Calculation of the influence of slot geometry on the magnetic flux density of the air gap

• Autorzy: Lima R. A. de , Coimbra A. C. P. , Almeida T. , Gomes V. M. , Pereira T. M. , Alves A. J. , Calixto W. P.

Identyfikatory

DOI

10.22149/teee.v2i1.89

• Języki publikacji: EN

Abstrakty

EN

The objective of this work is to investigate the influence of slotted air gap constructive parameters on magnetic flux density of rotating machines. For this purpose, different approaches were used to solve the air gap field diagram using finite element method and the magnetic field distribution uniformity was evaluated by Carter's factor calculation on two-dimensional and three-dimensional models. Sensitivity analysis of slot constructive parameters was performed and results show that slot geometry modifies the magnetic flux on air gap and shifts the air gap magnetic equipotential midline of double slotted machines. Finally, minimization of Carter’s factor on two-dimensional model presents an optimized slot geometry with a near uniform magnetic flux density distribution.

Słowa kluczowe

EN

Carter's factor; finite element method; rotating machines

• Wydawca: EEEIC International Publishing
• Czasopismo: Transactions on Environment and Electrical Engineering
• Rocznik: 2017
• Tom: Vol. 2, No. 1
• Strony: 81--89
• Opis fizyczny: Bibliogr. 19 poz., rys., tab.

Twórcy

autor

Lima R. A. de

• Federal Institute of Goias, IFG and Federal University of Goias, UFG, Brazil

autor

Coimbra A. C. P.

• Institute of Systems and Robotics, ISR of Coimbra University, UC, Rua Silvio Lima, Zip 3030-194, Coimbra, Portugal

autor

Almeida T.

• Institute of Systems and Robotics, ISR of Coimbra University, UC, Rua Silvio Lima, Zip 3030-194, Coimbra, Portugal

autor

Gomes V. M.

• Federal Institute of Goias, IFG and Federal University of Goias, UFG, Brazil

autor

Pereira T. M.

• Federal Institute of Goias, IFG and Federal University of Goias, UFG, Brazil

autor

Alves A. J.

• Federal Institute of Goias, IFG and Federal University of Goias, UFG, Brazil

autor

Calixto W. P.

• Experimental & Technological Research and Study Group, NExT of Federal Insitute of Goias, IFG, Rua 75, 46, Centro, Zip: 74055-110, Goiania, Goias, Brazil
• Electrical and Computer Engineering School

Bibliografia

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• [3] G. Kron, "Induction Motor Slot Combinations Rules to Predetermine Crawling, Vibration, Noise and Hooks in the Speed-Torque Curve,” Transactions of the American Institute of Electrical Engineers, vol. 50, no. 2, pp. 757-767, June 1931.
• [4] T.A. Lipo, Introduction to AC Machine Design. Wisconsin Power Electronics Research Center, Wisconsin, 2004.
• [5] E.M. Freeman, "The calculation of harmonics, due to slotting, in the flux-density waveform of a dynamo-electric machine," in Proceedings of the IEE - Part C: Monographs, vol. 109, no. 16, pp. 581-588, September 1962.
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• [15] Z.X. Fang, Z.Q. Zhu, L.J. Wu and Z.P. Xia, "Simple and accurate analytical estimation of slotting effect on magnet loss in fractional-slot surface-mounted PM machines," 2012 XXth International Conference on Electrical Machines, Marseille, 2012, pp. 464-470.
• [16] W.P. Calixto, J.C. da Mota and B.P. Alvarenga, “Methodology for the reduction of parameters in the inverse transformation of Schwartz-Christoffel applied to electromagnetic devices with axial geometry”, International Journal of Numerical Modelling, vol. 24, 2001.
• [17] W.P. Calixto, E.G. Marra, L. da Cunha Brito and B.P. Alvarenga, “A new metthodology to calculate Carter fator using genetic algorithms,” International Journal of Numerical Modelling, vol. 24, 2011.
• [18] J.P.C. Kleijen, Experimental Design for Sensitivity Analysis, Optimization and Validation of Simulation Models, pp. 173-223, Johm Wiley & Sons, Inc. 2007, [Online] Available: http://dx.doi.org/10.1002/ 9780470172445.ch6.
• [19] K.L. Du and M.N.S. Swamy, Search and optimization by metaheuristics: techniques and algorithms inspired by nature, Birkhäuser, 2016.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).