A generator of a wind turbine is at low power conditions operated as a motor by control of a frequency converter to feed electric power from an electric power transmission network to the generator for raising the speed of the wind rotor above a predetermined level for lubricating rotating parts of a drive train of the wind turbine.
申请公布号
EP2066902(A1)
申请公布日期
2009.06.10
申请号
EP20060799707
申请日期
2006.09.29
申请人
ABB RESEARCH LTD
发明人
GERTMAR, LARS;WRAEE, LEIF-ERIK;CHRISTENSEN, HANS, C.;MANTERE, JUHANI;KOLBY NIELSEN, ERIK