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New heuristic-based design of robust power system stabilizers

New heuristic-based design of robust power system stabilizers
New heuristic-based design of robust power system stabilizers
This paper proposes a new robust design of power system stabilizers (PSSs) in a multimachine power system using a heuristic optimization method. The structure of each PSS used is similar to that of a conventional lead/lag stabilizer. The proposed design regards a multimachine power system with PSSs as a multi-input multi-output (MIMO) control system. Additionally, a multiplicative uncertainty model is taken into account in the power system representation. Accordingly, the robust stability margin can be guaranteed by a multiplicative stability margin (MSM). The presented method utilizes the MSM as the design specification for robust stability. To acquire the control parameters of PSSs, a control design in MIMO system is formulated as an optimization problem. In the selection of objective function, not only disturbance attenuation performance but also robust stability indices are considered. Subsequently, the hybrid tabu search and evolutionary programming (hybrid TS/EP) is employed to search for the optimal parameters. The significant effects of designed PSSs are investigated under several system operating conditions.
Robust control, tabu search, evolutionary programming, optimization problems, multivariable control system, power system stabilizer.
0-7803-8610-8
618-623
Dechanupaprittha, Sanchai
fbfe2e7d-283e-4f3d-9f8b-776d4d3767f3
Ngamroo, Issarachai
ee92f13f-7af8-492f-9ed7-0c71300ffb93
Pasupa, Kitsuchart
952ededb-8c97-41b7-a65b-6aba31de2669
Tippayachai, Jarurote
f59c4c96-eeae-4f15-a43c-df72d42c23a1
Hongesombut, Komsan
48224735-3829-4144-a513-d331c53744d7
Mitani, Yasunori
b5136002-e1be-49d4-8d42-5947844a3680
Dechanupaprittha, Sanchai
fbfe2e7d-283e-4f3d-9f8b-776d4d3767f3
Ngamroo, Issarachai
ee92f13f-7af8-492f-9ed7-0c71300ffb93
Pasupa, Kitsuchart
952ededb-8c97-41b7-a65b-6aba31de2669
Tippayachai, Jarurote
f59c4c96-eeae-4f15-a43c-df72d42c23a1
Hongesombut, Komsan
48224735-3829-4144-a513-d331c53744d7
Mitani, Yasunori
b5136002-e1be-49d4-8d42-5947844a3680

Dechanupaprittha, Sanchai, Ngamroo, Issarachai, Pasupa, Kitsuchart, Tippayachai, Jarurote, Hongesombut, Komsan and Mitani, Yasunori (2004) New heuristic-based design of robust power system stabilizers. Proceedings of 2004 International Conference on Power System Technology (POWERCON 2004), Singapore. 21 - 24 Nov 2004. pp. 618-623 . (doi:10.1109/ICPST.2004.1460068).

Record type: Conference or Workshop Item (Other)

Abstract

This paper proposes a new robust design of power system stabilizers (PSSs) in a multimachine power system using a heuristic optimization method. The structure of each PSS used is similar to that of a conventional lead/lag stabilizer. The proposed design regards a multimachine power system with PSSs as a multi-input multi-output (MIMO) control system. Additionally, a multiplicative uncertainty model is taken into account in the power system representation. Accordingly, the robust stability margin can be guaranteed by a multiplicative stability margin (MSM). The presented method utilizes the MSM as the design specification for robust stability. To acquire the control parameters of PSSs, a control design in MIMO system is formulated as an optimization problem. In the selection of objective function, not only disturbance attenuation performance but also robust stability indices are considered. Subsequently, the hybrid tabu search and evolutionary programming (hybrid TS/EP) is employed to search for the optimal parameters. The significant effects of designed PSSs are investigated under several system operating conditions.

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More information

Published date: 21 November 2004
Additional Information: Event Dates: 21-24 November 2004
Venue - Dates: Proceedings of 2004 International Conference on Power System Technology (POWERCON 2004), Singapore, 2004-11-21 - 2004-11-24
Keywords: Robust control, tabu search, evolutionary programming, optimization problems, multivariable control system, power system stabilizer.
Organisations: Electronics & Computer Science

Identifiers

Local EPrints ID: 266597
URI: http://eprints.soton.ac.uk/id/eprint/266597
ISBN: 0-7803-8610-8
PURE UUID: e90ef869-b1bf-44e7-b848-7c8d02e4d02f

Catalogue record

Date deposited: 23 Aug 2008 09:41
Last modified: 19 Jul 2019 22:21

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