Method, device and controller for correcting wind misalignment of wind power generating set

Abstract

The application discloses a method, device and controller for correcting wind misalignment of a wind power generating set, belonging to the field of wind power generation. The method for correcting the wind error of the wind power generating set includes: collecting multiple sets of yaw data within a period of time; dividing multiple wind speed zones according to the wind speed, and fitting the wind speed and operating power for each wind speed zone to obtain the first fitting function relationship; using the endpoint value of the wind speed zone and the first fitting function relationship, the operating power is compensated to obtain the compensated operating power; the compensated operating power corresponding to the wind speed zone and the wind angle are fitted to obtain the second The second fitting function relationship: based on the second fitting function relationship corresponding to the multiple wind speed zones and the preset wind angle calculation function relationship, the target wind angle is obtained, and the yaw action is performed according to the target wind angle. According to the embodiments of the present application, it is possible to reduce or avoid the loss of the power generation of the wind power generating set.

Description

technical field [0001] The present application belongs to the field of wind power generation, and in particular relates to a method, device and controller for correcting wind misalignment of a wind power generating set. Background technique [0002] During the operation of the wind turbine, the wind direction may change. In order to improve the power generation efficiency of the wind generator set, the wind generator set will yaw to adjust the impellers of the wind generator set to be in a windward state. [0003] During the yaw process of the wind turbine, there is a certain relationship between the power loss factor and the deviation of the wind angle. For example, when the deviation of the wind direction angle is not zero, there is a certain loss in the power of the wind power generator. The wind vane is one of the key components of the wind turbine to face the wind, and the wind vane will affect the accuracy of the yaw. Due to the installation error of the wind vane, ...

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Problems solved by technology

Due to the installation error of the wind vane, the looseness of the wind vane, the influence of the wake of the wind turbine blades, the zero drift of the wind vane, and the abnormality of the wind vane measurement circuit, etc., the wind vane will not be correct to the wind.

The wind vane is not correct to the wind, which will cause a certain deviation between the actual wind angle and the wind angle of the wind turbine during the yaw process, so that the wind turbine cannot operate at the optimal power generation efficiency, resulting in the loss of wind turbine power generation

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