Controller Designs for a Class of Polynomial Fuzzy Models
Hugang Han* and Yuta Higaki**
*Prefectural University of Hiroshima
1-1-71 Ujina-Higashi, Minami-ku, Hiroshima 734-8558, Japan
**Hitachi Solutions West Japan, Ltd.
3-33 Hatchobori, Naka-ku, Hiroshima 730-0013, Japan
This paper proposes two polynomial fuzzy controllers in the context of the fuzzy polynomial model with a so-called lumped disturbance. One, called regular controller, is designed only based on the control system stability, while the other, called controller with disturbance observer, is designed on the basis of both control system stability and a disturbance observer proposed in this paper. Though both controllers are able to stabilize the control system, computer simulations conclude that the latter is better than the former from the point of view of the control performance when it comes to the lumped disturbance in the system concerned.
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