Method, device and system for determining cabin displacement of wind generating set

Abstract

The invention provides a method, a device and a system for determining cabin displacement of a wind generating set. The wind generating set comprises a cabin, a linear motion sensor used for measuring linear motion data of the cabin, and an angle sensor used for measuring angle data of the cabin. The method for determining the cabin displacement of the wind generating set comprises the steps that linear motion data of a cabin are obtained through the linear motion sensor, and first displacement is calculated based on the obtained linear motion data; and the angle data of the cabin is acquired by the angle sensor, and a second displacement is calculated based on the acquired angle data. According to the method, the device and the system for determining the cabin displacement of the wind generating set, the first displacement and the second displacement which are respectively calculated in two modes can be combined so that a more accurate cabin displacement calculation result can be obtained.

Description

technical field [0001] The present invention relates to wind power generation technology, more specifically, to a method, device and system for determining the displacement of a nacelle of a wind power generating set. Background technique [0002] A wind power generating set usually includes a tower and a nacelle arranged on the tower. During the operation of the wind power generating set, the nacelle will be affected by external forces to cause displacement, which will increase the load on the tower. Therefore, accurate nacelle displacements are required as input in order to correctly assess the loads on the wind turbine. [0003] A traditional nacelle displacement determination method determines the nacelle displacement by means of satellite positioning. This method of determining the displacement of the cabin needs to set up a base station and a measuring station. The measuring station is composed of a data acquisition module and two positioning antennas. The measuring ...

AI Technical Summary

Problems solved by technology

In the method of deriving the cabin displacement by means of the feature points in the image, it is necessary to use the image acquisition equipment to calculate the cabin displacement in the image collected by the image acquisition equipment, and deduce the actual cabin displacement from this, but affected by rain, fog Influenced by weather factors, etc., the collected images may be inaccurate, resulting in inaccurate calculation results of the actual cabin displacement

In the method of calculating the displacement of the cabin by means of the acceleration sensor signal, the acceleration represented by the acceleration sensor signal needs to be integrated twice, but the noise caused by external factors will make the calculation result inaccurate

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