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Obtaining the worst case RGA and RDGA for uncertain systems via optimization

Lookup NU author(s): Rudy Agustriyanto, Dr Jie ZhangORCiD


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An optimization based method for calculating the worst case lower and upper bounds of relative gain array (RGA) and relative disturbance gain array (RDGA) for uncertain process models is presented. Its superiority over the previous methods reported in the literature is discussed. Simulation examples are used to illustrate the proposed method. Both RGA and RDGA ranges are useful for control structure determination and the related robustness as they provide information regarding the sensitivity to gain uncertainties. It is shown that for a particular degree of uncertainties, the range of process gain determinant should not include 0 to ensure the successfulness of the calculation. © 2007 IEEE.

Publication metadata

Author(s): Agustriyanto R, Zhang J

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: Proceedings of the American Control Conference

Year of Conference: 2007

Pages: 5360-5365

Publisher: IEEE Press Books


DOI: 10.1109/ACC.2007.4282410

Library holdings: Search Newcastle University Library for this item

ISBN: 1424409888