Wind turbine generator power curve verification method based on wind power prediction anemometer tower

Abstract

The invention relates to a wind turbine generator power curve verification method based on a wind power prediction anemometer tower. An anemometer tower is not independently installed, and the free flow wind speed of a wind turbine generator is expected to be obtained by using the data of the wind power prediction anemometer tower which is already arranged in a wind power plant, so that the power curve of the wind turbine generator in the wind power plant is verified. Through vector processing of wind power prediction wind direction data, wind power plant wind direction calculation rationality is fully guaranteed, and wind direction data reflect wind power plant wind direction characteristics more truly. A wind speed attenuation factor Cwake of the wind turbine generator is introduced, real-time data, recorded by a wind power plant Scada, of the wind turbine generator are fully utilized, the free flow wind speed of the wind turbine generator can be more truly calculated, and the actual operation wind regime characteristics of the wind turbine generator are represented; and a turbulence intensity calculation formula of a wind turbine generator is introduced to obtain approximate terrain dynamic characteristics.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a method for verifying the power curve of a wind turbine based on a wind power prediction wind measuring tower. Background technique [0002] At present, the power curve assessment method of wind turbines in wind farms is to verify the power characteristics of wind turbines by setting up a separate wind measuring tower after the completion of the wind farm. This method requires more manpower, material resources, time and funds, and takes 1-3 months. If it is possible to find a method that does not need to build a new wind measuring tower, it can achieve the wind turbine power curve assessment method. Not only can save the extra investment of the wind farm, but also can quickly verify the performance of the wind turbine power curve. And the power curve processing method conforms to the standard, which is of great significance for evaluating the power curve characte...

AI Technical Summary

Problems solved by technology

[0008] High cost: New wind measurement tower equipment needs to be installed, and the wind measurement can only be started after the wind measurement tower equipment is installed

It takes a long time to select the position of the wind measuring tower, purchase the wind measuring tower pole, install the sensor and the wind measuring tower, etc.

and requires a lot of human, material and financial resources

[0009] Long time-consuming: It usually takes 1-3 months to measure the wind of the newly established anemometer tower, and the test time may require sending personnel to guard and maintain the equipment

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