某火力发电厂厂用电系统设计和实现 电气工程管理专业VIP免费

题目某火力发电厂厂用电系统设计摘要电力属于我国主要能源产业，只有在电力建设发展完善的情况下，才能提高国民经济，建设公用事业。为了保障了社会经济的进步，促进节约型社会的建设，电力工业需要快速发展，电力要得到有效利用。化石燃料(煤、石油和天然气)被用来发电的方式统称为火力发电。凭借发电方式的不同，火力发电可分为燃煤/油蒸汽轮机发电、燃气-蒸汽联合循环发电和内燃机发电。火力发电是目前电力工业的主要发电形式，而近年来，中国积极倡导“和谐社会与循环经济”的能源发展模式，就是要求在提高火电技术的基础上着重考虑产生电力时对环境的影响以及能源不可再生的问题，在这一政策背景下，中国逐步加大了新能源发电的发展力度，包括风电，光伏发电，核电，潮汐发电，生物秸秆发电等发电模式。与传统火力发电相比，这种新能源发电的最大优势是对环境的污染较小。目前，火力发电厂仍占据着电力市场的大部分份额。根据国家统计局公布的数据显示，中国在2018年的总发电量为67914.2亿千瓦时，其中火力发电占总发电量的73.32%，高达49794.7亿千瓦时。但近年来电力发展跟不上经济发展的脚步，所以必须持续地提高火电技术来满足于社会的发展。本论文是2*300MW的火力发电厂厂用电系统设计，根据设计的要求，从负荷，变压器选择，短路计算，电气设备选择各方面进行研究，在设计过程中需要查阅大量的相关资料，一步步掌握使用数据的能力，使我大学四年所学的内容得到了实际运用。关键词：发电厂；变压器；电力系统；电气设备ABSTRACTElectricpowerbelongstothemainenergyindustryofourcountry,onlyundertheconditionofperfectdevelopmentofelectricpowerconstruction,canweimprovethenationaleconomyandbuildpublicutilities.Inordertoensuretheprogressofsocietyandeconomyandpromotetheconstructionofeconomy-savingsociety,theelectricpowerindustryneedstodeveloprapidly,andtheelectricpowershouldbeusedeffectively.Fossilfuels(coal,oilandgas)arecollectivelyknownasthermalpowergeneration.Thermalpowergenerationcanbedividedintocoal-fired/oil-steamturbine,gas-steamcombinedcycleandinternalcombustionengine.Thermalpowergenerationisthemainformofpowergenerationinthecurrentpowerindustry.Inrecentyears,Chinahasactivelyadvocated"harmony".Theenergydevelopmentmodelof"socialandcirculareconomy"requiresthattheenvironmentalimpactofgeneratingelectricityandtheissueofnon-renewableenergyshouldbetakenintoaccountonthebasisofimprovingthermalpowertechnology.Underthispolicybackground,Chinahasgraduallysteppedupthedevelopmentofnewenergygeneration,includingwindpower,photovoltaicpower,nuclearpower,tidalpower,bio-strawgenerationandotherpowergenerationmodes.Comparedwiththetraditionalthermalpowergeneration,thebiggestadvantageofthisnewenergygenerationisthelesspollutiontotheenvironment.Atpresent,thermalpowerplantsstilloccupyalargeshareoftheelectricitymarket.AccordingtodatareleasedbytheNationalBureauofStatistics,China'stotalelectricitygenerationin2018was6.791.42billionkilowatt-hours,ofwhichthermalpoweraccountedfor73.32percentofthetotalelectricitygeneration,ashighas4.97947trillionkilowatt-hours.However,inrecentyears,thedevelopmentofelectricpowercannotkeeppacewiththepaceofeconomicdevelopment,soitisnecessarytocontinuouslyimprovethethermalpowertechnologytosatisfythedevelopmentofsociety.Thispaperisthedesignof2*300MWthermalpowerplant,accordingtothedesignrequirements,fromtheload,transformerselection,shortcircuitcalculation,electricalequipmentselectionallaspectsofresearch,inthedesignprocessneedtoconsultalargenumberofrelevantinformation,Stepbystepgrasptheabilitytousethedata,sothatIlearnedinthefouryearsoftheactualuseofthecontent.Keywords:powerplant;transf...