Influence of the rotor eccentricity on the torque of a cage induction machine

• Autorzy: Silwal B. , Rasilo P. , Belahcen A. , Arkkio A.

Identyfikatory

DOI

10.1515/aee-2017-0029

• Języki publikacji: EN

Abstrakty

EN

The non-uniform air gap in an electrical machine caused by rotor eccentricity creates an asymmetrical flux-density distribution in the air gap. This can affect the nominal torque produced by the machine. Eccentricity also produces forces that act on the rotor which may also have an effect on the torque. Thus, it is important to know how the torque of the machine behaves. In this paper, the torque of a cage induction machine is studied when the machine has dynamic eccentricity. The study is performed using the finite element method and a magnetic vector potential formulation. The torque is calculated by the method of energy balance. The harmonic components of the torque are also analyzed. The results show that the machine under eccentricity does not exhibit the same torque as a normal healthy machine. The harmonic components around the first principal slot harmonic is most affected.

Słowa kluczowe

EN

cage induction machine; dynamic eccentricity; electromagnetic torque; energy balance; finite element method; harmonics

• Wydawca: Polish Academy of Sciences, Committee on Electrical Engineering
• Czasopismo: Archives of Electrical Engineering
• Rocznik: 2017
• Tom: Vol. 66, nr 2
• Strony: 383--396
• Opis fizyczny: Bibliogr. 23 poz., rys., tab., wz.

Twórcy

autor

Silwal B.

• Department of Electrical Engineering and Automation, Aalto University P.O. Box 13000, FI-00076 AALTO, Finland

autor

Rasilo P.

• Department of Electrical Engineering and Automation, Aalto University P.O. Box 13000, FI-00076 AALTO, Finland
• Department of Electrical Engineering, Tampere University of Technology P.O. Box 692, FI-33101, Tampere, Finland

autor

Belahcen A.

• Department of Electrical Engineering and Automation, Aalto University P.O. Box 13000, FI-00076 AALTO, Finland

autor

Arkkio A.

• Department of Electrical Engineering and Automation, Aalto University P.O. Box 13000, FI-00076 AALTO, Finland

Bibliografia

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).