火電廠給粉系統(tǒng)中的變頻應用與抗干擾.pdf

1、，98；：3S，，類吁：TP273釬緞：巾位代碼學吁⑧√▲東歲，辱碩士學位論文t0422022。03022Sh掃丌dongUniversityMaSter‘sThesiS論正題I|：火電廠給粉系統(tǒng)中的變頻應用與抗干擾f!卉蜘；I郭程妒Ik機械工程指導教師姓亂警業(yè)技術職務一堡苧教授2000年04JJ28山東大學工程碩士學位論文ABSTRACTInviewofthefactthatthebehindhandcontrolmeanstocoa

2、l—providemachinesofpowerplantsaffectthesteadyeconomicalrunningofboilers，analyseit’Scontrolprinciple，objectionandtheproblemsthatoccurredsuchas：controlcomplex，componentexcessiveanddiffuse，frequentfailure，awasteofpower：Desi

3、gnaregulatingsystemtocontrolthecoal—providemachinethatbasedonpowerplantsboilerDCSsystem，thisspeedregulatingsystemhasbeenusedin1—4#boilersandthestatusisfavorableMakinguseofthissystem，wefindmanymattersabouthigh～frequencywa

4、vesjammingsuchas：theburthencablesfromtransducerstoelectromotersoccurredinsulationbreakagefrequently，thewastageoftransformer’Siron—coreincreasedobviously，electromotorsrunningtemperaturerisedobviously，electritypowerquality

5、falledmetamorphosedThemechanismthattransducersjammedandwerejammedbyoutsideareanalyzed，fromshuttingoffsources，cuttingoffchannels，improvinganti—jammingabilitiesandSOonwaysareproposedtoremovethejammingThisdiscoursehasdesign

6、edaspeed—regulatingsystemtocontrolthecoal—providemachinethatbasedonDCSsystem，hassolvedtheproblemoftheoldcontrolmeansaffectingtheboiler’Ssteadyrunning，hasprovidedsteadilyresolventfortheplants’oldregulatingsystemBasedonana

7、lyzing，solvingandsumminguptheexperienceinthefieldoftransducerprojects，analyzeanddiscussthemeansforanti—jammingsuchas：thesettingofEMIfilter，combinedprojectforfiitersandreactors，accurateearth—modeandrationallayingwires，afe