Hinrichsen, E. N. <br/><br/>
Mod-2 wind turbine farm stability study /  
E. N. Hinrichsen and P. J. Nolan 
 - Cleveland :   National Aeronautics and Space Administration,   1980 Washington :   United States Department of Energy,   1980 
 - 164 p. :   figuras 
 - DOE/NASA .
<br/><br/> Informe/número de patente NASA CR-165156  DOE/NASA/0134-1 
<br/><br/>The dynamics of single and multiple 2.5 ME, Boeing MOD-2 wind turbine generators (WTGs) connected to utility power systems were investigated. The analysis was based on digital simulation. Both time response and frequency response methods were used. The dynamics of this type of WTG are characterized by two torsional modes, a low frequency 'shaft' mode below 1 Hz and an 'electrical' mode at 3-5 Hz. High turbine inertia and low torsional stiffness between turbine and generator are inherent features. Turbine control is based on electrical power, not turbine speed as in conventional utility turbine generators. Multi-machine dynamics differ very little from single machine dynamics. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ENERGIA EOLICA<br/>TURBINAS EOLICAS<br/>PRODUCCION DE ENERGIA<br/>CONVERSION DE ENERGIA<br/>AEROGENERADORES<br/>ESTABILIDAD
<br/><br/><label>Universal Decimal Class. No.: </label>621.548