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On-line vibration monitoring device for wind turbine generator set

A technology for monitoring wind turbines and vibrations, which is applied in the monitoring of wind turbines, wind turbines, and wind power generation. It can solve the problems of large errors, laborious disassembly and assembly, and singleness, and achieve the effect of small measurement errors and convenient assembly and disassembly.

Pending Publication Date: 2021-12-03
XIAN THERMAL POWER RES INST CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The wind turbine will generate tiny vibrations during operation. Due to the influence of external environmental factors, it is necessary to monitor the operation of the wind turbine, and infer the working condition of the wind turbine from the vibration amplitude generated during the operation of the wind turbine. For example, monitoring If there is a large vibration, it is necessary to repair the wind turbine to ensure the safe operation of the wind turbine. The actuator in the existing monitoring device is a single distance sensor, which is fixedly installed inside the nacelle. By monitoring the distance between the motor body and itself The distance between them is used to determine the vibration amplitude of the motor when it is working. This monitoring method has a large error and is laborious to disassemble.

Method used

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  • On-line vibration monitoring device for wind turbine generator set
  • On-line vibration monitoring device for wind turbine generator set
  • On-line vibration monitoring device for wind turbine generator set

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Experimental program
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Embodiment

[0025] see Figure 1-4 , the present invention provides an online vibration monitoring device for wind power generators, including a sensor holder 1, the sensor holder 1 is a ring structure.

[0026] The sensor holder 1 is clamped in the nacelle 2 and located on the peripheral side of the wind turbine body 3 .

[0027] The inner side wall of the nacelle 2 is uniformly fixedly connected with a plurality of fixing blocks 4 for fixing the sensor holder 1, and the outer side wall of the sensor holder 1 is evenly fixedly connected with a plurality of fixing slots 5 adapted to the fixing block 4, The sensor holder 1 can be drawn out from the nacelle 2 along the axial direction of the nacelle 2 under the action of external force.

[0028] Perforations are formed on the outer wall of the sensor holder 1 and between two adjacent fixing slots 5 , and a distance sensor 6 is provided at each perforation.

[0029] The distance sensor 6 runs through the through hole, and the tail of the d...

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Abstract

The invention provides an on-line vibration monitoring device for a wind turbine generator set. The device comprises a sensor holder and distance sensors, wherein the sensor holder is of an annular structure, is movably installed in a cabin of the wind turbine generator set and is located at the peripheral side of a wind driven generator body; the plurality of distance sensors are uniformly distributed along the circumferential direction of the sensor holder; and each distance sensor is connected to external equipment. According to the monitoring device, the vibration condition of the wind driven generator body can be analyzed more accurately according to multi-point data, and the monitoring device is small in measurement error and convenient to disassemble and assemble.

Description

technical field [0001] The invention relates to the technical field of vibration monitoring devices, and specifically relates to an online vibration monitoring device for a wind power generating set. Background technique [0002] Wind turbines include wind rotors and generators; the wind rotors are composed of blades, hubs, reinforcements, etc.; the blades are rotated by the wind to generate electricity, and the generator head is rotated. The wind power supply consists of wind turbines, towers supporting the generators, battery charging controllers, inverters, unloaders, grid-connected controllers, battery packs, etc. The wind turbine will generate tiny vibrations during operation. Due to the influence of external environmental factors, it is necessary to monitor the operation of the wind turbine, and infer the working condition of the wind turbine from the vibration amplitude generated during the operation of the wind turbine. For example, monitoring If there is a large vi...

Claims

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Application Information

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IPC IPC(8): F03D17/00
CPCF03D17/00Y02E10/72
Inventor 王懂懂王建峰陈大庆谢羽何韵
Owner XIAN THERMAL POWER RES INST CO LTD
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