US 12,155,220 B2
Method for improved power ramping in a hybrid power plant
Mads Rajczyk Skjelmose, Risskov (DK); Henrik Møller, Egå (DK); and Kouroush Nayebi, Ikast (DK)
Assigned to VESTAS WIND SYSTEMS A/S, Aarhus N (DK)
Appl. No. 17/914,704
Filed by VESTAS WIND SYSTEMS A/S, Aarhus N. (DK)
PCT Filed Mar. 5, 2021, PCT No. PCT/DK2021/050068
§ 371(c)(1), (2) Date Sep. 26, 2022,
PCT Pub. No. WO2021/190718, PCT Pub. Date Sep. 30, 2021.
Claims priority of application No. PA 2020 70190 (DK), filed on Mar. 26, 2020.
Prior Publication US 2023/0411966 A1, Dec. 21, 2023
Int. Cl. H02J 3/46 (2006.01); H02J 3/38 (2006.01)
CPC H02J 3/46 (2013.01) [H02J 3/381 (2013.01); H02J 2300/28 (2020.01)] 17 Claims
OG exemplary drawing
 
1. A method for providing power ramp rate control of a hybrid power plant, the hybrid power plant being connected to an electrical grid, the hybrid power plant comprising a plurality of energy assets comprising:
a plurality of first energy assets, wherein the plurality of first energy assets comprises a wind turbine generator;
a second energy asset comprising a solar power unit; and
a third energy asset comprising an energy storage unit,
wherein the hybrid power plant further comprises a power plant controller arranged to communicate with said plurality of energy assets, the power plant controller being arranged to receive a power reference defining a power to be delivered to the electrical grid and calculating therefrom, and dispatching, a power setpoint to each energy asset, each energy asset having an individual ramp rate which adds to a power ramp rate of the hybrid power plant, wherein:
each energy asset further has a ramp rate capability defined as a highest possible ramp rate at a given time; and
the power plant controller is arranged for:
receiving from each energy asset the corresponding ramp rate capability; and
determining the power setpoint for the third energy asset based on the ramp rate capability of the plurality of first energy assets and the ramp rate capability of the second energy asset.