Wind turbine generator set state monitoring system having yawing state monitoring function and wind turbine generator set state monitoring method thereof

Abstract

The invention discloses a wind turbine generator set state monitoring system having a yawing state monitoring function and a wind turbine generator set state monitoring method thereof. According to the scheme, the yawing direction monitoring function is additionally arranged in the wind turbine generator set state monitoring system so that real-time monitoring of the wind turbine generator set yawing state can be realized. The generator set yawing state synchronized with the vibration data often needs to be referred in fault diagnosis of the wind turbine generator set according to the vibration data so as to judge whether the fault is associated with yawing of the generator set. The effective basis can be provided for fault diagnosis of the wind turbine generator set through real-time monitoring of the wind turbine generator set yawing state so that the diagnosis accuracy can be enhanced.

Description

technical field [0001] The invention relates to wind power generation technology, in particular to a state monitoring system of a wind power generating set with a yaw state monitoring function. Background technique [0002] The yaw system is the main component of the wind turbine. The nacelle mainly produces yaw actions in the following three working conditions. First, it automatically faces the wind during normal operation; deviated from the wind direction. During the yaw process of the nacelle, the yaw torsional vibration is unstable, the yaw braking torque is uneven, and the yaw braking torque is too large or too small, which will cause abnormal vibration of the unit. [0003] In the existing technology, such as figure 1 As shown, the wind turbine condition monitoring system (hereinafter referred to as CMS) can record the vibration data and speed data of the wind turbine in real time, but cannot simultaneously record the yaw state data of the nacelle. When there is a f...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a state monitoring system for wind power generators with the function of yaw state monitoring, so as to solve the problem that it is impossible to directly judge whether the abnormal vibration of the wind power generator is caused by the yaw fault during the fault diagnosis process of the wind power generator

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