Fuzzy Logic Controller-An Advanced & Efficient Technique for Controlling Drives

R. Suman*
Department of Electrical & Electronics Engineering, Regional Centre, Anna University, Coimbatore, India.
Periodicity:August - October'2013
DOI : https://doi.org/10.26634/jic.1.4.2602

Abstract

The basic idea is to design a fuzzy logic hysteresis comparator-based direct torque control scheme of an induction motor under varying dynamic conditions[1]. The major problem that is usually associated with DTC drive is the high torque ripple. To overcome this problem a torque hysteresis band with variable amplitude is proposed based on fuzzy logic[4]. The fuzzy logic controller is used to adjust the bandwidth of the torque hysteresis controller in order to reduce the torque and flux ripples and, to improve motor dynamic response[3],[4]. Based on the slopes of motor-estimated torque and stator current, an FLC is designed to select the optimum bandwidth of the torque hysteresis controller. In order to test the performance of the proposed FLC-based DTC scheme for IM drive, a complete simulation model is developed using MATLAB/Simulink.

Keywords

Direct Torque Control (DTC), Fuzzy Logic Controller (FLC), Induction Motor(IM), Digital Signal Processor(DSP), Field Oriented Control (FOC), Space Vector Modulation(SVM), Direct Torque Fuzzy Control(DTFC).

How to Cite this Article?

Suman, R. (2013). Fuzzy Logic Controller-An Advanced & Efficient Technique for Controlling Drives. i-manager’s Journal on Instrumentation and Control Engineering, 1(4), 18-26. https://doi.org/10.26634/jic.1.4.2602

References

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