Wind turbine generator system yaw system control performance optimization method and system

Abstract

The invention provides a wind turbine generator system yaw system control performance optimization method and system. The method comprises the steps of acquiring the data of incoming flow air in front of a machine cabin at fixed time intervals, wherein the data of incoming flow air includes the incoming flow air speed, the incoming flow absolute wind direction and the wind direction of incoming flow relative to the machine cabin; sectoring the incoming flow absolute wind direction according to the preset angle intervals, and sectioning the incoming flow air speed according to the preset wind speed intervals; carrying out the first time of grouping on the data of the incoming flow air according to sectors and subsections; calculating the yaw errors of the corresponding groups according to the wind direction of the incoming flow relative to the machine cabin to obtain a yaw error optimization model; and when the yaw system is optimized, inputting the measured incoming flow air speed and the measured incoming flow absolute wind direction into the yaw error optimization model, carry outing matching to find the corresponding yaw error, and correcting the corresponding yaw error to the input of a yaw control system. With the wind turbine generator system yaw system control performance optimization method and system, different optimizing strategies can be adopted for wind turbine generator systems of different models in the situations with different wind speeds of incoming flow, and the optimizing accuracy of yaw errors is improved.

Description

technical field [0001] The invention belongs to the field of wind power yaw control, in particular to a method and system for optimizing the control performance of a yaw system of a wind power generating set. Background technique [0002] With the large-scale development of wind power and the continuous accumulation of detection methods and methods, manufacturers and wind farm owners have put forward higher requirements for the performance of wind turbines. The yaw system is an important part of the control system of horizontal axis wind turbines. Control performance directly determines the safety and economy of wind turbines. [0003] In the prior art, one method of optimizing the control performance of the yaw system is to activate the yaw system as long as there is a yaw deviation. This optimization method has defects such as frequent actions and reduced service life of the yaw system. In addition, the performance optimization method of the yaw system in the prior art us...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a method and system for optimizing the control performance of the yaw system of a wind power generating set, which is used to solve the problem of reducing the service life of related equipment by frequently starting the yaw system in the prior art. Adopting the same optimization strategy is not targeted, the control effect is not ideal, and the power generation is low.

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