Method and arrangement for the forecast of wind-resources

A technology for wind resources and weather forecasting, which is used in measurement devices, weather condition forecasting, wind turbine control, etc., can solve problems such as insufficient accuracy, and achieve the effect of improving forecasting, improving forecasting quality, and improving forecasting quality.

Inactive Publication Date: 2010-01-27
SIEMENS AG
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Problems solved by technology

[0005] However experience has shown that the accuracy of this model is insufficient for the power output guarantees that may be associated with high penalties

Method used

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  • Method and arrangement for the forecast of wind-resources

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Embodiment Construction

[0038] The prediction of the wind resource of the wind farm WF is done by the weather forecasting device WPT, wherein the weather forecasting device WPT uses a long-term dataset of meteorological data. The meteorological data are related to the location of the wind farm WF.

[0039] Wind speed measurements are made by at least one of the wind turbines of the wind farm WF. In this example, wind speed measurements are made by six wind turbines WT11, WT13, WT15, WT21, WT23 and WT25.

[0040] The wind speed measurements are transmitted to the weather forecasting device WPT, where they are used for parameterization of atmospheric turbulence. The wind speed measurements are used as additional data to be combined with the dataset of meteorological data. Predictions are done in a precise manner based on this combination of data.

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Abstract

The invention relates to a method and to an arrangement for the forecast of wind-resources of a wind-farm. The forecast is done by a numerical weather-prediction-tool, where the weather-prediction-tool uses a long-term data-set of meteorological data. This data are related to the location of the wind-farm. A wind-speed measurement is done by at least one wind-turbine of the wind-farm to do a parameterization of an atmospheric turbulence. The wind-speed measurement is used to generate a data-stream, which is combined with the data-set of the meteorological data to do the forecast.

Description

technical field [0001] The present invention relates to a method and apparatus for forecasting wind resource and forecasting the output of a commercially operable wind farm. Background technique [0002] Prediction of the wind resource and thus the output power of the wind farm will improve the ability to guarantee the specific power production of the wind farm. [0003] Therefore, accurate forecasting is required to improve wind power generation values. This could make it easier to achieve greater improvements in wind farms than they are today. [0004] There are many concepts for predicting wind resources and wind farm output. These concepts are based on traditional digital weather forecasting from devices at the mesoscale level, "Mesoscale Meteorology" is the study of meteorological systems smaller than synoptic-scale systems but larger than micro- and storm-scale cumulus systems. [0005] Experience has shown, however, that the accuracy of such models is insufficient ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01W1/10
CPCF05B2270/325Y02E10/723F03D7/0248Y02E10/722G01W1/10F03D11/0091F05B2270/32F05B2260/8211F03D7/00F03D17/00Y02E10/72
Inventor H·施蒂斯达尔
Owner SIEMENS AG
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