用于电除尘器的直流叠加高频脉冲电源的研究

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1、摘传板大很升用使冲控PID控制，串口数据通信，火花处理等任务以及参数设定界面等程序的编写。本文最后对脉冲电路进行了仿真，验证了设计的合理可行性和正确性，得到了纳秒级上升沿脉冲。关键字：静电除尘；船级脉冲；反电晕；ARM分类号：TM832一。dust，thedustsedimentintheanodeisverydi伍culttoreleasethecharge，tocausethedangerofbackcorona，andtheefficiencyofDCpowersupplyislow．Alar

2、genumberofstudieshaveshownthatpulsedpowersupplyusedinelectrostaticprecipitatordustcarlin．easeefficiency,reduceenergyconsumptionandcanbea900ddealofthehi．ghresistivitydust．TllispaperdescribesaDCsuperposedhigh-frequencypulsedpowersupply,whichaddstothepuls

3、eofnanosecondrisingedgeonthebasisoftheDCbiasvoltage．Analyzetheworkingprincipleandthemaincomponentofthepowersupply．AnddesignofapowercontrolsystembasedonARM7S3C44BOX．DCvoltageandcurrentaresampled，useofthedigitalPIDcontrollerfordosedloopcontrolofDCcircuit

4、s，SOthattheDCvoltagehastoachievethecoronavoltage；thepulsecircuitUSeSopen-loopcontr01．WhenchangetheARM7controlleroutputPWMwavefrequency,thepulsefrequencyisalsochange。Softwaredesignisbasedon心

5、OSIIreal—timeoperatingsystemand、C

6、。GUIgmphicalUSerplatforms，in

7、cludingthetasksofthePIDcontrol，serialdatacommunication，sparkprocessingandinterfaceparameterssetting．Finally,thesimulationofthepulsecircuittOverifythefeasibilityandcorrectnessofthedesignhasbeenrisingnanosecondpulse．KEYWORDS：ElectrostaticPrecipitation,na

8、nosecondrisingedgepulse，anti-corona,ARM，CLASSN0：TM832一-，目录中文摘要⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯vABSTRACT⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．vii目录⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ixl!j者论⋯．⋯．．．．．⋯⋯．．⋯⋯．⋯⋯．．．．⋯⋯．．⋯．⋯．⋯⋯．⋯⋯．．．．⋯⋯．．．⋯．⋯⋯⋯⋯．⋯．⋯．．

9、⋯⋯⋯．．．⋯．⋯．．11．1课题背景⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．11．2静电除尘电源技术的发展历史⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．11．3静电除尘的主要供电方式⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯21．3．1晶闸管相控调压整流供电⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯21．3．2间歇供电⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯31．3．3恒流供电⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯。41．4论文的主要工作⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯

10、⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯42静电除尘的原理及其控制方式⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯。72．1静电除尘器的工作原理⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．72．1．1静电除尘的基本过程⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯72．1．2静电除尘的基本参数⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯。82．2反电晕现象及防止措施⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯92．2．1反电晕现象⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．92．2．2防止反电