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1. 发明公开

US20230296084A1 METHOD FOR IDENTIFYING A BLADE MALPOSITION OF A ROTOR BLADE OF A WIND POWER INSTALLATION 审中-公开
公开(公告)号：US20230296084A1
公开(公告)日：2023-09-21
申请号：US18186054
申请日：2023-03-17
申请人： Wobben Properties GmbH
发明人： Johannes Frommann , Enno von Aswege , Stephan Vollack
IPC分类号： F03D17/00 , F03D1/06
CPC分类号： F03D17/00 , F03D1/06 , F05B2260/83 , F05B2270/328
摘要： Provided is a method for identifying a blade malposition of a rotor blade of a wind power installation having one rotor and at least three rotor blades which in terms of the blade angles thereof are individually adjustable. For each rotor blade an actual angle is detected as the actual value of the blade angle; and the blade malposition is identified as a function of a blade angle deviation of the rotor blade and a rotational progress of the rotor. The blade angle deviation describes a deviation of the actual angle from a reference angle, and the rotational progress is representative of an angle about which the rotor has rotated onward after a start criterion. Blade malpositions in rotor blades which in terms of the blade angles thereof are individually adjustable are identified rapidly and reliably.

2. 发明授权

US11994104B2 Individual blade adjustment in a wind power installation 有权
公开(公告)号：US11994104B2
公开(公告)日：2024-05-28
申请号：US18172764
申请日：2023-02-22
申请人： Wobben Properties GmbH
发明人： Enno von Aswege
IPC分类号： F03D7/02 , F03D7/04
CPC分类号： F03D7/024 , F03D7/0224 , F03D7/044 , F05B2200/11 , F05B2200/13 , F05B2200/261 , F05B2200/262 , F05B2220/706 , F05B2240/221 , F05B2260/74 , F05B2270/706
摘要： A method for controlling a wind power installation, wherein the wind power installation has a rotor with a plurality of rotor blades, the rotor blades are adjustable in their blade angle, each rotor blade is activatable individually, for the individual activation, in each case a total adjustment rate Rof which indicates an intended speed of change of the respective blade angle is predetermined, a collective blade angle identical for all of the rotor blades is provided, a collective adjustment rate identical for all of the rotor blades describes an intended speed of change of the collective blade angle, an individual offset angle which indicates a value by which the blade angle is intended to deviate from the collective blade angle is predetermined for each rotor blade, an individual feed forward control adjustment rate which indicates an adjustment rate which is provided for reaching the offset angle is determined for each rotor blade from the individual offset angle, an individual offset deviation is determined for each rotor blade depending on a comparison of the individual offset angle and a detected blade angle of the rotor blade, and the total adjustment rate of each rotor blade is determined depending on the collective blade angle and/or the collective adjustment rate, the individual feed forward control adjustment rate, and the individual offset deviation.

3. 发明授权

US11952980B2 Method for controlling a wind power installation 有权
公开(公告)号：US11952980B2
公开(公告)日：2024-04-09
申请号：US17579389
申请日：2022-01-19
申请人： Wobben Properties GmbH
发明人： Ulf Schaper , Enno von Aswege , Paul Gerke Funcke
IPC分类号： F03D7/02 , F03D7/04
CPC分类号： F03D7/0276 , F03D7/0224 , F03D7/028 , F03D7/044 , F03D7/047 , F05B2270/1011 , F05B2270/1012 , F05B2270/1021 , F05B2270/1033 , F05B2270/32 , F05B2270/327 , F05B2270/328 , F05B2270/335 , F05B2270/706
摘要： A method for controlling a wind power installation having a rotor operated with variable speed and having rotor blades that are adjustable in their blade angle. The installation is controlled in a partial-load range by an open-loop operating-characteristic control, which uses an operating characteristic. The operating characteristic presets a relationship between the rotational speed and a generator state variable to be set that is a generator power or torque. A value of the generator state variable preset by the operating characteristic is set in dependence on a detected speed. The installation is controlled in a full-load range by a closed-loop pitch control, in which the rotational speed is controlled to a speed setpoint value by adjusting the blade angles. In a presettable range of the partial-load range and/or in a transitional range from the partial-load range to the full-load range, the installation is controlled by a speed-power control.

