Robust LFC in a deregulated environment: Multi-objective control approach

Bevrani, Hassan, Mitani, Yasunori, & Tsuji, Kiichiro (2004) Robust LFC in a deregulated environment: Multi-objective control approach. In IEEJ Transactions on Power and Energy, Institute of Electrical Engineers of Japan (IEEJ), Nagoya, pp. 11-16.

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This paper addresses a new decentralized robust load-frequency control (LFC) design in a multi-area power system under deregulation based on bilateral policy scheme. In each control area, the effect of bilateral contracts is taken into account as a set of new input signals to modify the traditional LFC structure. The LFC problem is considered as a multi-objective control problem and formulated via a mixed H2/H∞ control technique, then it is easily carried out to synthesis the desired low-order robust controllers by solving standard linear matrix inequalities (LMI). A three-area power system example with possible contract scenarios and a wide range of load changes is given to illustrate the developed approach. The results of the proposed multi-objective control strategy are compared with pure H∞ design. The resulting controllers are shown to maintain the robust performance and minimize the effect of disturbances and specified uncertainties.

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ID Code: 14605
Item Type: Conference Paper
Refereed: Yes
Additional Information: Self-archiving of the author-version is not yet supported by this publisher.
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Keywords: Load frequency control, mixed H2/H∞ control, restructured power system, robust performance
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Copyright Owner: Copyright 2004 Institute of Electrical Engineers of Japan (IEEJ)
Deposited On: 28 Aug 2008 00:00
Last Modified: 09 Jun 2010 13:03

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