Wind alignment method and wind alignment system of wind generator yaw system

Abstract

The invention discloses a wind alignment method of a wind generator yaw system. The method comprises the steps that a current yaw starting angle parameter is obtained through current wind speed according to the functional relationship between the wind speed and a yaw starting angle by a yaw system; and when a deviation angle between a wind generator bin and the wind direction is judged to be larger than the current yaw starting angle by the yaw system, the yaw system controls the wind generator bin to yaw. According to the wind alignment method, the yaw starting angle is set according to the current wind speed, so that yaw starting control is more precise; the action frequency of the yaw system is effectively lowered; abrasion of yaw gears is reduced; yaw fatigue is alleviated; and the generation capacity of the wind generator is improved.

Description

technical field [0001] The invention relates to a wind-driven generator control technology, in particular to a wind-facing method and a wind-facing system for a yaw system of a wind-powered generator. Background technique [0002] At present, the wind control strategy for the yaw system of the wind turbine in the prior art includes setting the yaw start angle, the deviation angle is the angle between the actual nacelle and the wind direction, and the deviation angle allowed by the normal operation of the wind turbine The limit value is the yaw start angle. When the wind turbine is working, its control system detects the deviation angle of the wind direction and the nacelle at all times. If the deviation angle is greater than the corresponding yaw start angle, the wind turbine is controlled to start yaw. In actual operation, The yaw start angle is a set of fixed parameters set according to actual process requirements. Generally, there are two cases for setting the yaw start ...

AI Technical Summary

Problems solved by technology

[0003] The yaw starting angle of the prior art is a fixed value, which is determined by parameters. The starting control of yaw is not fine enough, and the balance strategy of yaw frequency and power generation is not fine enough.

Too many yaw frequency caused by frequent action of yaw system, resulting in frequent yaw action, wear and tear of yaw gear, yaw fatigue

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