Patent ID: 11946452
Assignee: REGENTS OF THE UNIVERSITY OF MINNESOTA
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 0:
1. A method for controlling a wind turbine, the method comprising:
determining, with a control system, that an icing event has begun to affect the wind turbine;
based on a determination that the icing event has begun to affect the wind turbine, changing a phase of the wind turbine with the control system to an operational-icing phase, wherein changing the phase of the wind turbine to the operational-icing phase comprises:
determining a modified angle of attack of blades of the wind turbine based on a current wind speed, current power production of the wind turbine, and baseline power production data; and
modifying an angle of attack of the blades of the wind turbine to the modified angle of attack via changing a blade pitch angle, wherein the wind turbine continues to generate electrical power when the wind turbine is in the operational-icing phase; and

based on a determination that electrical power generation of the wind turbine is below a threshold, changing the phase of the wind turbine with the control system to a stopped-icing phase, wherein rotation of the blades of the wind turbine is halted when the wind turbine is in the stopped- icing phase.