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公开(公告)号：WO2022083835A1
公开(公告)日：2022-04-28
申请号：PCT/DK2021/050308
申请日：2021-10-14
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： NIELSEN, Johnny
Abstract: There is provided methods (100, 200) and systems for controlling a multi-rotor wind turbine generator (1) having at least two rotor nacelle assemblies (3) mounted to a support arrangement by a common yaw control system (9) and each having a wind direction sensor (11) mounted thereto configured to measure a wind direction relative to forward direction of its rotor nacelle assembly (3). The methods (100, 200) comprise the steps of measuring, for each rotor nacelle assembly (3), wind power parameter data over a plurality of relative wind directions, determining, based on the measured data, an optimum relative wind direction, either based on the average of two directions at which 10 the parameter is maximum or on a combined data set, and controlling the yaw system (9) accordingly.
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公开(公告)号：WO2019120408A1
公开(公告)日：2019-06-27
申请号：PCT/DK2018/050345
申请日：2018-12-11
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： NIELSEN, Johnny , GRUNNET, Jacob Deleuran
CPC classification number: F03D80/40 , F03D17/00 , F05B2260/80 , F05B2270/32 , F05B2270/321 , F05B2270/80
Abstract: Embodiments herein describe a method and associated controller for a wind turbine. The method comprises determining one or more characteristics of a sensor signal received from a mechanical sensor of the wind turbine; determining, based on the one or more 5 characteristics of the sensor signal, an icing condition of the wind turbine; and controlling operation of one or more wind turbine systems based on the determined icing condition.
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公开(公告)号：WO2017108063A1
公开(公告)日：2017-06-29
申请号：PCT/DK2016/050462
申请日：2016-12-22
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： NIELSEN, Johnny
IPC: F03D7/02
CPC classification number: F03D7/0204 , F05B2270/321 , F05B2270/329 , F05B2270/802 , Y02E10/723
Abstract: The invention relates to a method of controlling a wind turbine comprising a wind direction sensor, a yawing system, and a control system for turning the wind turbine rotor relative to the wind. The method comprises firstly obtaining at time intervals a data set comprising a direction of the wind relative to the wind turbine as measured by the wind direction sensor and a wind power parameter determined as one of a power, a torque, or a blade load of the wind turbine. The data sets are sorted into a number of bins of different intervals of wind power parameter. Based on the obtained data sets is then over time and for each power bin determined a statistical representation of the wind power parameter as a function of the relative wind direction which is then used in estimating a wind direction offset corresponding to the relative wind direction where the wind power parameter attains a peak value. The relative wind direction of the wind turbine is then adjusted as a function of the set of wind direction offsets to yield more accurate wind direction data which can be used in the controlling of the turbine. The invention further relates to a control system for a wind turbine for performing a control method as mentioned above.
Abstract translation: 风力涡轮机的控制方法技术领域本发明涉及一种控制风力涡轮机的方法，该风力涡轮机包括风向传感器，偏航系统和用于使风力涡轮机转子相对于风转向的控制系统。 该方法包括首先以时间间隔获得数据集，该数据集包括由风向传感器测量的相对于风力涡轮机的风的方向和被确定为风力传感器的功率，转矩或叶片载荷之一的风力功率参数 风力涡轮机。 数据集被分类到不同风电参数区间的许多分箱。 然后基于所获得的数据集随时间推移，并且针对每个功率箱确定风力功率参数的统计表示，作为相对风向的函数，然后将其用于估计对应于相对风向的风向偏移，其中 风电参数达到峰值。 随后根据一组风向偏移调整风力涡轮机的相对风向，以产生可用于控制涡轮机的更精确的风向数据。 本发明还涉及用于执行如上所述的控制方法的风力涡轮机的控制系统。
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公开(公告)号：WO2017108062A1
公开(公告)日：2017-06-29
申请号：PCT/DK2016/050461
申请日：2016-12-22
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： NIELSEN, Johnny
IPC: F03D7/02
CPC classification number: F03D7/0204 , F05B2270/321 , F05B2270/802 , Y02E10/723
Abstract: The invention relates to a method of controlling a wind turbine comprising a wind direction sensor, a yawing system, pitchable wind turbine blades, and a control system for pitching the blades and for turning the wind turbine rotor relative to the wind. The method comprises firstly obtaining at time intervals a data set comprising a direction of the wind relative to the wind turbine as measured by the wind direction sensor and a pitch angle parameter representing a pitch angle of at least one of the wind turbine blades. Based on the obtained data sets is then over time determined a statistical representation of the pitch angle parameter as a function of the relative wind direction which is then used in estimating a wind direction offset corresponding to the relative wind direction where the pitch angle parameter attains a maximum. The relative wind direction of the wind turbine is then adjusted as a function of the wind direction offset. In this way, the control parameter depending on the wind direction can be determined with an improved accuracy. The invention further relates to a control system for a wind turbine for performing a control method as mentioned above.
