葛洲壩500kV直流換流站諧波測試與分析.pdf

1、分類號密級UDC彳屈火擎工程碩士學(xué)位論文題目：葛洲壩500kV直流換流站諧波測試與分析論文作者：羅晉軍指導(dǎo)教師姓名、職稱：廖瑞金教授兼職導(dǎo)師姓名、職稱、工作單位：何懼熊高工四川達(dá)州電業(yè)局申請學(xué)位級別：工程碩士工程領(lǐng)域：電氣工程學(xué)位授予單位：重慶大學(xué)論文提交日期：2003年10月10日答辯日期：2003年11月28日答辯委員會主席：張敏論文評閱人：張敏李劍2003年11月26日，L似重慶大學(xué)工程碩士學(xué)位論文ABSTRACTABSTRACr

2、Withtheapplicationofthenonlinearelectricalelectroniccomponentsineveryindustrialdepartment，therearemoreandmorenon—linearloads，whichleadtothefactthatseriousdistortiontakesplaceinthewaveformofthevoltageandthecurrentinthepow

3、ersystemThereforetheharmonicwaveispollutedmoreandmoreserious，andgettheconcernoftheeverycountryintheworldBecauseharmonicwavesendangerequipmentsinthepowersystem，interferethenormalfunctionofcommunicationsystem，socarryingont

4、estingandanalysisoftheharmonicwaveseemsespeciallyimportantThistextproceedswithdefinitionoftheinharmonywave，outlinedescribethenatureofhightimesofharmonicwaveinpowersystemThemainmechanism，thedangerofharmonicwaveandthereaso

5、noftheproduceoftheharmonicwavearedescribedinthispapenAtfirst，throughthestudyonoperationprincipleofGezhoubalaythefoundationfortheharmonicwavetestjobLeamandstudythebasicprinciplesofharmonicwavesmeasurementatpresentsystemat

6、icallyandpointoutthepresentmeasurementinharmonyprinciplemainlytocarryonFastFourierTransform(FFT)，thusexamineoutthevalueofharmonicwaveofeverytimeAndintroducethemethodofharmonicwavetest，pointoutthattheharmonicwavetesterint

7、histextisthedirectlydigitalsyntheticmethodThenanalyzeagroupofthedatameasuredinGezhoubaAtlast，carryonharmonicwavemeasurementfortherelevantcircuitsofGezhouba，analyzerelevantharmonicwaveindex，anddrawsomeimportantconclusions

8、，suchasthevoltageharmonicsofphaseBismoreseriousthantheharmonicsofphaseAandphaseC，thevoltageharmonicssatisfytheneedofpowersystem，thecurrentharmonicsofGezhoubaistooseriousTheaboveimportantconclusionishelpfulforthefuturehar