Intelligent output type vibration monitoring device, system comprising the device, and monitoring method

Abstract

The invention discloses an intelligent output type vibration monitoring device, a system comprising the device, and a monitoring method, and belongs to the vibration monitoring field. The intelligent output type vibration monitoring device comprises an X-direction vibration acquisition unit; a Y-direction vibration acquisition unit; a monitoring alarming unit connected with the X-direction vibration acquisition unit and the Y-direction vibration acquisition unit. The X-direction vibration acquisition unit comprises an acceleration sensor X1 and an acceleration sensor X2, which are redundant to each other; and a signal acquisition module X connected with the two acceleration sensors. The Y-direction vibration acquisition unit comprises an acceleration sensor Y1 and an acceleration sensor Y2, which are redundant to each other; and a signal acquisition module Y connected with the two acceleration sensors. The monitoring alarming unit is connected with the signal acquisition module X and the signal acquisition module Y, and is used to receive acquisition data transmitted by the signal acquisition module X and the signal acquisition module Y, and is used to give fault alarms of different types according to the acquisition data. A cabin vibration false alarm rate of a wind turbine generator set is effectively reduced.

Description

technical field [0001] The invention relates to the field of vibration monitoring, in particular to an intelligent output vibration monitoring device that can be used for vibration monitoring of a wind turbine nacelle, a system including the device and a monitoring method. Background technique [0002] Nacelle vibration sensors are important safety monitoring equipment for wind turbines. When the unit has extreme gusts, resonance and other working conditions during operation, the vibration of the wind turbine will increase. At this time, the vibration sensor in the nacelle will trigger an alarm value to stop the wind turbine for protection. [0003] Two types of sensors are mainly used for cabin vibration sensors at present. The first type: piezoelectric acceleration sensor. The second type: capacitive type acceleration sensor. Both sensors can meet the routine monitoring of the unit, but from the current usage situation, the sensors generally have the following problems:...

AI Technical Summary

Problems solved by technology

Both sensors can meet the routine monitoring of the unit, but from the current usage situation, the sensors generally have the following problems: the sensor uses a bidirectional sensor to monitor the vibration value of the unit before and after (Y direction), left and right (X direction), each direction only uses One sensor, the false alarm rate of the sensor is high, the sensor failure and the unit failure cannot be effectively distinguished and identified, and the unified alarm is "cabin vibration sensor alarm". At this time, the maintenance personnel cannot judge whether it is the sensor failure or the unit vibration alarm failure, which affects the maintenance efficiency

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