Shaft torsional oscillations of hydrogenerators
The report describes efforts to analyze, model, and instrument the shaft torsional oscillations of electric generators. The mechanics of the shaft torsional modes are presented through the defining analytical equations from which block diagram and analog computer representation of shaft torsional systems have been developed. Results of an analog study of the torsional mode of a hydrogenerator as well as calculated data for several Bureau of Reclamation hydrogenerators are presented. An instrumentation system which employes shaft-mounted strain gages to provide a torsional signal has been developed for direct field measurement of the torsional behavior of hydrogenerator shafts. The design and circuit configuration of that instrumentation system are presented. Results from field measurements of the shaft torsional oscillations at three sites are also presented.
- Research Organization:
- Bureau of Reclamation, Denver, CO (USA)
- OSTI ID:
- 5509871
- Report Number(s):
- PB-102155
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
130300* -- Hydro Energy-- Plant Design & Operation
DAMPING
ELECTRIC GENERATORS
ELECTRIC POWER
ENERGY SOURCES
HYDROELECTRIC POWER
HYDROELECTRIC POWER PLANTS
MACHINE PARTS
MEASURING INSTRUMENTS
MECHANICAL VIBRATIONS
OSCILLATIONS
POWER
POWER PLANTS
RENEWABLE ENERGY SOURCES
SHAFTS
TORSION
TURBOGENERATORS