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Evaluation of Delays-based Stability of LFC Systems in the Presence of Electric ‎Vehicles Aggregator

Name: Evaluation of Delays-based Stability of LFC Systems in the Presence of Electric ‎Vehicles Aggregator
Keywords: time-varying delay, TK1001-1841, Production of electric energy or power. Powerplants. Central stations, lmi, Electrical engineering. Electronics. Nuclear engineering, load frequency control, lyapunov-krasovskii theory, electric vehicles aggregator, TK1-9971

descriptionPublicationkeyboard_double_arrow_right Article , Other literature type 17 Jul 2021 English Publisher:University of Mohaghegh ArdabiliJournal:Journal of Operation and Automation in Power Engineering (issn: 2322-4576,

Authors: Javad Salehi; Farshad Babaei; Amin Safari;

doi: 10.22098/joape.2022.9042.1626

Evaluation of Delays-based Stability of LFC Systems in the Presence of Electric ‎Vehicles Aggregator

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Abstract

In the integrated electrical systems, frequency control service considering the electric vehicle (EV) aggregators could lead to time-varying delay in load frequency control (LFC) schemes. These delays influence the LFC system efficiency, and in some situations, the lack of a clear choice of a control strategy considering the time-varying delays causes power system instability. Thus, this paper illustrates different time-varying delays based on the stability of an LFC system in the EV aggregators presence. The LFC's delay-dependent stability study is executed for finding the stability region and, stability criteria is suggested using the linear matrix inequality (LMI) method and Lyapunov-Krasovskii theory. Also, Wirtinger-based improved inequality and bounding lemma are applied to compute the greatest allowable delay in the LFC system, including the EV aggregators.

Related Organizations

Azarbaijan Shahid Madani University
Iran (Islamic Republic of)
Azarbaijan Shahid Madani University
Iran (Islamic Republic of)

Keywords

time-varying delay, TK1001-1841, Production of electric energy or power. Powerplants. Central stations, lmi, Electrical engineering. Electronics. Nuclear engineering, load frequency control, lyapunov-krasovskii theory, electric vehicles aggregator, TK1-9971

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