Methods for controlling a wind farm

US12398696B2 · kind B2 · utility

Assignee

• GE Vernova Renovables Espana, S.L. · ES

Inventors

• James Gregory Rotbert · Melrose, US
• Patrick Hammel Hart · Malta, US
• Charles Joseph Kosuth · Albany, US
• Alina Fatima Moosvi · Bolinas, US
• Steven Wade Sutherland · Roanoke, US
• Vaidhya Nath Venkitanarayanan · Schenectady, US
• Leonardo Cesar Kammer · Niskayuna, US
• Enno Ubben · Steinfurt, DE
• Alev Akbulut · Reine, DE

Key dates

• Filing date: Mar 11, 2020
• Grant date: Aug 26, 2025
• Expiry date: Mar 31, 2041

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F03D7/048
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A system and method are provided for controlling a wind farm during low wind speeds. Accordingly, the farm controller designates at least one of the plurality of wind turbines of the wind farm as a designated turbine. The designated turbine is operating in a full auxiliary mode when the speed of the wind acting on the wind farm is below a wind speed threshold. The remaining wind turbines are operated in a reduced auxiliary mode. The reduced auxiliary mode includes the disabling of at least one of pitching and yawing of the remaining wind turbines. When a power output for the designated wind turbine exceeds a power threshold, the farm controller directs at least one group of the remaining wind turbines to transition from the reduced auxiliary mode to the full auxiliary mode. During certain grid conditions, the transition between auxiliary modes may be delayed.