The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 23, 2021
Filed:
Nov. 20, 2018
Vestas Wind Systems A/s, Aarhus N, DK;
Manoj Gupta, Singapore, SG;
Ravi Kumar, Melbourne, AU;
Janakiraman Sivasankaran, Singapore, SG;
Thomas Schmidt Grau, Singapore, SG;
Martin Ansbjerg Kjær, Harlev J, DK;
Kouroush Nayebi, Ikast, DK;
John Godsk Nielsen, Hornslet, DK;
Jesper Sandberg Thomsen, Hadsten, DK;
VESTAS WIND SYSTEMS A/S, Aarhus N, DK;
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.