学位论文-—基于虚拟仪器的水力机组运行工况实时监测系统.doc

南昌工程学院专科毕业设计（论文）毕业论文院系：机械与电气工程学院专业：热能与动力工程题目：基于虚拟仪器的水力机组运行工况实时监测系统PAGE\*MERGEFORMATI摘要水电是我国重点发展的绿色能源，水电生产具有开停机方便、运行费用低，对环境污染小等优点，合理充分地利用水电能源对我国的经济发展起着巨大的推动作用，因此有效地对水力机组运行参数进行检测、分析、优化，对水轮机组高效稳定运行将起到重要作用。本文采用虚拟仪器技术，通过LabVIEW软件编程技术，设计了一套水力机组运行实时监测系统，该系统实现了水轮机工的作水头、流量、出力等参数的实时在线监测、显示、处理以及存储，使工作人员随时了解水轮机的运行状况，为建立水力机组优化运行系统打下基础。实现水力机组的高效稳定运行及优化运行均具有一定的实际指导意义。关键词：水力机组虚拟仪器监测系统AbstractHydroelectricityisregardedasgreenenergyofmainlydevelopmentinourcountry.Ithasmanycharacteristicssuchasquickstart-up,lowoperationoutlayandlowpollution.Howtomakefulluseofhydro-electricpowerwillenormouslypromotesthedevelopmentofourcountry’seconomic.Therefore,totest,analyzeandoptimizethehydraulicparameterseffectivelywillplayanimportantroleintheefficientandreliableoperationofhydro-generatingunits.Areal-timemonitoringsystemofoperationofhydro-generatingunitsbasedonvirtualinstrumenttechniqueswasdesignedinthispaperbyusingLabVIEWprogrammingmethod.Withthesystem,thereal-timemonitor,display,dataprocessingandstorageofturbineoperatingparameterssuchaswaterlevel,waterfluxandtheoutputareachieved.Thehydraulicefficiencycanbecalculatedanddisplayedreal-timelyaccordingtothereal-timemonitoringdataofhydro-generatingunits,sothattheoperatorscanholdtherunningstatusofturbineatanytime,therealizationofefficientandstableoperationandoptimaloperationofhydro-generatingunits.Keywords:Hydro-generatingUnits;Virtualinstrument;Monitoringsystem;PAGE\*MERGEFORMATIII目录TOC\o"1-4"\h\uHYPERLINK\l_Toc14245摘要PAGEREF_Toc14245IHYPERLINK\l_Toc26606AbstractPAGEREF_Toc26606IIHYPERLINK\l_Toc18226第一章绪论PAGEREF_Toc182261HYPERLINK\l_Toc207351.1研究的背景及意义PAGEREF_Toc207351HYPERLINK\l_Toc53741.2国内外研究概况PAGEREF_Toc53742HYPERLINK\l_Toc236131.2.1国外发展现态PAGEREF_Toc236132HYPERLINK\l_Toc262381.3本文主要研究内容和重点解决的关键问题PAGEREF_Toc262384HYPERLINK\l_Toc6827第二章水电机组运行参数的测定PAGEREF_Toc68276HYPERLINK\l_Toc277802.1发电机有功功率测定方法PAGEREF_Toc277806HYPERLINK\l_Toc138982.2水轮机参数PAGEREF_Toc138986HYPERLINK\l_Toc152872.2.1