4. 发明申请

US20220397092A1 METHOD FOR CONTROLLING THE ROTOR SPEED OF A WIND TURBINE 有权
公开(公告)号：US20220397092A1
公开(公告)日：2022-12-15
申请号：US17835615
申请日：2022-06-08
申请人： Wobben Properties GmbH
发明人： Johannes Frommann , Enno von Aswege , Ulf Schaper , Gnanasekaran Rengaraj
IPC分类号： F03D7/02
摘要： Method for controlling a rotor speed of a rotor of a wind turbine at rated or curtailed operation conditions the rotor being an aerodynamic rotor having one or a plurality of rotor blades, and the wind turbine further having a tower and a generator wherein a pitch control provides a pitch angle set value depending on an actual rotor speed for setting a pitch angle of the rotor blades, a main control provides a main power or torque set value for controlling the power or torque of the generator, and an additional control provides an additional power or torque set value depending on the actual rotor speed , wherein the additional power or torque set value is provided as an offset value and is added to the main power or torque set value respectively, wherein the additional power or torque set value is calculated depending on a control deviation of the rotor speed, and optionally, in combination with the additional control, or instead of it, a maximum power control provides a maximum power value as a varying value for limiting an output power of the generator and the maximum power value is calculated depending on a predetermined power limit value, and depending on a predetermined reference duration, in order to provide for the reference duration an average power reaching or at least not exceeding the predetermined power limit value.

5. 发明公开

US20240218854A1 METHOD FOR CONTROLLING A WIND POWER INSTALLATION 审中-公开
公开(公告)号：US20240218854A1
公开(公告)日：2024-07-04
申请号：US18399070
申请日：2023-12-28
申请人： Wobben Properties GmbH
发明人： Enno von Aswege , Ulf Schaper , Henry Mühlenbrock
IPC分类号： F03D7/02 , F03D1/00 , F03D7/04
CPC分类号： F03D7/0224 , F03D1/00 , F03D7/0276 , F03D7/028 , F03D7/042 , F05B2220/30 , F05B2270/101 , F05B2270/1032
摘要： A method for control of a wind power installation which is connected to an electrical supply network and which has a rotor with rotor blades which are adjustable in terms of their blade angle, is able to be operated at a variable speed and is prepared for generating an installation power from wind, wherein a blade angle control is provided for adjusting the blade angles, a closed-loop speed control is provided for closed-loop control of the speed, a closed-loop power control is provided for limiting the installation power, and the wind power installation is able to be operated at an operating point which can be specified, wherein the operating point is characterized at least by the speed and the installation power comprises operating the wind power installation at a first operating point with a first blade angle, checking for a curtailment request, where a reduction in the speed and/or installation power is requested, and if there is a curtailment request, determining a new operating point as the target operating point depending on the curtailment request, wherein the target operating point is characterized by a target speed and a target installation power, and determining a setpoint blade angle as the target blade angle for the target operating point, wherein in order to change the blade angle to the target blade angle, a feedforward control blade angle, or a feedforward adjustment rate describing an adjustment rate of the blade angle, is specified via a feedforward control blade angle control process, wherein the feedforward control blade angle control process gives the feedforward control blade angle or the feedforward control adjustment rate directly to the blade angle control for implementation.

6. 发明授权

US11879430B2 Method for detecting a sensor malfunction of a load sensor of a wind power installation 有权
公开(公告)号：US11879430B2
公开(公告)日：2024-01-23
申请号：US18312412
申请日：2023-05-04
申请人： Wobben Properties GmbH
发明人： Martin Flögel , Enno von Aswege
IPC分类号： F03D17/00 , F03D80/50
CPC分类号： F03D17/00 , F03D80/50 , F05B2260/80 , F05B2260/83 , F05B2270/32 , F05B2270/331 , F05B2270/808
摘要： A method for detecting a sensor malfunction of a load sensor of a wind power installation having a rotor and at least one rotor blade, wherein the load sensor is configured to detect a loading variable of one of the rotor blades, and the sensor malfunction involves the functional freezing of a sensor signal from the load sensor, such that it remains temporally constant, wherein at least one loading variable of the rotor blade is estimated and, in the event that the sensor signal is temporally constant, a comparability test is executed wherein, according to the at least one estimated loading variable, a check is executed as to whether a non-constant sensor signal is to be anticipated, and a sensor malfunction is identified by reference to the comparability test.