Abstract translation: 风力涡轮机的控制方法技术领域本发明涉及一种控制风力涡轮机的方法，该风力涡轮机包括风向传感器，偏航系统，可俯仰风力涡轮机叶片以及用于俯仰叶片并用于相对转动风力涡轮机转子的控制系统 迎风。 该方法包括首先以时间间隔获得数据集，该数据集包括由风向传感器测量的相对于风力涡轮机的风的方向和表示至少一个风力涡轮机叶片的俯仰角的俯仰角参数。 然后基于所获得的数据集随时间确定作为相对风向的函数的俯仰角参数的统计表示，该相对风向随后用于估计对应于俯仰角参数达到的相对风向的风向偏移 最大。 风力涡轮机的相对风向随后根据风向偏移进行调整。 以这种方式，可以以提高的准确度来确定取决于风向的控制参数。 本发明还涉及用于执行如上所述的控制方法的风力涡轮机的控制系统。
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公开(公告)号：WO2022228630A1
公开(公告)日：2022-11-03
申请号：PCT/DK2022/050084
申请日：2022-04-26
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： KIIB, Kristian , NIELSEN, Johnny
Abstract: The invention relates to determining rotor speed of a wind turbine The invention involves receiving angular velocity sensor data indicative of an angular velocity of the wind turbine rotor hub, provided e.g. by a gyroscope, and receiving acceleration sensor data indicative of an acceleration of the rotor hub in at least one radial direction relative to an axis of rotation of the rotor hub. The invention involves determining first and second estimated rotational speeds of the rotor hub based on the respective angular velocity sensor data and acceleration sensor data. The invention involves determining a correction value based on a difference between the first and second estimated rotational speeds, and applying the correction value to the first estimated rotational speed to determine the true current rotor speed of the wind turbine.
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Patent Agency Ranking
公开(公告)号：WO2021121506A1
公开(公告)日：2021-06-24
申请号：PCT/DK2020/050364
申请日：2020-12-15
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： GLAVIND, Lars , NIELSEN, Johnny
IPC: F03D7/02 , F03D17/00 , G01S19/42 , F03D7/0204 , F05B2260/80 , F05B2270/802
Abstract: A method of determining an orientation of a nacelle of a wind turbine, wherein the nacelle carries a Global Navigation Satellite System (GNSS) sensor, the method comprising: yawing the nacelle between a series of orientations; obtaining locus data based on a series of calibration positions measured by the GNSS sensor, wherein each calibration position is measured by the GNSS sensor when the nacelle is in a respective orientation of the series of orientations; storing the locus data; after storing the locus data, measuring a new position with the GNSS sensor; and determining the orientation of the nacelle on the basis of the stored locus data and the new position.
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公开(公告)号：WO2021069045A1
公开(公告)日：2021-04-15
申请号：PCT/DK2020/050281
申请日：2020-10-09
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： RATTI, CarloAlberto , NIELSEN, Johnny , VAN SCHELVE, Jens
Abstract: A method of transitioning a wind turbine from a sleep state is provided in which a wind speed at the wind turbine is measured, and the measured wind speed is compared to 5 a wake-up threshold. If the wind speed exceeds the wake-up threshold, the wind turbine is transitioned to an active state. Before comparing, either the measured wind speed or the wake-up threshold is adjusted based on an outcome of at least one previous transition from the sleep state of the wind turbine.
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公开(公告)号：WO2018059641A1
公开(公告)日：2018-04-05
申请号：PCT/DK2017/050312
申请日：2017-09-27
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： NIELSEN, Johnny
Abstract: The invention relates to a method of controlling a wind turbine comprising a wind direction sensor, a yawing system, and a control system for yawing the wind turbine rotor relative to the wind. The method comprises obtaining an estimate for a wind power parameter as a function of a relative wind direction, where the wind power parameter is determined as one of a power, a torque, a blade load, or a blade pitch angle of the wind turbine. At time intervals, a data set is established comprising a wind power parameter and a wind direction parameter as measured by the wind direction sensor. Over time a group of data sets is then obtained for a number of pre-defined wind direction intervals, and a wind direction offset is determined for each interval by comparing the average wind power parameter for that interval with the estimate of the wind power parameter. The wind direction offsets of the different wind direction intervals are used to adjust the wind direction parameter, and applied in the controlling of the wind turbine. The invention further relates to a control system for a wind turbine for performing a control method as mentioned above.
