Device and method for monitoring damping effect of elastic support of gearbox of wind turbine generator

A technology of elastic support and wind turbines, applied in the monitoring of wind turbines, wind turbines, engines, etc., can solve the problems of elastic support damage, large calculation errors, impact evaluation, etc., achieve less parameter variables, reduce calculation errors, and ensure safety The effect of stable operation
CN112761900AActive Publication Date: 2021-05-07HUANENG CLEAN ENERGY RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUANENG CLEAN ENERGY RES INST
Publication Date
2021-05-07

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Abstract

The invention discloses a device and method for monitoring the damping effect of an elastic support of a gearbox of a wind turbine generator, and belongs to the technical field of state monitoring of the wind turbine generator. According to the vibration characteristics of the gearbox and the vibration isolation rule design of the elastic support, filtering processing and multi-band monitoring are carried out on collected signals, comprehensive monitoring is ensured, the monitoring effectiveness can be ensured by performing filtering and frequency-band-division processing on collected signals, and vibration effective values are compared in a targeted manner according to frequency bands, so that the operation state of the elastic support is mastered, the vibration reduction effect is effectively calculated, and the operation state of the elastic support is mastered. Parametric variables involved in calculation are few, calculation errors can be greatly reduced, and robustness is improved. The operation state of the elastic support of the gearbox can be monitored on line in real time, damage to a unit caused by failure of the elastic support is prevented, the predictive maintenance function is achieved, and safe and stable operation of the unit is guaranteed.
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Description

technical field

[0001] The invention belongs to the technical field of wind turbine state monitoring, and relates to a monitoring device and a monitoring method for the elastic support vibration reduction effect of a gearbox of a wind turbine. Background technique

[0002] The elastic support mainly plays two roles in the wind turbine: one is to support the gearbox to carry the load of the wind turbine, which requires its rigidity to meet the elastic support not exceeding a certain amount of deformation when the unit is running, so as to ensure the stability of the unit operation The second is vibration reduction and vibration isolation. The spring-damping system composed of elastic supports reduces the impact on the frame during the operation of the gearbox and protects the unit. As the operating time of the unit increases, parts and components will age, and the elastic support plays an important role in protecting the frame. Whether the vibration isolation effect is normal...

Claims

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