A stabilization system for a power generation system including non-conventional energy source coupled to a utility grid, the stabilization system comprising: a deadband limiter configured for detecting when a signal of the power generation system is outside of a signal range; a power shaper configured for providing a transient power generation adjustment signal in response to the signal being outside of the signal range; and a limit controller to configured to prevent the adjustment signal from causing the energy source of the power generation system to operate outside of at least one operating constraint.

Power generation stabilization control systems and methods

A control system is provided. The control system comprises an electronic processor configured to control operation of at least one wind turbine. The control system further comprises at least one weather radar unit positioned proximate to the at least one wind turbine and configured to generate weather data. The electronic processor is configured to control the operation of the at least one wind turbine based on the weather data generated by the at least one weather radar unit.

Wind prediction for wind farms through the use of weather radar

The invention relates to a method for the operation of a wind power plant (11) with a rotor (10) and a rotating apparatus (20, 22, 24) connected with the rotor (10), wherein a rotor speed (nR) and a rotating apparatus speed (n) are interrelated via a specifiable transmission ratio, wherein the rotating apparatus speed (n) is determined, and wherein a rotational speed measurement value (rpmi) is captured for the determination of the rotating apparatus speed (n). The method according to the invention is characterized in that the rotational speed measurement value (rpmi) is corrected with an intermittently variable correction value (rpmi,c) so that the determined rotating apparatus speed (rpmi,f) results, and wherein the determined rotating apparatus speed (rpmi,f) is fed as the actual value into a regulation apparatus (36) of the wind power plant (11).

Rotational speed determination

The present disclosure is related to a method for operating a wind turbine (100), the wind turbine comprising a wind rotor (160) and a generator (170) connected to the wind rotor, wherein the generator is adapted to be connected to a grid, wherein the method comprises: generating a signal for at least one of a run-up event or starting event of the wind turbine based on a predicted efficiency of at least one component (135, 165, 160, 175, 170, 180, 190, 200, 220) of the wind turbine. Further, the present disclosure is related to a wind turbine (100) comprising a wind rotor (160), wherein the wind rotor is mechanically connected to a generator (170) for transmitting the rotational power of the wind rotor to the rotor of the generator, wherein the output current of the generator is adapted to be selectively connected to a grid (210) by a circuit breaker (190), the wind turbine further comprising a control device (220) adapted to close the circuit breaker, wherein the control device is adapted to generate a signal for at least one of a run-up event or starting event of the wind turbine based on a predicted efficiency of at least one component (135, 165, 160, 175, 170, 180, 190, 200, 220) of the wind turbine.

Wind turbine and method for operating a wind turbine

A method of controlling a wind turbine that includes at least one rotor shaft and at least one blade operatively coupled to the rotor shaft includes measuring a first wind turbine operational condition that is representative of a blade deflection value and generating a first operational condition signal based on that first wind turbine operational condition. The wind turbine also includes a drive train including at least one rotor shaft and an electric generator. The method also includes measuring at least one second wind turbine operational condition and generating at least one second operational condition signal. The method further includes changing the blade deflection value by changing the second operational condition.

Wind turbine farm and method of controlling at least one wind turbine

The invention relates to a wind turbine comprising a rotor including one or more rotor blades, a pitch system for controlling the pitch angle of said one or more rotor blades, said pitch system comprises at least one pitch actuator, a pitch controller for generating pitch actuator control signals and sensor elements for establishing values of pitch performance parameters, and a compensation controller to compensate for disparities between said pitch actuator control signals and said values of pitch performance parameters, according to a control algorithm. The the compensation controller is arranged to adjust parameters of the control algorithm of said compensation controller in dependency of said disparities. Furthermore the invention relates to a method for compensating for disparities in a wind turbine rotor blade pitch system and use of a method.

A wind turbine, a method for compensating for disparities in a wind turbine rotor blade pitch system and use of a method.

Methods and systems for controlling a wind turbine in a manner that takes into account the degree of loading of and damage to one or more components of the turbine are provided. An operational load on a wind turbine part is determined, and is used to compute a damage signal. The damage signal is indicative of the potential damage to the component or to the turbine as a whole that will result if action is not taken to reduce or mitigate the determined load. When the damage signal exceeds a pre-determined threshold, load-reducing wind turbine control means are activated to obviate the estimated damage.

Methods and apparatus for controlling wind turbines

The invention relates to a controller configured to determine one or more future values of blade control references and/or a generator control references for a wind turbine generator. The first of the future values of the control references are used for control purposes. The future control references are determined from a physical model of a system of the wind turbine generator by solving an optimization problem which includes at least one cost function and at least one constraint.

Model based controller for a wind turbine generator

A control method and apparatus for safe mode operation at high yaw error is described. A yaw error detection block (2) detects a yaw error. A load-reducing controller (4), for mitigating one or more structural loads associated with the yaw error, operates when a yaw error is detected, to engage a safe mode in which it operates to prevent the pitch angle applied to the individual wind turbine blades from falling below a minimum non-zero value.

Safe mode operation at high yaw error

The invention relates to a method for determining dynamic parameters associated with damping properties of a wind turbine. The method involves active excitation of tower oscillations by adjusting the pitch or rotor torque. After the active excitation, the parameters can be determined from the passive decay of the excited oscillations. Alternatively, the oscillations can be actively damped, so that the parameters can be determined from the active decay of the excited oscillations. The method for promoting oscillations may be triggered in response to different events or in response to predetermined times for determining the actual dynamic parameters.

Poul Brandt Christensen

Papers

A wind turbine, a method for compensating for disparities in a wind turbine rotor blade pitch system and use of a method.

Methods and apparatus for controlling wind turbines

Model based controller for a wind turbine generator

Safe mode operation at high yaw error

Active promotion of wind turbine tower oscillations