Fuzzy Logic Based Gains Determination of Induction Motor Flux Observers

EPE Journal ◽  
2002 ◽  
Vol 12 (2) ◽  
pp. 1-12 ◽  
Author(s):  
F Berthereau ◽  
B Robyns ◽  
J.P Hautier
Keyword(s):  
Fuzzy Logic ◽  
Induction Motor

scholarly journals Electric Drive Control with Rotor Resistance and Rotor Speed Observers Based on Fuzzy Logic

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
C. Ben Regaya ◽  
A. Zaafouri ◽  
A. Chaari
Keyword(s):  
Fuzzy Logic ◽  
Induction Motor ◽  
Simple Algorithm ◽  
Simultaneous Estimation ◽  
Rotor Speed ◽  
Motor Speed ◽  
Speed Sensor ◽  
Rotor Resistance ◽  
Drive Control

Many scientific researchers have proposed the control of the induction motor without speed sensor. These methods have the disadvantage that the variation of the rotor resistance causes an error of estimating the motor speed. Thus, simultaneous estimation of the rotor resistance and the motor speed is required. In this paper, a scheme for estimating simultaneously the rotor resistance and the rotor speed of an induction motor using fuzzy logic has been developed. We present a method which is based on two adaptive observers using fuzzy logic without affecting each other and a simple algorithm in order to facilitate the determination of the optimal values of the controller gains. The control algorithm is proved by the simulation tests. The results analysis shows the characteristic robustness of the two observers of the proposed method even in the case of variation of the rotor resistance.

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