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1中文题目：基于DSP带同步锁相的逆变器控制系统设计外文题目：ADesignofPhaseLockedInversionControlSystemBasedonDSP毕业设计（论文）共××页（其中：外文文献及译文××页）图纸共×张完成日期20××年×月答辩日期20××年×月摘要宋体四号居中2UPS(UninterruptiblePowerSystem)是一种电力设备，当电网供电出现紧急故障时：UPS逆变电源可以利用蓄电池为负载提供应急供电。同时UPS也具有改善电网电力质量的作用。我国UPS市场需求巨大，每年UPS的市场销售量大约在80亿元人民币。除了电信、金融等行业对UPS的需求居高不下之外，制造业、交通业、能源业对于UPS的需求量呈现上升趋势。本文介绍了UPS逆变电源的组成，分析了各部分的作用及其工作原理，研究了实现UPS逆变控制的关键技术。在此基础上，设计了基于DSP的UPS逆变控制系统，提出了一套融合软硬件的适用于UPS逆变电源的数字化精准控制方案。UPS逆变电源的控制系统的硬件电路设计采用TI公司的32位TMS320LF2407A作为逆变控制信号和驱动控制信号产生的主芯片。本文在AlbumDesigner软件环境下绘制电路原理图和PCB电路板。在电路板设计中加入了各种抗干扰措施，提升了系统的稳定性。在完成UPS逆变电源控制系统的软硬件设计的基础上，本文将控制系统和UPS整机进行联合调试。调试结果表明，在本文设计的UPS逆变电源控制系统的协调下，可以使得UPS整机正常工作，IGBT驱动信号和可控硅控制信号正常，输出信号可以精确地跟踪市电频率，并且保持相位一致，同时输出电压抑制了输入电压中的高次谐波，改善了电网的质量。关键词:正弦脉宽调制SPWM；TMS320LF2407A；电力电子系统；逆变器；数字化精准控制1ABSTRACTUPS(UninterruptedPowerSupply)isanelectricalequipmentthatcanprovideemergentpowersupplybyuseofstoragebatterywhenpowerfailure.Inaddition,UPScanimprovethequalityofmainspowersupply.OurcountryhaslargedemandforUPS.TheannualsalesofUPSreachto8billionyuan.Thedemandiscontinuouslylargeinthefieldoftelecommunicationandfinanceandbeginstoriseinthefieldofmanufacturing,transportationandenergysource.ThisdissertationintroducesthestructureofUPS,analyzesthefunctionandoperationprincipleofeachpartofUPSandstudiesthekeytechniqueforUPSinversioncontrol.TheUPSinversioncontrolsystembasedonDSPisputforward.Thesystemiscombinedwithhardwaredesignandsoftwaredesignandissuitablefordigitalaccuratecontrol.IntermsofthehardwaredesignofUPSinversioncontrolsystem,TMS320LF2407A,the32-bitDSPmanufacturedbyTI,isusedtocontrolinverterandgeneratedrivesignalforIGBTandSCR.EPM240T100C,thehighperformanceandlowpowerconsumptionmanufacturedbyAltera,isusedforinterfaceextensionandphaseshiftofdrivesignal.TheschematicsandprintedcircuitboardaredesignedintheenvironmentofAltiumDesigner.Anti-interferencemethodsareadoptedtoenhancesystemstability.Afterhardwaredesignandsoftwaredesign,thecontrolboardisjoint-testedwithUPS.TheresultshowsthatunderthecoordinationofUPSinversioncontrolsystemdesignedinthisdissertation,IGBTdrivesignalandSCRcontrolsignalcanbecorrectlygeneratedsothatUPScanworknormally.Theoutputsignalcanaccuratelytracethefrequencyofmainspowersupply,keepingthephaseconsistent.What'smore,theoutputsignalimprovesthequalityofmainspowersupplybyreducinghighharmonicwave.KEYWORD:SPWM；TMS320LF2407A；DigitalAccurateControl；Large-PowerInverter；PowerElectronicsSystem1目录0前言..................................................................................................................................................................11绪论..................................................................................................................................................................21.1选题的背景和意义...............................................................................................................................21.2UPS逆变电源的分类............................................................................................................................21.2.1被动后备式(PassiveStandby)....................................................................................................31.2.2在线互动式(Line-Interactive).....................................................................................................41.2.3双转换式(DoubleConversion)..................................................................................................51.3UPS逆变电源的发展趋势和数字化控制的意义.............................................................................51.3.1采用DSP设计电路的优越性体现............................................................................................61.4本章小结........................................................................................................................................72在线式UPS的系统结构.................................................................................................................................12.1在线式UPS系统框图..................................................................................................................................12.2在线式UPS系统组成...........................................................................................................................12.3在线式UPS的工作原理......................................................................................................................32.4本章小结................................................................................................................................................43功率因数校正..................................................................................................................................................13.1概述.....................................................................................................................................................13.1.1谐波的产生及危害..................................................................................................................13.1.2功率因数的定义...............................................................................................