Title :
A method for dynamic simulation and detection of air-gap eccentricity in induction machines
Author :
Toliyat, H.A. ; Arefeen, M.S. ; Parlos, A.G.
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
Abstract :
In this paper a method is proposed which enables the detection of the air-gap eccentricity in induction machines at an early stage. It is shown that by proper modeling of the induction motor it is possible to detect the effect of eccentricity on the machine line currents, whether the machine is running off a sinusoidal supply or a converter. The effect of eccentricity on the machine current signature is discussed. Theoretical foundations of the technique, as well as the detailed differential equations describing the machine performance under rotor eccentricity are presented
Keywords :
air gaps; differential equations; inductance; induction motors; machine theory; rotors; simulation; air-gap eccentricity detection; converter; differential equations; dynamic simulation; inductance calculation; induction machines; induction motor modelling; machine line currents; machine performance; rotor bars; sinusoidal supply; stator phases; Air gaps; Circuit faults; Costs; Differential equations; Induction machines; Maintenance; Rotors; Shafts; Stator cores; Stator windings;
Conference_Titel :
Industry Applications Conference, 1995. Thirtieth IAS Annual Meeting, IAS '95., Conference Record of the 1995 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-3008-0
DOI :
10.1109/IAS.1995.530358
