System and method for judging fan tower deformation and foundation settlement

Abstract

The invention discloses a system and method for judging fan tower deformation and foundation settlement, and the system acquires the temperature change data, displacement change data and strain changedata of a fan tower and a fan bottom foundation of a wind turbine generator in real time through a fiber bragg grating sensor, a fiber bragg grating wavelength demodulator is utilized to demodulate the data, and the demodulated data is then sent to a monitoring server so as to visually display the demodulated temperature change data, displacement change data and strain change data, thereby judging the deformation and foundation settlement of the fan tower. According to the invention, dynamic measurement can be realized, and the system has the advantages of strong anti-electromagnetic interference capability, good insulation, corrosion resistance, high precision, large-range measurement, high resolution, small size, light weight, strong capability of adapting to a measured environment, many measurable parameters, wide objects, strong compatibility with optical fibers, suitability for long-distance transmission, high sensitivity, and convenience for multiplexing and networking.

Description

Technical field[0001]The invention relates to the technical field of power system detection, in particular to a system and method for discriminating the deformation of a wind turbine tower and the settlement of the foundation.Background technique[0002]As a new high-tech, fiber grating sensor has advantages that traditional sensors do not have. For new energy wind farms in the power system, the smooth operation of the equipment is very important. Once the equipment fails, the power transmission will be interrupted and the impact will be huge. The tower is an important component of the wind turbine. The wind turbine has a large mass, a long blade length, a load bearing capacity, a high height, and flexibility. The tower bears more complex and variable loads during the operation of the wind turbine. In addition, due to the complex geological structure, the foundation also has uneven settlement, which may cause the tower to deform. If these hidden dangers cannot be discovered in time, t...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a system and method for discriminating the deformation of the wind turbine tower and the settlement of the foundation to solve the problem of high cost and untimely monitoring of the deformation of the tower of the fan unit, the accuracy of the data is affected by human factors, and the heavy workload of foundation settlement observation. The program is complicated and difficult to operate, and it is easy to produce errors in measurement and instrument errors.

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