Abstract translation: 风力涡轮机的控制方法技术领域本发明涉及一种控制风力涡轮机的方法，该风力涡轮机包括风向传感器，偏航系统和用于相对于风偏转风力涡轮机转子的控制系统。 该方法包括获得作为相对风向的函数的风力参数的估计，其中风力参数被确定为风力涡轮机的功率，转矩，叶片负载或叶片俯仰角中的一个。 以时间间隔，建立包括由风向传感器测量的风力功率参数和风向参数的数据集。 随着时间的过去，针对多个预定风向间隔获得一组数据集，并且通过比较该间隔的平均风力参数与风力参数的估计来确定每个间隔的风向偏移。 利用不同风向间隔的风向偏移来调整风向参数，并应用于风力机的控制。 本发明还涉及用于执行如上所述的控制方法的风力涡轮机的控制系统。
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公开(公告)号：WO2017137051A1
公开(公告)日：2017-08-17
申请号：PCT/DK2017/050036
申请日：2017-02-10
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： GLAVIND, Lars , OLESEN, Ib Svend , THØGERSEN, Morten , KIIB, Kristian , NIELSEN, Johnny
CPC classification number: F03D7/0204 , F03D7/0264 , F05B2260/845 , F05B2270/329 , F05B2270/809 , Y02E10/723
Abstract: A yaw sensor for a wind turbine is described. The yaw sensor comprises a plurality of rotary switches, each configured to be coupled to a yaw drive gearbox of a wind turbine nacelle, the rotary switches each being operable to activate and deactivate respective associated electrical contacts in dependence on an amount of yaw rotation of the nacelle relative to a start position. Each electrical contact is active at a plurality of first yaw rotation ranges with respect to the start position, and inactive at a plurality of second yaw rotation ranges with respect to the start position, the first and second yaw rotation ranges being interleaved. The first yaw rotation ranges of the electrical contacts do not overlap each other between the start position and a first rotational position in a first rotational direction from the start position, and do not overlap each other between the start position and a second rotational position in a second rotational direction from the start position opposite to the first rotational direction. All of the electrical contacts are activated at the first rotational position and the second rotational position. The electrical contacts each generate a respective electrical signal when active. The activation of one or more of the electrical contacts between the first and second rotational positions confirms that the rotary switches are operating correctly, reducing the requirement for regular safety checks, and permitting yaw sensor supervision to be conducted by comparing pulses generated by the electrical contacts with the output of an angular encoder.
Abstract translation: 描述了用于风力涡轮机的偏航传感器。 偏航传感器包括多个旋转开关，每个旋转开关被配置为耦合到风力涡轮机机舱的偏航驱动齿轮箱，每个旋转开关可操作以根据 机舱相对于起始位置。 每个电触点在相对于起始位置的多个第一偏转旋转范围处起作用，并且在相对于起始位置的多个第二偏航旋转范围处不起作用，第一和第二偏转旋转范围被交错。 电触头的第一偏转旋转范围在起始位置和第一旋转位置之间在从起始位置起的第一旋转方向上彼此不重叠，并且在起始位置和第二旋转位置之间彼此不重叠 第二旋转方向从与第一旋转方向相反的起始位置开始。 所有电触点在第一旋转位置和第二旋转位置被激活。 电触点各自在激活时产生相应的电信号。 在第一和第二旋转位置之间的一个或多个电触点的激活确认了旋转开关正确地工作，减少了对常规安全检查的要求，并且允许通过比较由电触点产生的脉冲来进行偏航传感器监视 与角度编码器的输出。
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公开(公告)号：WO2023011696A1
公开(公告)日：2023-02-09
申请号：PCT/DK2022/050163
申请日：2022-08-04
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： PINTO FRUTUOSO, Ines , MARCOS, Goncalo Lucas , DUARTE PEREIRA, Goncalo Artur , NIELSEN, Johnny
Abstract: A method of calibrating a reference of a wind turbine. The method comprises monitoring performance of the wind turbine over a calibration period to generate performance data, wherein the calibration period comprises a series of sub-periods. The reference is calibrated by: setting the reference on the basis of the performance data; and, for each sub-period: determining a sub-period value on the basis of the performance data generated during that sub-period, comparing the sub-period value with the reference, and updating the reference with the sub-period value if the comparison shows that a performance of the wind turbine indicated by the sub-period value is better than a performance of the wind turbine indicated by the reference. The comparison and updating steps enable the reference to more accurately reflect more recent performance of the wind turbine. The method can also be reliably used in freezing temperatures.
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