Increasing active power from a wind turbine

A control system for a wind turbine arranged to receive a boost command to request a power boost event, the wind turbine comprising a rotor connected to a generator configured to generate electrical power dependent on a power reference and the boost command, the control system comprising:

• a rotational speed controller arranged to control a speed of the generator, based on a speed error,
• wherein a dead band block within the rotational speed controller is arranged to impose, responsive to the boost command, a dead band with a dead zone value limit, wherein the dead band block is arranged to output:
• a zero signal when the speed error is within the dead zone value limit, and
• an error signal when the speed error is greater than the dead zone value limit, where the error signal is a function of the speed error and the dead zone value limit.

A non-transitory computer program product loadable into an internal memory of a processing device, the computer program product comprising software code portions for performing an operation for controlling a wind turbine, the wind turbine comprising:

• a rotor connected to a generator, a rotational speed controller configured to control a speed of the rotor in response to a generator speed reference, and a power controller to control an electrical power production, the operation comprising:
• receiving a boost command to request a power boost event, so to increase the electrical power production, and
• imposing a dead band with a dead zone value limit to the rotational speed controller, wherein the dead band imposes:
• a zero signal to be sent to the rotational speed controller when a speed error is within the dead zone value limit, and
• an error signal to be sent to the rotational speed controller when the speed error is greater than the dead zone value limit, the error signal being a function of the speed error and the dead zone value limit.