摘要:
There is presented a wind turbine system, wherein the wind turbine system is comprising a support structure, a plurality of wind turbine modules mounted to the support structure wherein each of the plurality of wind turbine modules comprises a rotor, and wherein the wind turbine system further comprises a control system, wherein the control is arranged to execute a wind turbine system transition from a first system operational state of the wind turbine system to a second system operational state of the wind turbine system, and wherein the wind turbine system transition is performed by executing a plurality of wind turbine module transitions from a first module operational state of a wind turbine module to a second module operational state of the wind turbine module wherein the plurality of wind turbine module transitions are distributed in time with respect to each other.
摘要:
A method and a system for managing loads on a wind turbine are provided. The computer-implemented method is implemented using a processor coupled to a memory device. The method includes determining a first moment of a wind load acting about a first axis of a rotor of the wind turbine, determining a second moment of a wind load acting about a second axis of a rotor of the wind turbine, and determining a resultant moment of the first moment and the second moment. The method also includes generating an error signal indicating a difference between the resultant moment and a predetermined moment level threshold signal and generating, by the processor, a first activation signal over a range of the generated error signal between a first zero activation signal level and a first full activation signal level.
摘要:
A blade pitch system for a wind turbine comprising a motor coupled to a central reduction gearing, wherein a rotatable output of the central reduction gearing is fixed to a mobile link that in use is joined to the blade and allows rotation of the blade around its longitudinal axis and a static part of the central reduction gearing or the motor is fixed to a static link that in use is joined to a wind turbine hub, wherein the system further comprises one or more flexible couplings to couple the central reduction gearing or the motor and the static or the mobile link such that torque about a blade longitudinal axis is transmitted between the blade and the reduction gearing while substantially limiting the transmission of other loads.
摘要:
A wind power generator is provided with a drive unit, a clutch hydraulic source, and a clutch control portion. The drive unit has a hydraulic clutch mechanism configured to perform switching between transmission and non-transmission of rotary power from an output shaft to a pinion. The clutch hydraulic source supplies a hydraulic pressure to the clutch mechanism. The clutch control portion controls a hydraulic pressure supplied from the clutch hydraulic source to the clutch mechanism.
摘要:
A wind turbine power generating apparatus includes a wind turbine rotor including at least one blade; a pitch drive part for changing a pitch angle of the at least one blade; a generator configured to be driven by rotational energy of the wind turbine rotor; a circuit breaker for switching a connection state of the generator with respect to a utility grid; and a controller for controlling the wind turbine power generating apparatus. The controller includes a pitch control part configured to control the pitch drive part in a constant rotation-speed control mode for maintaining a rotation speed of the wind turbine rotor at a target rotation speed, before connection of the generator; a connection-condition determination part configured to determine whether a connection determination condition is satisfied; and a connection-command generation part configured to provide the circuit breaker with a connection command to connect the generator to the utility grid.
摘要:
The present invention relates to a method for operating a wind turbine having a rotor with rotor blades and an essentially horizontal rotation axis for generating electrical energy from wind energy. According to the invention, it is proposed for the wind turbine to be aligned such that the azimuth position of the wind turbine departs by an azimuth adjustment angle from an alignment into the wind, and/or that the blade angle of the rotor blades is adjusted in cyclic rotation such as to reduce alternating loads that are caused by a height profile of the wind.
摘要:
A wind turbine includes a rotor, a plurality of rotor blades coupled to the rotor, and a blade pitch control system coupled to each rotor blade. A computer-implemented method for controlling the wind turbine includes determining at least one pitch position for a first blade. The method also includes determining whether there is a malfunction of the blade pitch control system associated with the first blade. The method further includes predicting a rotor imbalance using a model of at least a portion of the wind turbine. The method also includes comparing the predicted rotor imbalance with a predetermined threshold value. The method further includes one of regulating the pitch position for the second blade such that the predicted rotor imbalance is restored to a value below the predetermined threshold and regulating a pitch position for a second blade such that the predicted rotor imbalance does not exceed the predetermined threshold.
摘要:
Systems and methods for controlling a wind turbine are disclosed. The method includes: measuring a loading condition acting on the wind turbine; determining a first scaler factor based on the measured loading condition; determining a correction parameter for the wind turbine, the correction parameter a function of at least two measured operating conditions and representative of a real-time operational state of the wind turbine; determining a second scaler factor based on the correction parameter; calculating an adjustment set point based on the first scaler factor and the second scaler factor; and, controlling the wind turbine based on the adjustment set point.
摘要:
When it is determined that a blade is rotating, a control device operates a braking device, and acquires a rotation angle (first rotation angle) from a rotation angle sensor. Then, the control device reverses a nacelle and acquires again a rotation angle (second rotation angle) from the rotation angle sensor. Then, the control device determines whether or not the difference between the first rotation angle and the second rotation angle is greater than a threshold value. When it is determined that the rotation angle difference is greater than the threshold value, the control device determines that a gear or a bearing of a gearbox is worn out.
摘要:
The present invention relates to a wind turbine assembly comprising a turbine having turbine blades, said turbine being arranged to generate a rotational energy as the turbine blades are engaged by a wind, characterized in that said wind turbine assembly further comprises an emergency brake that is operationally connected to the turbine blades for pitching the turbine blades towards a rest position by the rotational energy of the turbine, when the emergency brake is activated.