An online measurement method for brake disc wear of wind turbine yaw system

Abstract

The invention discloses an on-line measurement method for the wear amount of a brake disc in a wind turbine yaw system. The measurement device based on the line measurement method includes a brake caliper hydraulic pipeline pressure sensor, a yaw rotation angular velocity measurement sensor, a signal acquisition and processing module, an optical fiber Data transmission system, industrial computer, etc. This measurement method is suitable for various active yaw braking systems. The invention has simple structure and high degree of generalization. For brake discs and brake discs of different materials or the replacement of brake discs and discs, it is only necessary to select the wear coefficients A1 and A2 of the corresponding materials in the industrial computer program, and set them appropriately. r-value. The invention can meet the use requirements of wind power generating sets of different models. Through online real-time measurement, you can understand the use status of brake discs and brake pads, reasonably evaluate and arrange operation and maintenance work, reduce downtime and power loss, and have good economic and social benefits.

Description

technical field [0001] The invention belongs to the technical field of wind power generating sets, and in particular relates to an online measurement method for the wear amount of a brake disc of a wind turbine yaw system. Background technique [0002] During the normal operation of the wind turbine, it is necessary to adjust the orientation of the wind rotor in time according to the change of the wind direction to ensure that the front faces the direction of the incoming wind. This function is realized by the wind facing device or yaw system of the wind turbine. After the yaw system adjusts the nacelle to face the direction of the incoming wind, it must be braked in time, and the yaw system should be stable during the normal operation of the wind turbine, and the brake disc and brake pad should maintain sufficient friction. [0003] However, in long-term operation, due to wear and tear of the brake disc and brake pad, the thickness of the brake disc and brake pad will be re...

AI Technical Summary

Problems solved by technology

[0003] However, in long-term operation, due to wear and tear of the brake disc and brake pad, the thickness of the brake disc and brake pad will be reduced. After the thinning reaches a certain level, the pressing force during the braking process may be insufficient. Sliding of the yaw system in mid-air, and inaccurate wind direction of the wind turbine yaw system, etc., which will affect the normal operation of the wind turbine and may cause major equipment safety hazards such as damage to the wind turbine equipment

The power loss will be caused by the shutdown inspection of the fan, and it is difficult to directly measure the brake disc and brake pad due to the structure of some fans.

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