公开(公告)号：US20180135598A1

公开(公告)日：2018-05-17

申请号：US15834208

申请日：2017-12-07

申请人： VESTAS WIND SYSTEMS A/S

发明人： Paw ROSENVARD ,  Michele LUCENTE

IPC分类号： F03D7/04 ,  F03D17/00 ,  F03D7/02

CPC分类号： F03D7/04 ,  F03D7/0204 ,  F03D7/0224 ,  F03D17/00 ,  F05B2270/331 ,  F05B2270/335 ,  F05B2270/602 ,  Y02E10/723

摘要： A rotational positioning system in a wind turbine is provided that comprises a driven part, a plurality of positioning drives coupled to the driven part, a plurality of sensors each arranged to sense a load parameter indicative of the load of the respective positioning drive, and a load controller connected to the plurality of sensors. The load controller is arranged to determine a load of a respective positioning drive based on the sensed load parameter, to compare said load with an expected load value, and to output a signal indicative of a failure of the respective positioning drive in response to the load being smaller than the expected load value.