LabVIEW技术在水电厂监测方面的应用

发布时间：2018-05-22 10:04

本文选题：虚拟仪器 + LabVIEW　；参考：《华北水利水电大学》2016年硕士论文

【摘要】：随着我国水力发电事业的快速发展,装机容量不断增大,大中型水轮发电机组不断投入运行,机组运行的稳定性对电网的经济安全运行变得愈发重要。对水电机组运行状态进行实时监测、分析,对提高机组稳定性有至关重要的作用。如何提高监测技术水平来保证机组的安全运行,是目前面临的重要问题之一。现阶段,我国仍有很多水电厂采用传统的以硬件为主的监测系统,这种系统具有功能固定、灵活性差,效率较低等缺点。而以虚拟仪器软件LabVIEW为平台开发的水电厂状态监测系统能很好地弥补传统系统的不足,它集数据采集、信号分析、显示及储存于一体,能将监测设备的运行状态完整、形象地表示出来,为设备的状态分析、辅助运行提供依据。本文介绍了水电厂监测系统的组成及发展现状,讨论了水电厂监测系统的总体结构设计,详细介绍了系统传感器、信号调理器、数据收集装置等硬件的选择和设置,以及信息采集模块、数据处理模块和存储管理模块等软件的选择和设置。本文重点研究了基于LabVIEW开发的监测系统各功能模块的实现,对机组振动信息进行了波形分析、相关分析、轴心轨迹分析、幅相谱分析、功率谱分析等,并结合一些例子对机组振动做了具体分析。本文的研究成果对类似水电机组在计算机监控方面具有参考价值。
[Abstract]:With the rapid development of hydropower industry in China, the installed capacity is increasing and the large and medium-sized hydroelectric generating units are in operation. The stability of the units is becoming more and more important to the economic and safe operation of the power grid. It is very important to monitor and analyze the running state of hydropower unit in real time to improve the unit stability. How to improve the monitoring technology to ensure the safe operation of the unit is one of the important problems. At present, many hydropower plants in our country still adopt the traditional hardware-based monitoring system, which has the disadvantages of fixed function, low flexibility, low efficiency and so on. The condition monitoring system of hydropower plant developed on the platform of virtual instrument software LabVIEW can make up for the shortcomings of the traditional system. It integrates data acquisition, signal analysis, display and storage, and can complete the operation state of the monitoring equipment. It can provide the basis for the state analysis and auxiliary operation of the equipment. This paper introduces the composition and development status of monitoring system in hydropower plant, discusses the overall structure design of monitoring system in hydropower plant, and introduces in detail the selection and setting of hardware such as system sensor, signal regulator, data collection device, etc. And information collection module, data processing module and storage management module and other software selection and setting. This paper focuses on the realization of the function modules of the monitoring system based on LabVIEW. The waveform analysis, correlation analysis, axis orbit analysis, amplitude-phase spectrum analysis, power spectrum analysis and so on are carried out for the vibration information of the unit. Combined with some examples, the vibration of the unit is analyzed concretely. The research results of this paper have reference value in computer monitoring for similar hydropower units.
【学位授予单位】：华北水利水电大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TV736

【相似文献】