Monitoring device and method for non-contact wind driven generator

Abstract

The invention relates to the technical field of wind power generation monitoring, in particular to a monitoring device and method for a non-contact wind driven generator, and solves the problem that existing monitoring is complex and expensive and affects motion of the generator. The device comprises a laser device, a first convergent lens, a reflector, a PSD sensor, a data processor and a second convergent lens; the laser device is installed on the second plane, the reflector is arranged on the taper surface of a spindle of the generator, the first convergent lens is located between the laser device and the reflector, the second convergent lens is located between the reflector and the PSD sensor, the PSD sensor is connected with the data processor, the PSD sensor can detect the horizontal displacement x'of a light spot irradiated on the PSD sensor, and the data processor can calculate the axial displacement of the axial movement of the spindle of the generator according to x'. The device has the advantages of being high in precision, high in response speed, easy in structure operation, low in cost, stable and reliable in working performance, capable of carrying out long-time continuous monitoring and the like.

Description

technical field [0001] The invention relates to the technical field of wind power generation monitoring, in particular to a monitoring device and a monitoring method of a non-contact wind power generator. Background technique [0002] A wind turbine is a thermal energy utilization generator that uses the sun as a heat source and the atmosphere as a working medium. It does not require fuel, does not occupy arable land, has no pollution, and has low operating costs. In recent years, it has become a key project for the development of various countries. [0003] Whether the wind turbine can be put into use normally affects the overall quality of wind power generation. The failure of the wind turbine will not only affect the unit itself, but also may cause serious safety accidents, resulting in major personal and property losses. In order to meet the requirements of wind power generation and normal operation, it is necessary to monitor the vibration state to ensure that the wind...

AI Technical Summary

Problems solved by technology

Moreover, this method requires the installation of a certain number of vibration sensors and data acquisition equipment, which increases the capital cost and wiring complexity of the wind turbine system to a certain extent.

The corresponding monitoring method needs to preprocess the collected signals to obtain the fault characteristic frequency. This method is not only complicated, but also requires a lot of time to collect data and build models for different types of normal fans.

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