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JACIII Vol.19 No.3 pp. 439-446
doi: 10.20965/jaciii.2015.p0439
(2015)

Paper:

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Polynomial Controller Design Using Disturbance Observer

Hugang Han* and Hak-Keung Lam**

*Prefectural University of Hiroshima
1-1-71 Ujina-Higashi, Minami-ku, Hiroshima 734-8558, Japan

**King’s College London
WC2R 2LS London, United Kingdom

Received:
August 4, 2014
Accepted:
March 3, 2015
Published:
May 20, 2015
Creative Commons License
Keywords:
polynomial fuzzy model, disturbance observer, asymptotically stable, lumpted disturbane, stability analysis
Abstract
Disturbance observer-based control provides a promising approach to handle system disturbance and improve robustness. In this paper, a new fuzzy disturbance observer (FDO) is proposed into the SOS-based approach, where the polynomial fuzzy model is used to develop the system controller. Compared with other works published so far, the FDO mainly features two things: 1) the estimation error between the FDO and disturbance shrinks asymptotically to zero if the disturbance has a constant steady-state value; 2) parameters involved in the FDO is adjusted on the basis of the polynomial fuzzy model which is basically nonlinear. Finally, computer simulations are provided to illustrate the effectiveness of the proposed approach.
Cite this article as:
H. Han and H. Lam, “Polynomial Controller Design Using Disturbance Observer,” J. Adv. Comput. Intell. Intell. Inform., Vol.19 No.3, pp. 439-446, 2015.
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