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Zbl 1206.49047
Ketabi, A.; Navardi, M.J.
Optimization shape of variable capacitance micromotor using differential evolution algorithm. (English)
[J] Math. Probl. Eng. 2010, Article ID 909240, 15 p. (2010). ISSN 1024-123X; ISSN 1563-5147/e

Summary: A new method for optimum shape design of Variable Capacitance Micromotor (VCM) using Differential Evolution (DE), a stochastic search algorithm, is presented. In this optimization exercise, the objective function aims to maximize torque value and minimize the torque ripple, where the geometric parameters are considered to be the variables. The optimization process is carried out using a combination of DE algorithm and FEM analysis. Fitness value is calculated by FEM analysis using {\tt COMSOL3.4}, and the DE algorithm is realized by {\tt MATLAB7.4}. The proposed method is applied to a VCM with 8 poles at the stator and 6 poles at the rotor. The results show that the optimized micromotor using DE algorithm had higher torque value and lower torque ripple, indicating the validity of this methodology for VCM design.

MSC 2000:: *49Q10 Optimization of the shape other than minimal surfaces
93E25 Computational methods in stochastic control
90C15 Stochastic programming

Keywords: optimum shape design; variable capacitance micromotor; differential evolution; stochastic search algorithm

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Zentralblatt MATH Berlin [Germany]