Optimal UFLS Settings: An Assessment of Frequency System Response Indicators

C. Adiyabazar; F. Gonzalez-Longatt; M. N. Acosta; J. L. Rueda; P. Palensky

doi:10.1109/ISGT-Europe47291.2020.9248760

Optimal UFLS Settings: An Assessment of Frequency System Response Indicators

C. Adiyabazar, F. Gonzalez-Longatt, M. N. Acosta, J. L. Rueda, P. Palensky

Intelligent Electrical Power Grids

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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Abstract

This paper investigates the positive changes in the system frequency response indicators caused by the implementation of a set of optimal settings of an under-frequency load shedding (UFLS) scheme. The optimal UFLS scheme is optimised by minimising the total amount of load shedding and considering the recovery process of the system frequency into its operational values after several losses of generation and satisfies the requirements of the UFLS standard (PRC-006-SERC-02). The idea of implementing the optimal UFLS scheme is to identify how changes the minimum frequency, minimum time, rate of change of frequency and steady-state frequency when the amount of load shedding change. The optimal UFLS scheme formulation starts with identifying the variables to control with the optimisation and its respective bounds. Then, the objective function is formulated in terms of the total load shedding, and finally, the restrictions and requirements of the systems are written as inequality constraints. The optimal UFLS is evaluated in the IEEE 39-bus system. The simulations results demonstrate the suitability of the optimal UFLS to improve the frequency response indicators.

Original language	English
Title of host publication	2020 IEEE PES Innovative Smart Grid Technologies Europe (ISGT-Europe)
Pages	1141-1145
Number of pages	5
DOIs	https://doi.org/10.1109/ISGT-Europe47291.2020.9248760
Publication status	Published - 2020
Event	10th IEEE PES Innovative Smart Grid Technologies Europe, ISGT-Europe 2020 - Virtual/online event due to COVID-19, Delft, Netherlands Duration: 26 Oct 2020 → 28 Oct 2020 Conference number: 10 https://ieee-isgt-europe.org/

Conference

Conference	10th IEEE PES Innovative Smart Grid Technologies Europe, ISGT-Europe 2020
Abbreviated title	ISGT-Europe 2020
Country/Territory	Netherlands
City	Delft
Period	26/10/20 → 28/10/20
Other	Virtual/online event due to COVID-19
Internet address	https://ieee-isgt-europe.org/

Bibliographical note

"Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public."

Keywords

Frequency control
Frequency response indicators
Optimisation
Under-frequency load shedding

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10.1109/ISGT-Europe47291.2020.9248760

09248760Final published version, 540 KB

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title = "Optimal UFLS Settings: An Assessment of Frequency System Response Indicators",

abstract = "This paper investigates the positive changes in the system frequency response indicators caused by the implementation of a set of optimal settings of an under-frequency load shedding (UFLS) scheme. The optimal UFLS scheme is optimised by minimising the total amount of load shedding and considering the recovery process of the system frequency into its operational values after several losses of generation and satisfies the requirements of the UFLS standard (PRC-006-SERC-02). The idea of implementing the optimal UFLS scheme is to identify how changes the minimum frequency, minimum time, rate of change of frequency and steady-state frequency when the amount of load shedding change. The optimal UFLS scheme formulation starts with identifying the variables to control with the optimisation and its respective bounds. Then, the objective function is formulated in terms of the total load shedding, and finally, the restrictions and requirements of the systems are written as inequality constraints. The optimal UFLS is evaluated in the IEEE 39-bus system. The simulations results demonstrate the suitability of the optimal UFLS to improve the frequency response indicators.",

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author = "C. Adiyabazar and F. Gonzalez-Longatt and Acosta, {M. N.} and Rueda, {J. L.} and P. Palensky",

note = "{"}Green Open Access added to TU Delft Institutional Repository {\textquoteleft}You share, we take care!{\textquoteright} – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.{"} ; 10th IEEE PES Innovative Smart Grid Technologies Europe, ISGT-Europe 2020, ISGT-Europe 2020 ; Conference date: 26-10-2020 Through 28-10-2020",

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isbn = "978-1-7281-7100-5",

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Adiyabazar, C, Gonzalez-Longatt, F, Acosta, MN, Rueda, JL & Palensky, P 2020, Optimal UFLS Settings: An Assessment of Frequency System Response Indicators. in 2020 IEEE PES Innovative Smart Grid Technologies Europe (ISGT-Europe). pp. 1141-1145, 10th IEEE PES Innovative Smart Grid Technologies Europe, ISGT-Europe 2020, Delft, Netherlands, 26/10/20. https://doi.org/10.1109/ISGT-Europe47291.2020.9248760

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AU - Gonzalez-Longatt, F.

AU - Acosta, M. N.

AU - Rueda, J. L.

AU - Palensky, P.

N1 - Conference code: 10

PY - 2020

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N2 - This paper investigates the positive changes in the system frequency response indicators caused by the implementation of a set of optimal settings of an under-frequency load shedding (UFLS) scheme. The optimal UFLS scheme is optimised by minimising the total amount of load shedding and considering the recovery process of the system frequency into its operational values after several losses of generation and satisfies the requirements of the UFLS standard (PRC-006-SERC-02). The idea of implementing the optimal UFLS scheme is to identify how changes the minimum frequency, minimum time, rate of change of frequency and steady-state frequency when the amount of load shedding change. The optimal UFLS scheme formulation starts with identifying the variables to control with the optimisation and its respective bounds. Then, the objective function is formulated in terms of the total load shedding, and finally, the restrictions and requirements of the systems are written as inequality constraints. The optimal UFLS is evaluated in the IEEE 39-bus system. The simulations results demonstrate the suitability of the optimal UFLS to improve the frequency response indicators.

AB - This paper investigates the positive changes in the system frequency response indicators caused by the implementation of a set of optimal settings of an under-frequency load shedding (UFLS) scheme. The optimal UFLS scheme is optimised by minimising the total amount of load shedding and considering the recovery process of the system frequency into its operational values after several losses of generation and satisfies the requirements of the UFLS standard (PRC-006-SERC-02). The idea of implementing the optimal UFLS scheme is to identify how changes the minimum frequency, minimum time, rate of change of frequency and steady-state frequency when the amount of load shedding change. The optimal UFLS scheme formulation starts with identifying the variables to control with the optimisation and its respective bounds. Then, the objective function is formulated in terms of the total load shedding, and finally, the restrictions and requirements of the systems are written as inequality constraints. The optimal UFLS is evaluated in the IEEE 39-bus system. The simulations results demonstrate the suitability of the optimal UFLS to improve the frequency response indicators.

KW - Frequency control

KW - Frequency response indicators

KW - Optimisation

KW - Under-frequency load shedding

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BT - 2020 IEEE PES Innovative Smart Grid Technologies Europe (ISGT-Europe)

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Y2 - 26 October 2020 through 28 October 2020

ER -

Optimal UFLS Settings: An Assessment of Frequency System Response Indicators

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