WSEAS Transactions on Systems
Print ISSN: 1109-2777, E-ISSN: 2224-2678
Volume 19, 2020
Robust Control Facing a Large Scale Parameter Variation in a Sensorless Vector Controlled Induction Motor Drive
Authors: , ,
Abstract: In vector control systems using the slip frequency control method, the rotor resistance of induction motors is used to calculate a slip frequency. Thus the change in temperature and saturation levels cause the variation of rotor resistance value and hence the deterioration of the whole torque control characteristic. This paper presents a simulation of induction motor behavior facing a sudden parameter variation in very low speed basing on fuzzy logic perturbation rejection controllers, the rotor flux and speed are observed by an adaptive Luenberger observer based fuzzy adaptation mechanism. Simulation results show that the proposed control with the proposed fuzzy regulation provide good performance dynamic characteristics for a large scale parameter variation. All simulations have been realized in MatLab/Simulink.
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Keywords: Parameter variation, Rotor resistance variation, Induction motor drive, Direct vector control, Fuzzy logic regulation, Fuzzy adaptation mechanism, Speed sensorless, Adaptive Luenberger observer
Pages: 68-74
DOI: 10.37394/23202.2020.19.10