In contrast, when the wind speed V is lower than the cut in {HEAD ~ wind speed Vcut} — in , {TAIL ~ the wind turbine generator} 1 switches the operation to the idling mode  
In contrast , when the wind speed V is lower than the cut in { HEAD ~ wind speed Vcut } — in , { TAIL ~ the wind turbine generator } 1 switches the operation to the idling mode
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH