Title :
Development of some fuzzy controllers with non-homogenous dynamics with respect to the input channels meant for a class of systems
Author :
Precup, R.-E. ; Preitl, S.
Author_Institution :
Dept. of Autom., “Politeh.” Univ. of Timisoara, Timisoara, Romania
fDate :
Aug. 31 1999-Sept. 3 1999
Abstract :
The paper presents a systematical development method for four fuzzy controllers with non-homogenous dynamics with respect to the two input channels; the proposed controller structures are meant for a class of second order and third order plants, which is specific to the field of electrical drives. The electrical drives are characterized by standard models for which even the classical (linear) control structures give satisfaction [ast95]. The design relations result on the basis of the fact that fuzzy controllers can be, in some certain conditions, well approximated by linear controllers and, so, the Extended Symmetrical Optimum method [pre96] is applicable in this situation. A detailed analysis based on digital simulation results proves that the proposed fuzzy controllers can ensure better control system performance with respect to the reference input in comparison with other structures containing conventional controllers.
Keywords :
control system synthesis; electric drives; fuzzy control; linear systems; machine control; optimal control; classical control structures; conventional controllers; design relations; electrical drives; extended symmetrical optimum method; fuzzy controllers; input channels; linear control structures; nonhomogenous dynamics; pre96; second order plants; standard models; systematical development method; third order plants; Context; Control systems; DC motors; Digital simulation; Fuzzy control; Mathematical model; Tuning; Development of fuzzy controller; Extended Symmetrical Optimum method; non-homogenous dynamics;
Conference_Titel :
Control Conference (ECC), 1999 European
Conference_Location :
Karlsruhe
Print_ISBN :
978-3-9524173-5-5