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1、绵阳师范学院本科生毕业设计(论文)题目绵师院磨家供配电系统优化改造设计专业电气工程及其自动化院部物理与电子工程学院学号0909040148姓名指导教师答辩时间二0一三年五月工作时间:2012年7月至2013年5月绵师院磨家供配电系统优化改造设计摘要:本次设计的内容是磨家师院供配电系统优化改造设计,这次是为师院供配电主变压器的优化,给学校供给电能。且大学对供电要求较高。所以,必须采用可靠性较高的优化方案。原始材料的负荷计算、短路电流计算及变压器的选择及优化、主接线图的选择。其中,主接线代表了变配电所主体结构,它对电气设备
2、的选择、配电装置的选择、继电保护等都有关系,且将长期影响系统运行的可靠性、安全性、经济性。我参考了供配电系统设计、变配电所设计、工厂供电等许多的书籍,最后对该校供配电系统进行了初步优化改造设计。这次设计为毕业设计,我通过设计改造实践,综合运用所学的知识,培养了独立分析和解决问题的能力,为以后的工作奠定了基础。关键词:变压器;电气主接线;电气设备;继电保护OptimizationofSchoolPowerSupplyUndergraduate:zhanghuanSupervisor:oujianAbstract:This
3、designtopicisthepowersupplyanddistributionsystemforaexperimentalhighschoolofAcity,thissystemisconnectedwiththepubliclineof10kVthroughstep-downtransformers,anddistributeelectricalpowertoexperimentalhighschoolofAcity.TheexperimentalhighschoolofAcityelectricalcharg
4、eisbig,andtheschool’demandofreliabilityofpowersupplyishigh,usingthehighreliablewiringform.Thechargecomputation,short-circuitcurrentcomputation,electricalmainwiringdesign,electricalequipmentchoiceandverification(includingmainvoltagetransformerchoice,circuitbreake
5、randdisconnectingswitchwithcheck-up,conductorchoicewithcheck-up,currenttransformerchoicewithcheck-up,voltagetransformerchoicewithcheck-upandlightningprotectorchoiceandsoon),thedisposalandconfigurationofthetransformersubstationdesign.Betweenthem,theelectricalmain
6、wiringhasrepresentedthemainbodiesstructureofthesubstation,ithasthedecisiverelationsabouttheelectricalequipmentchoice,thepowerdistributionequipmentarrangement,therelayprotection,thedecisionofautomaticdeviceandthecontrolmode,andithaslong-terminfluenceabouttherelia
7、bility,security,flexibilityandefficiencyoftheelectricalpowersystemmovement.Inordertofinishthedesign,Ireferringtothepowersupplyanddistributiondesignstandard,thetransformersubstationdesignstandard,theelectricaldesignstandardofarchitectureandsoon,carryontheprelimin
8、arydesigntothispowersystem.Thisdesignisagraduationdesign.Thepurposeofthisdesignistogiveusachanceofsyntheticalusageoftheknowledgewehavelearned.Besides,itcantrainourabi