7. 发明申请

US20230010892A1 METHOD FOR IDENTIFYING AN EXTREME LOAD ON A WIND POWER INSTALLATION 有权
公开(公告)号：US20230010892A1
公开(公告)日：2023-01-12
申请号：US17860028
申请日：2022-07-07
申请人： Wobben Properties GmbH
发明人： Stephan Vollack , Enno von Aswege
IPC分类号： F03D7/02
摘要： The invention relates to a method for identifying an asymmetrical extreme load which is caused by a gust of wind and acts on a wind power installation, wherein the wind power installation has a rotor having at least three rotor blades; the rotor blades are adjustable in terms of the blade angle thereof; and the rotor by way of the rotor blades thereof sweeps a rotor field; and the method comprises continuous detecting of a blade load for each rotor blade; ascertaining for at least one sector of the rotor field at least one temporal sector load profile from blade loads detected of different rotor blades with the same azimuth position, said sector load profile describing a temporal profile of a load on the rotor blades in the sector and containing a profile extrapolated for a future temporal period, wherein the blade loads are detected or taken into account at successive detection time points which are spaced apart by a partial period in which the rotor rotates further by one rotor blade, so that successive blade loads are detected or taken into account for the respective sector; and checking in terms of expecting an extreme load as a function of the at least one sector load profile.

8. 发明公开

US20240271599A1 METHOD FOR AVOIDING MECHANICAL VIBRATIONS OF A WIND POWER INSTALLATION 审中-公开
公开(公告)号：US20240271599A1
公开(公告)日：2024-08-15
申请号：US18436960
申请日：2024-02-08
申请人： Wobben Properties GmbH
发明人： Martin Flögel , Enno von Aswege
IPC分类号： F03D7/02 , F03D17/00
CPC分类号： F03D7/0298 , F03D17/015 , F05B2260/964 , F05B2270/328 , F05B2270/334
摘要： The invention relates to a method for controlling a wind power installation, wherein the wind power installation has a tower, a generator and a rotor with rotor blades whose blade angle can be adjusted, an operating point is characterized by an installation power and a rotor speed, to change or maintain the operating point, at least one actuator is controlled in each case via a control variable, and controlling the actuator affects a vibration excitation of at least one component vibration of a vibratory component of the wind power installation, comprising the steps of: determining a preliminary control signal for the control variable, changing the preliminary control signal into a modified control signal in order to reduce the vibration excitation, wherein the preliminary control signal is changed into the modified control signal in such a way that at least one frequency component from the preliminary control signal with a frequency range around a natural frequency of the vibratory component is reduced, and/or at least one frequency component from a resulting excitation signal, which is expected from the preliminary control signal and excites the component vibration, with a frequency range around the natural frequency of the vibratory component is reduced, and controlling the actuator on the basis of the modified control signal.

9. 发明公开

US20240175423A1 METHOD FOR CONTROLLING A WIND POWER INSTALLATION 审中-公开
公开(公告)号：US20240175423A1
公开(公告)日：2024-05-30
申请号：US18520367
申请日：2023-11-27
申请人： Wobben Properties GmbH
发明人： Enno von Aswege , Stephan Vollack , Henry Mühlenbrock
IPC分类号： F03D7/02
CPC分类号： F03D7/0276 , F05B2260/821
摘要： Method for controlling a wind power installation (100) which has rotor blades (108) whose blade angle is adjustable and which can be operated at a variable speed using speed control, wherein the speed control is prepared to control the speed to a variable target speed value, comprising the steps of evaluating a test criterion for predicting an emerging overspeed, predicting an overspeed (nU) on the basis of the at least one test criterion, and changing the speed control if an overspeed (nU) has been predicted. Proposed are techniques that avoid an excessive increase in the rotor speed even in the event of strong wind speed increases. In particular, proposed are techniques that avoid reaching an overspeed that leads to shutdown, but without increasing the operating loads too much.

10. 发明申请

US20220372953A1 METHOD FOR CONTROLLING A WIND POWER INSTALLATION, WIND POWER INSTALLATION, AND WIND FARM 有权
公开(公告)号：US20220372953A1
公开(公告)日：2022-11-24
申请号：US17747619
申请日：2022-05-18
申请人： Wobben Properties GmbH
发明人： Enno von Aswege
IPC分类号： F03D7/02 , F03D7/04
摘要： Provided is a method for controlling a wind power installation, an associated closed-loop controller, an associated installation and a wind farm. The installation has an aerodynamic rotor which is operated at a variable rotating speed and has rotor blades that have adjustable blade angles. The installation in at least one operating range is closed-loop controlled by a closed-loop rotating speed control in which the rotating speed by adjusting a rotor status variable of the rotor blades is closed-loop controlled to a rotating speed target value, referred to as the target rotating speed. The closed-loop rotating speed control for adjusting the rotor status variable includes the use of a reserve value. In the event that the installation is not yet operating at a target output or a target moment, the reserve is obtained from a comparison of the target output or target moment and a momentary output or a momentary moment.

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