Siemens Gamesa Renewable Energy A/s

Tommy Hastrup Knudsen

Peder Bay Enevoldsen

Gustav Hoegh

Thomas Esbensen

Johannes Gerhardes Wardjan Alberts

Eduardo Raymaska Wiputra

Søren Forbech Elmose

A method of controlling a pitching system of a rotating rotor blade of a wind turbine includes: controlling the pitching system such that unintended pitching due to gravity is reduced.

Compensating gravity cycles of a pitching system

A method of controlling a wind turbine, wherein a minimum required hydraulic pressure represents a hydraulic pressure of at least one accumulator of the wind turbine which is required to pitch at least one blade of the wind turbine which is associated with the accumulator into a stop position of the wind turbine, and wherein a pitch angle represents a pitch angle of a normal of the at least one blade of the wind turbine relative to an incoming wind direction. The method includes (a) determining a minimum requirement function of the minimum required hydraulic pressure dependent on the pitch angle, (b) detecting a current hydraulic pressure in the at least one accumulator at a current pitch angle of the at least one blade, and (c) controlling the wind turbine such that the current hydraulic pressure is above the minimum required hydraulic pressure at the current pitch angle.

Method of controlling a wind turbine and controller for a wind turbine

Growing community of inventors

Karup J, Denmark

Tommy Hastrup Knudsen