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SuleimanBANIHANI,KhalidAL-WIDYAN,AhmadAL-JARRAH,MohammadABABNEH
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(Mechatronics Engineering Department, The Hashemite University)
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Received:August 08, 2011Revised:May 07, 2012
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A genetic algorithm based lookup table approach for optimal stepping sequence of open-loop stepper motor systems
Suleiman BANIHANI,Khalid AL-WIDYAN,Ahmad AL-JARRAH,Mohammad ABABNEH
(Mechatronics Engineering Department, The Hashemite University)
Abstract:
Stepper motor driven systems are widely used in industrial applications. They are mainly used for their low cost open-loop high performance. However, as dynamic systems need to be increasingly faster and their motion more precise, it is important to have an open-loop system which is accurate and reliable. In this paper, we present a novel technique in which a genetic algorithm (GA) based lookup table approach is used to find the optimal stepping sequence of an open-loop stepper motor system. The optimal sequence objective is to minimize residual vibration and to accurately follow trajectory. A genetic algorithm is used to find the best stepping sequence which minimizes the error and improves the system performance. Numerical simulation has showed the effectiveness of our approach to improve the system performance for both position and velocity. The optimized system reduced the residual vibration and was able to follow the trajectory with minimal error.
Key words:  Stepper motor  Open-loop  Genetic algorithm  Optimal  Stepping sequence  Control