US 12,132,310 B2
Active power control in renewable power plants for grid stabilisation
Manas Patankar, Glen Huntly (AU); Hugh McKenzie, Melbourne (AU); Mu Wei, Solbjerg (DK); and Jacob Quan Kidmose, Risskov (DK)
Assigned to VESTAS WIND SYSTEMS A/S, Aarhus N (DK)
Appl. No. 17/779,410
Filed by VESTAS WIND SYSTEMS A/S, Aarhus N. (DK)
PCT Filed Nov. 25, 2020, PCT No. PCT/DK2020/050332
§ 371(c)(1), (2) Date May 24, 2022,
PCT Pub. No. WO2021/104596, PCT Pub. Date Jun. 3, 2021.
Claims priority of application No. PA 2019 70722 (DK), filed on Nov. 25, 2019.
Prior Publication US 2023/0006443 A1, Jan. 5, 2023
Int. Cl. H02J 3/00 (2006.01); H02J 3/32 (2006.01); H02J 3/38 (2006.01)
CPC H02J 3/004 (2020.01) [H02J 3/32 (2013.01); H02J 3/381 (2013.01); H02J 2203/10 (2020.01); H02J 2300/28 (2020.01)] 19 Claims
OG exemplary drawing
 
1. A method for controlling a renewable power plant connected to a power network to reduce deviation of a measured frequency of the power network from a target frequency, the method comprising:
determining a forecasted power gradient over a forecast interval defined between a first time point and a second time point; and
at a third time point during the forecast interval, controlling the power plant to output active power according to a minimum active power level if the measured frequency at the third time point is below the target frequency, controlling the power plant to output active power according to a maximum active power level if the measured frequency at the third time point is above the target frequency, wherein:
the maximum and minimum active power levels are based on the forecasted power gradient.