Convex model for controlled Islanding in transmission expansion planning to improve frequency stability

Esmaili, Masoud; Ghamsari-Yazdel, Mohammad; Amjady, Nima; Chung, C. Y.

Title: Convex model for controlled Islanding in transmission expansion planning to improve frequency stability
Creator: Esmaili, Masoud; Ghamsari-Yazdel, Mohammad; Amjady, Nima; Chung, C. Y.
Date: 2021
Type: Journal article
Identifier: http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/191270
Identifier: vital:17762
Identifier: https://doi.org/10.1109/TPWRS.2020.3009435
Identifier: ISSN:0885-8950
Abstract: Intentional controlled islanding (ICI) is the last resort to split an endangered power system into smaller islands to prevent blackout. New lines that are planned by transmission expansion planning (TEP) can affect the stability of islands during ICI. In this paper, an ICI-TEP method is proposed to improve the stability of islands by more efficient planning of transmission assets. Moreover, by developing a criterion for the frequency of center of inertia (COI) in each island, the frequency deviations of generators from the COI frequency are minimized to result in more stable islands. The proposed ICI-TEP, incorporating AC network representation, is modeled as mixed-integer linear programming and quadratic convex problems ensuring tractability. A Benders decomposition strategy is also proposed to solve the problem. Results of testing the proposed ICI-TEP method on IEEE 39-bus and 300-bus test systems confirm its effectiveness, compared to conventional TEP, in terms of coping with sever disturbances by creating more stable islands with a lower load shedding.
Publisher: IEEE
Relation: IEEE transactions on power systems Vol. 36, no. 1 (2021), p. 58-67
Rights: All metadata describing materials held in, or linked to, the repository is freely available under a CC0 licence
Subject: Center of inertia; Computational modeling; Convex optimization; Frequency stability; Generators; Intentional controlled islanding; Mathematical model; Planning; Power system stability; Stability criteria; Transmission expansion planning
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