Monitoring device of yaw braking device of wind generating set

Abstract

The invention discloses a monitoring device of a yaw braking device of a wind generating set. The monitoring device comprises: a plurality of measuring devices, wherein each measuring device is respectively installed in each of the yaw braking devices of the wind generating set, and is used for generating a sensing signal indicating the pressure borne by a disc spring of the yaw braking device; and a controller which receives sensing signals from at least one part of the measuring devices, acquires pressure borne by the disc spring based on the sensing signals, and sends a first alarm signal and / or commands the wind generating set to stop when at least one of the pressure borne by the disc spring is out of a preset pressure range.

Description

technical field

[0001] The invention belongs to the field of wind power generation, in particular to a monitoring device for a yaw braking device of a wind power generating set. Background technique

[0002] The yaw system of the wind turbine is an important part of the wind turbine. The function of the yaw system in the wind turbine is to rotate the nacelle so that the wind rotor of the wind turbine is always in line with the wind direction to ensure that the wind turbine maintains the maximum Absorbs wind energy efficiently. The yaw system usually includes a base, a tower, a yaw drive, a yaw bearing, and a yaw braking device. The functions of the yaw system mainly include: the function of yaw rotating the nacelle. When the wind direction changes, the yaw drive drives the nacelle relative to the tower. The barrel rotates so that the nose always faces the direction of the incoming wind; the braking function, when the nose faces the direction of the incoming wind or other re...

Examples

Embodiment Construction

[0049] Exemplary embodiments of the present invention will now be described more fully with reference to the accompanying drawings. However, this invention should not be construed as limited to the embodiments set forth herein. The same reference numerals in the figures indicate the same or similar structures.

[0050]The yaw system of wind turbines can be divided into rolling yaw system and sliding yaw system according to the different bearing structures. The sliding yaw system provides sufficient damping through the passive yaw braking device during the yaw process to ensure the stability of the cabin and the accuracy against the wind. Wind turbines with partial rolling bearing structure can also use passive yaw braking devices to provide sufficient damping to ensure the stability of the nacelle and the accuracy of facing the wind. The passive yaw braking device mainly relies on the frictional damping torque between the sliding pad (friction pad) and the yaw ring gear to e...

technical field

[0001] The invention belongs to the field of wind power generation, in particular to a monitoring device for a yaw braking device of a wind power generating set. Background technique

[0002] The yaw system of the wind turbine is an important part of the wind turbine. The function of the yaw system in the wind turbine is to rotate the nacelle so that the wind rotor of the wind turbine is always in line with the wind direction to ensure that the wind turbine maintains the maximum Absorbs wind energy efficiently. The yaw system usually includes a base, a tower, a yaw drive, a yaw bearing, and a yaw braking device. The functions of the yaw system mainly include: the function of yaw rotating the nacelle. When the wind direction changes, the yaw drive drives the nacelle relative to the tower. The barrel rotates so that the nose always faces the direction of the incoming wind; the braking function, when the nose faces the direction of the incoming wind or other re...

Examples

Embodiment Construction

[0049] Exemplary embodiments of the present invention will now be described more fully with reference to the accompanying drawings. However, this invention should not be construed as limited to the embodiments set forth herein. The same reference numerals in the figures indicate the same or similar structures.

[0050]The yaw system of wind turbines can be divided into rolling yaw system and sliding yaw system according to the different bearing structures. The sliding yaw system provides sufficient damping through the passive yaw braking device during the yaw process to ensure the stability of the cabin and the accuracy against the wind. Wind turbines with partial rolling bearing structure can also use passive yaw braking devices to provide sufficient damping to ensure the stability of the nacelle and the accuracy of facing the wind. The passive yaw braking device mainly relies on the frictional damping torque between the sliding pad (friction pad) and the yaw ring gear to e...

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