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Fuzzy logic applied to speed control of a stepping motor drive

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3 Author(s)
F. Betin ; Dept. of Electr. Eng., Univ. of Picardie Jules Verne, Cuffies, France ; D. Pinchon ; G. -A. Capolino

Nowadays, thanks to the development of microprocessors, stepping motors are widely used in robotics and in the numerical control of machine tools where they have to perform high-precision positioning operations. Nevertheless, the variations of the mechanical configuration of the drive, which are common to these two applications, can lead to a loss of synchronism for high stepping rates. Moreover, the classical open-loop speed control is weak and a closed-loop control becomes necessary. In this paper, the fuzzy logic principle is applied to control the speed of a stepping motor drive with feedback. An advanced test bed is used in order to evaluate the tracking properties and the robustness capacities of the fuzzy logic controller when variations of the mechanical configuration occur. The experiment has been performed using a low-cost 16 bit microcontroller in order to verify the design performance

Published in:

IEEE Transactions on Industrial Electronics  (Volume:47 ,  Issue: 3 )