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US 11,078,884 B2Granted
Determining wind direction offset using yaw events
AssigneeVestas Wind Systems A/S
InventorJohnny Nielsen
Life of this patent
Estimating the term…
Abstract
A wind turbine includes a wind direction sensor, a yawing system, and a control system for yawing the wind turbine rotor relative to the wind. The control system measures a wind direction parameter by the wind direction sensor Over time a group of data sets is obtained and a wind direction offset is determined from the group of data sets which is used to adjust the wind direction parameter. The adjusted wind direction parameter is then used in the controlling of the wind turbine.
Claims20
A method of controlling a wind turbine, the method comprising:
- obtaining a plurality of data sets corresponding to a plurality of yaw events, wherein each yaw event of the plurality of yaw events comprises:
- determining a first value of a wind direction parameter;
- determining a yaw parameter of the wind turbine as a function of the wind direction parameter;
- controlling a yawing system of the wind turbine according to the yaw parameter, wherein the wind turbine is yawed by a yaw angle;
- determining a second value of the wind direction parameter after the wind turbine is yawed by the yaw angle;
- and
- determining a respective data set of the plurality of data sets that corresponds to the yaw event, wherein the data set comprises the wind direction parameter, a first difference between the first value and the second value of the wind direction parameter, and the yaw angle;
- determining a wind direction offset using the plurality of data sets;
- adjusting values of the wind direction parameter as a function of the wind direction offset;
- and
- controlling the wind turbine according to the adjusted values of the wind direction parameter.
8 more elements
A control system for a wind turbine, the control system comprising:
- a controller configured to perform an operation comprising:
- obtaining a plurality of data sets corresponding to a plurality of yaw events, wherein each yaw event of the plurality of yaw events comprises:
- receiving, from a sensor of the wind turbine, a first value of a wind direction parameter;
- determining a yaw parameter of the wind turbine as a function of the wind direction parameter;
- controlling a yawing system of the wind turbine according to the yaw parameter, wherein the wind turbine is yawed by a yaw angle;
- receiving, from the sensor, a second value of the wind direction parameter after the wind turbine is yawed by the yaw angle;
- and
- determining a respective data set of the plurality of data sets that corresponds to the yaw event, wherein the data set comprises the wind direction parameter, a first difference between the first value and the second value of the wind direction parameter, and the yaw angle;
- determining a wind direction offset using the plurality of data sets;
- adjusting values of the wind direction parameter as a function of the wind direction offset;
- and
- controlling the wind turbine according to the adjusted values of the wind direction parameter.
9 more elements
A wind turbine, comprising:
- a rotor;
- a sensor configured to detect values of a wind direction parameter;
- a yawing system configured to yaw the rotor;
- and
- a control system configured to perform an operation, comprising:
- obtaining a plurality of data sets corresponding to a plurality of yaw events, wherein each yaw event of the plurality of yaw events comprises:
- measuring, using the sensor, a first value of the wind direction parameter;
- determining a yaw parameter of the wind turbine as a function of the wind direction parameter;
- controlling the yawing system according to the yaw parameter, wherein the wind turbine is yawed by a yaw angle;
- measuring, using the sensor, a second value of the wind direction parameter after the wind turbine is yawed by the yaw angle;
- and
- determining a respective data set of the plurality of data sets that corresponds to the yaw event, wherein the data set comprises the wind direction parameter, a difference between the first value and the second value of the wind direction parameter, and the yaw angle;
- determining a wind direction offset using the plurality of data sets;
- adjusting values of the wind direction parameter as a function of the wind direction offset;
- and
- controlling the wind turbine according to the adjusted values of the wind direction parameter.
13 more elements
Dependencies are inferred from the claim text.