公开(公告)号：US10958071B2

公开(公告)日：2021-03-23

申请号：US16956923

申请日：2018-11-20

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Manoj Gupta ,  Ravi Kumar ,  Janakiraman Sivasankaran ,  Thomas Schmidt Grau ,  Martin Ansbjerg Kjær ,  Kouroush Nayebi ,  John Godsk Nielsen ,  Jesper Sandberg Thomsen

IPC: H02J3/00 ,  H02J3/38 ,  H02J3/24 ,  H02J3/12

Abstract: A method for operating a renewable energy power plant comprising a plurality of renewable energy generators. The method comprises: identifying a predetermined condition of the renewable energy power plant, of the grid, or of the connection between the renewable energy power plant and the grid, the predetermined condition indicating a weak grid interconnection between the renewable energy power plant and the grid; and controlling each renewable energy generator in an adaptive active power mode in response to recovery of the grid from a voltage deviation. The adaptive active power mode comprises: determining a thermal capacity of a chopper resistor of the renewable energy generator; calculating, based upon the determined thermal capacity, a limit level of rate of change of active power output that may be implemented by the renewable energy generator; and operating the renewable energy generator to output active power at the calculated rate of change limit level.