-scale IEEE 39-bus system and a large-scale realistic power system which is the Iran power grid. The results demonstrate that the proposed method is capable of being implemented in a real power system.M. R. AghamohammadiS. Fazel MahdavizadehZ. RafieeIEEEarticleIntentional islandinggenerator coherencyelectrical distancesDBSCAN algorithmDijkstra algorithmnon-linear programmingElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENIEEE Access, Vol 9, Pp 146830-146840 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Intentional islanding generator coherency electrical distances DBSCAN algorithm Dijkstra algorithm non-linear programming Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	Intentional islanding generator coherency electrical distances DBSCAN algorithm Dijkstra algorithm non-linear programming Electrical engineering. Electronics. Nuclear engineering TK1-9971 M. R. Aghamohammadi S. Fazel Mahdavizadeh Z. Rafiee Controlled Islanding Based on the Coherency of Generators and Minimum Electrical Distance
description	Inter-area oscillations and cascading failures are the most serious threats to the security of the electric power system. Uncontrolled islanding will occur in the event of an unstable inter-area oscillation or a progressive cascading failure. The establishment of uncontrolled islands with a deficiency in load-generation balance is the main reason for system blackout. Controlled islanding has been proposed as a preventive strategy for reducing the risk of blackout in this regard. A new algorithm for applying the controlled islanding strategy is proposed in this paper, based on load coherency and nearest electrical distances between coherent groups of generators. Coherent generators as the main core for controlled islands are identified in this method, which is based on the correlation coefficients between generators and the DBSCAN clustering algorithm. The sub-networks are then created by applying mixed-integer linear programming to each coherent group. Once this is accomplished, non-linear programming is used to construct the stable sub-networks associated with islands that meet the requirements of load-generation balance, voltage limitations, and transmission limits. The proposed scheme is implemented on the small-scale IEEE 39-bus system and a large-scale realistic power system which is the Iran power grid. The results demonstrate that the proposed method is capable of being implemented in a real power system.
format	article
author	M. R. Aghamohammadi S. Fazel Mahdavizadeh Z. Rafiee
author_facet	M. R. Aghamohammadi S. Fazel Mahdavizadeh Z. Rafiee
author_sort	M. R. Aghamohammadi
title	Controlled Islanding Based on the Coherency of Generators and Minimum Electrical Distance
title_short	Controlled Islanding Based on the Coherency of Generators and Minimum Electrical Distance
title_full	Controlled Islanding Based on the Coherency of Generators and Minimum Electrical Distance
title_fullStr	Controlled Islanding Based on the Coherency of Generators and Minimum Electrical Distance
title_full_unstemmed	Controlled Islanding Based on the Coherency of Generators and Minimum Electrical Distance
title_sort	controlled islanding based on the coherency of generators and minimum electrical distance
publisher	IEEE
publishDate	2021
url	https://doaj.org/article/8d5da8895cfe463aaf06f4623fb88512
work_keys_str_mv	AT mraghamohammadi controlledislandingbasedonthecoherencyofgeneratorsandminimumelectricaldistance AT sfazelmahdavizadeh controlledislandingbasedonthecoherencyofgeneratorsandminimumelectricaldistance AT zrafiee controlledislandingbasedonthecoherencyofgeneratorsandminimumelectricaldistance
_version_	1718425237640445952

Controlled Islanding Based on the Coherency of Generators and Minimum Electrical Distance

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