A method 300 of controlling a wind turbine generator is disclosed. The method comprises operating 302 the wind turbine in accordance with a power curve having a knee region and monitoring 304 a temperature of at least one thermal hotspot of the wind turbine generator. The method further comprises initiating 306 a power boost to temporarily increase an active power generated by the wind turbine generator above a rated power when the wind turbine generator enters the knee region of the power curve and controlling 312 at least one of a magnitude and a duration of the power boost in dependence on the temperature of the at least one thermal hotspot of the wind turbine generator.

A system and method are provided for controlling a wind turbine. Accordingly, a controller of the wind turbine detects an oscillation in the power output of the wind turbine during a recovery from a transient event. In response to detecting the oscillation, a portion of the power output during a peak phase of the oscillation is stored in an energy storage device. A portion of the stored power is then discharged during a valley phase of the oscillation in order to reduce an amplitude of the oscillation of the power output that is delivered to the power grid.

A smart wave energy converter may include a reconfigurable floater; a reference wave frequency measurement module; a central control module; a submerged buoyancy element; one or more power take-off devices; and an anchoring system. The reconfigurable floater may be connected to the submerged buoyancy element by the one or more power take-off devices. The submerged buoyance element may be connected to the anchoring system. The reconfigurable floater may include one or more mechanisms to alter a natural heave frequency of the reconfigurable floater. The reference wave frequency measurement module may measure a frequency of a wave state and transmit a measured frequency to the central control module. The central control module may adjust a property of the one or more mechanisms to match the natural heave frequency of the reconfigurable floater to the measured frequency.

A method for harnessing wave energy includes providing a vehicle to a body of water, the vehicle. The method includes submerging the vehicle to a depth in the body of water. The method includes operating the motor-generator of the vehicle in the first quadrant of the motor-generator. The method includes detecting a phase of a wave in the body of water based information from the processor of the detected phase. The method includes orienting the vehicle to lag the phase of the wave based on the detected phase of the wave. The method includes synchronizing an inertial acceleration of the vehicle to movement of the wave. The method includes switching the motor-generator to the second quadrant for generation mode to convert energy from the movement of the wave to electrical energy. The method includes storing the energy from the wave in the rechargeable battery source.

A method 300 of controlling a wind turbine generator is disclosed. The method comprises operating 302 the wind turbine in accordance with a power curve having a knee region and monitoring 304 a temperature of at least one thermal hotspot of the wind turbine generator. The method further comprises initiating 306 a power boost to temporarily increase an active power generated by the wind turbine generator above a rated power when the wind turbine generator enters the knee region of the power curve and controlling 312 at least one of a magnitude and a duration of the power boost in dependence on the temperature of the at least one thermal hotspot of the wind turbine generator.

Provided is a method, computing system, and computer program product for reducing floating wind turbine loads induced by ocean waves by adjusting a blade pitch angle of at least one rotor blade of a floating wind turbine to minimize a moment imbalance at a platform top of the floating wind turbine caused by ocean wave activity.

A detuner system for a wind turbine includes a drive train component having a natural frequency. The drive train component is configured to rotate about an axis of rotation at a range of different speeds. The detuner system includes a controller for selectively interacting with the drive train component and cause a step change in the natural frequency of the drive train component at first threshold of the rotational speed range, and cause a step change in the natural frequency of the drive train component at a second threshold of the rotational speed range different to the first threshold.

A condition monitoring device for a wind turbine power generating apparatus provided with an auxiliary motor power supply system including a power-supply-side line connected to a power supply and a plurality of auxiliary-motor-side lines diverging from the power-supply-side line and connected to a plurality of auxiliary motors, respectively, comprises: a current measurement device for measuring a current flowing through the power-supply-side line; and a control device for controlling the plurality of auxiliary motors. The control device is configured to, when a generator of the wind turbine power generating apparatus is in a standby state where power generation is stopped at a low wind speed, execute a single sequential operation mode in which each of the plurality of auxiliary motors is singly and sequentially operated. The current measurement device is configured to measure a current flowing through the power-supply-side line during execution of the single sequential operation mode by the control device.

The present invention relates to a damper unit for damping oscillations of a tower structure when secured thereto, the damper unit comprising a damper unit structure adapted for attachment to the tower structure, a pendulum structure, a suspension arrangement for suspending the pendulum structure from the damper unit structure such that the pendulum structure is allowed to displace from a neutral position for the pendulum structure, the suspension arrangement comprising one or more wires for suspending the pendulum structure, a sensor adapted for measuring oscillations of the tower structure, and tuning means configured for adjusting the natural frequency of the suspended pendulum structure in response to measured oscillations of the tower structure. The present invention further relates to an associated method.

It is described a method of controlling an offshore wind turbine (50) installed on a floating platform (12) and having at least one rotor blade (6) comprising at least one adaptable flow regulating device (9) configured to adapt/modulate an air flow exposed profile, the method comprising: receiving a load related signal (3, 14) indicative of a load due to a movement of the floating platform (12); and controlling the adaptable flow regulating device (9) based on the load related signal (3, 14).