A wind direction compensation optimization method and device for a wind turbine

Abstract

The invention discloses a wind direction compensation optimization method for a wind turbine generator set. The method includes the following steps that data of the wind turbine generator set in normal operation are collected; the collected data are segmented in an equally spaced mode according to wind direction intervals, and the data are pre-processed; a power curve cluster is drawn according to the pre-processed data of the different wind direction intervals; outside envelope optimizing is carried out according to the power curve cluster, and the optimal wind direction intervals corresponding to various rotation speed segments are recognized according to a steady state power-rotation speed curve; and reverse interpolation is carried out according to the optimal wind direction intervals, so that compensation for the incoming flow wind direction is achieved. The invention further discloses a wind direction compensation optimization device for the wind turbine generator set. The device comprises a data collection module, a data interval segment module, a data processing module, a power curve drawing module, an outside envelope optimizing module and a wind direction compensation scheduling module. The wind direction compensation optimization method and device for the wind turbine generator set have the advantages that compensation is carried out on the incoming flow wind direction of the wind turbine generator set, accurate wind alignment is achieved, and the electricity generation performance is improved.

Description

technical field [0001] The invention mainly relates to the technical field of wind power generation, in particular to a wind direction compensation optimization method and device for a wind turbine. Background technique [0002] When the incoming wind passes through the surface of the wind rotor of a large-scale wind turbine, it drives the wind rotor to rotate, causing the wind direction behind the wind rotor to change. However, the anemometer is installed at the tail of the nacelle, and the measured wind direction is the wind direction behind the wind rotor, which cannot be accurately represented. The wind direction in front of the wind rotor, in the existing control technology, handles the wind direction passing through the surface of the rotating wind rotor differently. Some manufacturers directly use the wind direction measured by the wind direction instrument at the tail of the engine room to represent the incoming wind direction, and some manufacturers use the linear r...

AI Technical Summary

Problems solved by technology

The disadvantages of this method are: the application cost of lidar equipment is high and each model needs to be measured separately; the same model also generally has individual differences, which is not suitable for batch application

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