Design Of Vibration Monitoring System For Hydroelectric Generating Set Based On LabVIEW

As China vigorously develop hydropower,the proportion of hydroelectric power in power system is increasing,the safe and stable operation of hydropower stations is particularly important.Under the influence of factors such as design,manufacture,installation and operation,the hydroelectric generating units will produce different degree of vibration.On the one hand,when the vibration of the unit beyond the allowable range,will seriously affect the unit safe and stable operation and power supply quality;on the other hand,the hydro-generator operating status of about 80% of the information can be reflected through the unit’s vibration signal.Therefore,through the real-time monitoring and analysis of the unit vibration signal,it is one of the important methods to judge the operation status and fault diagnosis of the unit.In this paper,the virtual instrument technology is applied to the vibration monitoring of hydropower generating unit,based on the LabVIEW software platform,combined with the corresponding hardware,developed a real-time monitoring system for hydro-generator units vibration,effectively improved some issues that the traditional vibration monitoring system of hydropower generating unit high development cost andlong period.This article first introduces the research background and significance of hydro-generator units vibration monitoring,and the progress of related fields at home and abroad,this paper analyzed the characteristics of the LabVIEW software,and applied in the vibration monitoring of advantage,and according to the requirements of the developed system has carried on the related hardware configuration,software part expounds the system of data acquisition,signal analysis and processing module,and system development process optimization,testing system and combining with examples.The instance tests show that the system has flexible operation,high precision,friendly interface,short development cycle and low maintenance cost,it has good application prospect,and provide a reference for relevant hydro-generator vibration monitoring system development.