摘要在本篇论文中，主要针对配电自动化系统，进行了更深层次的细致分析，并对配变终端在全球范围内的广泛应用现状，进行了详细的阐述。基于配变终端及其多样化国家标准，本文最终确定了该配变终端涉及到的相关功能以及诸多技术指标，借鉴当前国内配变终端技术方案，主要将智能型配变终端，进行如下设计：其中，将STM32F429作为核心处理器，并且将电能采集芯片设定为ATT7022E型号，支持数种类型的常见通信方式。其次，在该配变终端中，主要选择分立板卡式结构，即将主控板、输入及其输出控制板等，通过总线板进行连接，并详细论述各模块硬件电路设计，介绍印制电路板设计流程和终端设计时采用的硬件抗干扰技术。最终，本文重点针对电参数测量理论，开展进一步的深层次研究，并且基于快速傅里叶变换，实现相应的谐波计算，以此来设计诸多软件程序。在此期间，本文主要通过模块化设计方法，实现电能数据采集、谐波监测、人机交互、通信等功能。与此同时，本文将主机模式，设定为SPI驱动程序，以此来读取ATT7022E寄存器中存在的各种电能数据；并选择以时间抽取为基础的2-FFT算法，分析电网中2~21次谐波幅值。在开发按键和LCD显示程序基础上，设计出科学完善的LCD多级菜单，并通过实时曲线来诠释程序；此外，本文还设计了GPRS通信程序。计算机监控软件采用376.1协议，使用GRPS模块与配变终端通信，实现对电网设备运行参数和谐波在线监测。关键词：配电自动化配变终端电能采集快速傅里叶变换监控系统AbstractInthispaper,wefocusonthedistributionautomationsystem,andcarryoutadeeperandmoredetailedanalysis,andelaborateonthewideapplicationstatusofthedistributionterminalintheworld.Basedonthedistributionterminalanditsdiversifiednationalstandards,thispaperfinallydeterminestherelatedfunctionsandmanytechnicalindicatorsinvolvedinthedistributionterminal.Basedonthecurrentdomesticdistributionterminaltechnologysolutions,theintelligentdistributionterminalisdesignedasfollows:Amongthem,theSTM32F429isusedasthecoreprocessor,andthepoweracquisitionchipissettotheATT7022Emodel,whichsupportsseveraltypesofcommoncommunicationmethods.Secondly,inthedistributionterminal,themainselectionofthediscreteboardtypestructure,thatis,themaincontrolboard,theinputanditsoutputcontrolboard,etc.,areconnectedthroughthebusboard,andthehardwarecircuitdesignofeachmoduleisdiscussedindetail,andtheprintedcircuitboardisintroduced.Hardwareanti-jammingtechnologyusedindesignflowandterminaldesign.Intheend,thispaperfocusesontheelectricparametermeasurementtheory,carriesoutfurtherin-depthresearch,andimplementsthecorrespondingharmoniccalculationbasedonthefastFouriertransformtodesignmanysoftwareprograms.Inthisperiod,thispapermainlythroughthemodulardesignmethod,toachievepowerdataacquisition,harmonicmonitoring,human-computerinteraction,communicationandotherfunctions.Atthesametime,thispapersetsthehostmodeastheSPIdrivertoreadthevariousenergydataexistingintheATT7022Eregister;andselectsthe2-FFTalgorithmbasedontimeextractiontoanalyzethe2~21inthegrid.Subharmonicamplitude.BasedonthedevelopmentofbuttonandLCDdisplayprogram,thescientificandperfectLCDmulti-levelmenuisdesigned,andtheprogramisinterpretedbyreal-timecurve.Inaddition,theGPRScommunicationprogramisalsodesigned.Thecomputermonitoringsoftwareadoptsthe376.1protocol,andusestheGRPSmoduletocommunicatewiththedistributionterminaltorealizeon-linemonitoringoftheoperatingparametersandharmonicsofthepowergridequipment.KeyWords：DistributionAutomation；DistributionTransformerTerminal；EnergyAcquisition；FFT;TheMonitoringSystem目录1绪论.....................................................11.1研究背景及意义................
