ELECTROMAGNETIC VIBRATION DISTURBING FORCES AT THE ECCENTRICITY OF ROTOR OF TURBOGENERATOR
Journal Title: Електротехніка і Електромеханіка - Year 2016, Vol 0, Issue 4
Abstract
Electromagnetic vibration disturbing forces in different variants of the rotor displacement from an axis of the stator bore is car-ried out. Investigation for ТG type ТGV-200-2 by finite element method in COMSOL Multiphysics is carried out. The field mathematical model of static and dynamic eccentricity is described. The amplitude vibration disturbing forces are greatest, when a static eccentricity direction coincides with an axis of the stator winding phase is shown. The diagnostic features static and dy-namic eccentricities are formulated. The most value of forces in the point with minimal air gap is shown. The diagnostic features static and dynamic eccentricities and the method of diagnostic eccentricity are formulated. Diagnostic feature of static eccentricity is to change the amplitude Maxwell stress tensor is established. The dynamic eccentricity diagnostic features are appearance in the spectrum of vibration disturbing forces rotating and multiple harmonics.
Authors and Affiliations
Yu. M. Vaskovskyi, A. M. Melnyk, O. I. Tytko
Keywords
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- EP ID EP296422
- DOI 10.20998/2074-272X.2016.4.02
- Views 104
- Downloads 0
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