Influence and evaluation of non‐ideal manufacturing process on the cogging torque of a permanent magnet excited synchronous machine

• Isabel Coenen ^[1] ; Mercedes Herranz Gracia ^[1] ; Kay Hameye ^[1]
  1. [1] Rheinisch-Westfälische Technische Hochschule Aachen University

     Rheinisch-Westfälische Technische Hochschule Aachen University

     Städteregion Aachen, Alemania

     
• Localización: Compel: International journal for computation and mathematics in electrical and electronic engineering, ISSN 0332-1649, Vol. 30, Nº 3 (Special Issue: EPNC 2010), 2011, págs. 876-884
• Idioma: inglés
• Enlaces
  • Texto completo
• Resumen

  • Purpose – The purpose of this paper is to describe how a minimisation of cogging torque is performed with respect to the non‐ideal manufacturing process, aiming at a robust design of the studied machine, focusing on magnetisation faults and the use of different qualities of the permanent magnet material.

    Design/methodology/approach – The applied methodology is a combination of design of experiments and finite element analysis to minimise the cogging torque of the estimated machine. Different qualities of the permanent magnet material are investigated by a stochastic analysis.

    Findings – A robust design of the machine is achieved, which is verified by a stochastic analysis. Furthermore, this analysis shows the strong influence of the magnet quality on the cogging torque.

    Practical implications – This paper provides a method for a machine design which is robust against non‐ideal manufacturing and an approach to prove the use of a bad quality for a possible reduction of the fabrication costs.

    Originality/value – This paper gives a close insight on how to investigate non‐ideal manufacturing and in particular its influence on the cogging torque.