变压器的温度监控系统设计---毕业设计

I摘要设计以凌阳单片机SPCE0601A为核心，并配以适当的外围芯片与接口电路实现变压器的温度监控。系统采用多组风机对油浸风冷式变压器降温，变压器油温由预埋在变压器油中的铂电阻采集，将采集到的油温在就地和远端实时显示，温度的显示由LED数码管实现。当控制变压器的油温大于上限温度值时，投入全部风机；当油温低于下限温度值时，停止全部风机的运行；变压器的油温介于上限值和下限值之间时,风机按工艺要求运行。可编程RF无线收发器芯片CC1000实现主从机之间的数据传输，使中心控制室及时掌握变压器风机的运行状况，实现远程温度监控。风机出现故障时，相应的发光二极管点亮,并且报警电路发出报警信号。系统要具备完善的过压、过载、缺相检测和保护功能。关键词：SPCE061A;无线通信;变压器;温度监控AbstractThisdesignisbasedontheSunplusMCUSPCE0601A,andgotogetherwiththeappropriateoutercirclechipandinterfaceelectriccircuittocarryoutsuperviseandcontroloiltemperaturetransformeronthespotandatthelong-distance.Thissystemadoptsseveralgroupelectromotortocooldownthetemperatureofthetransformer.Thetemperatureiscollectedbythetemperaturetransduceroftheplatinumresistance,Thetemperaturethatisgatheredwilldisplayatrightonthespotandatthelong-distance.themanifestationofthetemperatureisrealizedbytheLEDfigurestube.Whentheoiltemperatureofthecontroltransformerisbiggerthantheupperlimittemperatureenactmented,throwinallseveralgroupelectromotortorun;Butwhentheoiltemperatureislowintheleasttemperaturevalue,stopallmovementsofseveralgroupelectromotor.Whensystemcirculatednormally,eachthreesetsofautosthrewinmovementbyturninsixsetsofthesixgroupelectromotor.TheprogrammableRFwirelesstransceiverchipCC1000carriesoutalordtoIIdeliverfromthedatabetweenthemainsinglechipandcontronlroom,makingthecentercontrolroommastertheconditionofthetransformerintime,carryingoutsuperviseandcontrolofthelong-distance.whenthewindmotorappearedtobreakdown,LEDgaveoutlight,andgiveoutalarm.Meanwhile,protectioncircuit(includingvoltage,overloading,lackingelectricalwire)hasbeendesignedforsystem.KeyWords：SPCE061A；WirelessCommunication;Transformer;TemperatureMonitoringandControlI目录绪论.............................................错误!未定义书签。第1章设计任务和要求..............................................11.1设计任务...........................................................................................................11.2设计实现的功能...............................................................................................11.3主要技术参数与性能指标................................................................................2第2章系统方案的设计..............................................32.1方案的提出.......................................................................................................32.2方案的论证.......................................................................................................42.3系统工作原理...................................................................................................6第3章硬件电路设计................................................93.1从机设计...........................................................................................................93.2主电路设计.....................................................................................................123.2.1风机的选型............................................................................................133.2.2低压断路器的选择和应用.....................................................................143.3自动与手动控制电路的设计..........................................................................163.4驱动电路的设计.............................................................................................173.5LED显示电路的设计...................................................................................183.6无线数传通讯电路的设计..............................................................................203.7保护电路的设计.............................................................................................233.7.1过压检测与保护....................................................................................243.7.2过载检测与保护....................................................................................273.7.3缺相检测与保护....................................................................................313.8故障显示.........................................................................................................343.9报警电路.........................................................................................................373.10远传开关的设计...........................................................................................373.11电源的设计...................................................................................................38第4章软件设计...................................................414.1软件结构与软件设计思想..............................................................................414.2程序流程图.....................................................................................................47II第五章设计总结...................................................51参考文献...........................................................52英文资料及其翻译...................................................53致谢.............................................................74附录.............................................................75附录1元器件明细表...........................................................................................75附录2程序清单...................................................................................................79III绪论