Cogging Torque Minimization in PM Motors Using Robust Design Approach

Cogging torque minimization is necessary for low torque ripple applications such as precision tooling, robotics, etc. Various techniques are available but few techniques are proved to be effective in mass production under manufacturing tolerances/variations. The research provides a design approach t...

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Veröffentlicht in:IEEE transactions on industry applications 2011-07, Vol.47 (4), p.1661-1669
Hauptverfasser: Islam, M. S., Islam, R., Sebastian, T., Chandy, A., Ozsoylu, S. A.
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container_end_page 1669
container_issue 4
container_start_page 1661
container_title IEEE transactions on industry applications
container_volume 47
creator Islam, M. S.
Islam, R.
Sebastian, T.
Chandy, A.
Ozsoylu, S. A.
description Cogging torque minimization is necessary for low torque ripple applications such as precision tooling, robotics, etc. Various techniques are available but few techniques are proved to be effective in mass production under manufacturing tolerances/variations. The research provides a design approach to minimize cogging torque by making the motor robust to manufacturing variations and dimensional tolerances. Several control and noise factors are identified to apply the robust design technique. The quality of robustness is judged by the signal-to-noise ratio. A tradeoff is exercised to maximize output torque in selecting the control parameters. The research shows the effectiveness of such design techniques in designing motors for mass production without adding cost or complexity. Experimentation by modeling has been chosen using finite element analysis. Motors using the optimized parameters are built and tested thus verifying the design approach.
doi_str_mv 10.1109/TIA.2011.2154350
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subjects Arrays
Cogging
Cogging torque
Design engineering
Forging
Mass production
Mathematical models
Minimization
Motors
Noise
Optimization
permanent magnet motor
robust design
Robustness
Rotors
Stators
Studies
Taguchi's method
Torque
title Cogging Torque Minimization in PM Motors Using Robust Design Approach
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