An Approach of the Wavelet-Fuzzy Controller of Vector Control System by the Induction Motor

Abstract

The paper presents a wavelet-fuzzy controller of a field-oriented control system of belt conveyor drive. A discrete wavelet transform is used to decompose the speed error signal into various frequency components. The transformed error coefficients and scaling coefficients are used to generate the motor control signal The proposed controller is satisfied the speed control problem for a closed control system. The field-oriented control scheme with a wavelet-fuzzy controller under various dynamic operating conditions was investigated. The results of the comparison of the work of the traditional PI controller and the proposed wavelet-fuzzy controller are presented. The simulation results demonstrate the effectiveness of the proposed wavelet-fuzzy controller. Application of the proposed approach of the wavelet-fuzzy controller allows reducing of electromagnetic moment vibrations.