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Optimization Shape of Variable Capacitance Micromotor Using Differential Evolution Algorithm

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  • A. Ketabi
  • M. J. Navardi

Abstract

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 COMSOL3.4, and the DE algorithm is realized by 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.

Suggested Citation

  • A. Ketabi & M. J. Navardi, 2010. "Optimization Shape of Variable Capacitance Micromotor Using Differential Evolution Algorithm," Mathematical Problems in Engineering, Hindawi, vol. 2010, pages 1-15, January.
    • Handle: RePEc:hin:jnlmpe:909240
    DOI: 10.1155/2010/909240
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