Title :
Shaft torsional vibration due to non-linear loads in low capacity turbine units
Author :
Escobar Martinez, J.C.A. ; de la Rosa, F.
Author_Institution :
FIME, UANL, San Nicolas De Los Garza, Mexico
Abstract :
The steady increase in the use of electronics, converters and a wide range of nonlinear loads in industrial facilities has led to higher harmonic levels at the source side. Stator harmonic currents whose frequencies may coincide with turbine-generator shaft system natural frequencies can develop shaft torsional vibrations that can damage the generator. This effect is investigated in this paper.
Keywords :
harmonic distortion; load (electric); machine theory; power conversion harmonics; stators; thermal power stations; torsion; turbines; vibrations; low-capacity turbine units; natural frequencies; nonlinear loads; shaft torsional vibration; source-side harmonic levels; stator harmonic currents; turbine-generator shaft system; Fatigue; Mathematical model; Resonant frequency; Shafts; Stators; Steady-state; Thermal pollution; Torque; Turbines; Vibrations;
Conference_Titel :
Power Engineering Society Summer Meeting, 2001
Conference_Location :
Vancouver, BC, Canada
Print_ISBN :
0-7803-7173-9
DOI :
10.1109/PESS.2001.970282
