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Finite element analysis of saturation effects in a squirrel cage electrical machine. (English) Zbl 0862.65087

Summary: The paper presents a method for the finite element (FE) analysis of saturation effects in a squirrel-cage electrical machine. The proposed mathematical model includes the FE equations of the electromagnetic field, the equations which define the connection of windings, and the mechanical equation. It applies an approach based on a simultaneous solution of these equations, paying special attention to the movement simulation and applies the time-stepping method with a fixed grid, independent of the rotar position. In the method the motional effects are simulated by trigonometric interpolation of the results for the previous time step.

MSC:

65Z05 Applications to the sciences
65M60 Finite element, Rayleigh-Ritz and Galerkin methods for initial value and initial-boundary value problems involving PDEs
35Q60 PDEs in connection with optics and electromagnetic theory
78A55 Technical applications of optics and electromagnetic theory
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References:

[1] 1.Arkkio, A. ”Time stepping finite element analysis of induction motors”, Proceedings of ICEM, 1988, pp. 275-80. · Zbl 0658.65125
[2] DOI: 10.1109/20.312634 · doi:10.1109/20.312634
[3] 3.Williamson, S. ”Induction motor modelling using finite elements”, Proceedings of ICEM, Vol. 1, 1994, pp. 1-8.
[4] DOI: 10.1109/20.106510 · doi:10.1109/20.106510
[5] 5.Oberretl, K. ”Uber Sättigungsoberfelder in Induktionsmaschinen”, Elektrotechnik und Maschinenbau, Vol. 78, 1961, pp. 787-94.
[6] DOI: 10.1109/20.123956 · doi:10.1109/20.123956
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