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Evaluation of Delays-based Stability of LFC Systems in the Presence of Electric Vehicles Aggregator | ||
Journal of Operation and Automation in Power Engineering | ||
دوره 10، شماره 2، آبان 2022، صفحه 165-174 اصل مقاله (762.03 K) | ||
نوع مقاله: Research paper | ||
شناسه دیجیتال (DOI): 10.22098/joape.2022.9042.1626 | ||
نویسندگان | ||
F. Babaei* ؛ A. Safari؛ J. Salehi | ||
Department of Electrical Engineering, Azarbaijan Shahid Madani University, Tabriz, Iran | ||
چکیده | ||
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. | ||
کلیدواژهها | ||
Time-varying Delay؛ Lyapunov-Krasovskii theory؛ LMI؛ Load Frequency Control؛ Electric Vehicles Aggregator | ||
مراجع | ||
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