Title :
Phenomenon Rotor Fault-Multiple Electrical Rotor Asymmetries in Induction Machines
Author :
Kral, Christian ; Kapeller, H. ; Gragger, J.V. ; Haumer, A. ; Kubicek, B.
Author_Institution :
Austrian Inst. of Technol., Vienna, Austria
fDate :
5/1/2010 12:00:00 AM
Abstract :
In the literature, the effects caused by a single or several adjacently broken rotor bars, or a broken end ring are thoroughly investigated. The phenomenon of various nonadjacently broken rotor bars has not been studied so far in detail. Since nonadjacently broken rotor bars may give rise to fault signatures, which are not directly related with the fault extent, it is important to understand the nature of multiple electrical rotor asymmetries in induction machines. The purpose of this paper is thus to investigate several combinations of electrical rotor asymmetries, to systematically elaborate the phenomena related to the broken bars and end rings. In this paper, a sophisticated simulation model and measurement results are used to analyze the phenomenon rotor fault.
Keywords :
asynchronous machines; rotors; broken bars; end rings; fault signatures; induction machines; multiple electrical rotor asymmetries; phenomenon rotor fault; rotor bars; Analytical models; Bars; Impedance; Induction machines; Stator windings; Torque; Electrical rotor asymmetries; induction machine; rotor fault; simulation model; skewing;
Journal_Title :
Power Electronics, IEEE Transactions on
DOI :
10.1109/TPEL.2009.2037502