US 12,272,948 B1
Control of a renewable energy power plant to detect a control fault
Mads Rajczyk Skjelmose, Risskov (DK); Ines Pereira Barreira, Aarhus C (DK); and Kouroush Nayebi, Ikast (DK)
Assigned to VESTAS WIND SYSTEMS A/S, Aarhus N (DK)
Appl. No. 18/862,937
Filed by VESTAS WIND SYSTEMS A/S, Aarhus N (DK)
PCT Filed May 3, 2023, PCT No. PCT/DK2023/050108
§ 371(c)(1), (2) Date Nov. 4, 2024,
PCT Pub. No. WO2023/213368, PCT Pub. Date Nov. 9, 2023.
Claims priority of application No. PA202270234 (DK), filed on May 3, 2022.
Int. Cl. H02J 3/00 (2006.01); F03D 17/00 (2016.01); G01R 21/00 (2006.01); G08B 21/18 (2006.01); H02J 3/24 (2006.01); H02J 3/38 (2006.01)
CPC H02J 3/001 (2020.01) [F03D 17/014 (2023.08); G01R 21/00 (2013.01); G08B 21/187 (2013.01); H02J 3/24 (2013.01); H02J 3/38 (2013.01); F05B 2260/80 (2013.01); H02J 2300/28 (2020.01)] 15 Claims
OG exemplary drawing
 
1. A method of operating a renewable energy power plant comprising one or more renewable energy generators, the method comprising:
receiving a measurement signal indicative of a measured power characteristic of the renewable energy power plant at a point of connection to a power network;
controlling the renewable energy power plant according to a normal mode of operation to provide power by determining and dispatching power set points, the power set points being determined by:
acquiring samples of the measurement signal at a sample rate; and
determining the power set points based on the sampled measurements and a target level for the measured power characteristic; and
monitoring the measurement signal to detect an undersampled oscillation of the measured power characteristic in the sampled measurements, and thereby detecting a control fault; and
when the control fault is detected, controlling the renewable energy power plant according to a fault mode of operation.