Brake pad abrasion detection system of yaw system of wind driven generator unit

Abstract

The invention provides a brake pad abrasion detection system of a yaw system of a wind driven generator unit, relates to the technical field of wind power generation, and solves the technical problemsthat the thickness of a brake pad cannot be monitored in time and a yaw brake ring deforms because part of the brake pad is still used when the thickness is smaller than the replacement thickness inthe prior art. The brake pad abrasion detection system of the yaw system of the wind driven generator unit comprises yaw brakes, the yaw brake ring, a main control system and a brake pad abrasion detection loop; the brake pad abrasion detection loop comprises a detection signal power supply and a limiting switch and is electrically connected with the main control system; the yaw brakes are distributed in the circumferential direction of the inner ring of the yaw brake ring, and the limiting switch is connected with the brake pad; and when the brake pad is abraded to the thickness to be replaced and the yaw brake ring is locked, the yaw brake ring can enable the limiting switch to be closed and enable the brake pad abrasion detection loop to be connected, and the brake pad abrasion detection loop can send an alarm signal to the main control system. The brake pad abrasion detection system of the yaw system of the wind driven generator unit is used for monitoring the abrasion condition ofthe brake pad in time.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a brake pad wear detection system for a yaw system of a wind power generator set. Background technique [0002] The yaw system, also known as the wind-facing device, is a part of the wind turbine nacelle. Its function is to quickly and smoothly align the wind direction when the direction of the wind speed vector changes, so that the wind rotor can obtain the maximum wind energy. [0003] Wind turbines generally use an electric yaw system to adjust the rotor and align it with the wind. The yaw system generally includes a wind vane that senses the wind direction, a yaw motor, a yaw brake ring, and a yaw brake. It works as follows: [0004] Under normal conditions, the yaw brake ring is locked by the brake pads of multiple yaw brakes distributed along the circumferential direction of its inner ring. In the control system, after comparison, the main control system se...

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a brake pad wear detection system for wind turbine yaw system to solve the problem in the prior art that the brake pads of each operation and maintenance wind field yaw system have no high-quality fault signal detection equipment, which may cause some units to The brake pads are smaller than the replacement thickness and cannot be detected in time, which eventually leads to technical problems of deformation or damage of the yaw brake ring

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