汽轮发电机定子绕组换位方式与环流损耗分析计算

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1、哈尔滨理工大学工学硕士学位论文CirculatingCurrentLossinStatorWindingofTurbo--generatorAbstractStatorbarisoneofthekeycomponentsoftheturbo-generator．Withanincreasingcapacityofturbo-generator,saturationdegreeisincreased，leakagemagneticdistributionthroughoutthebarismorecomplex，additionallossesa

2、reontheincrease，whichrespectivelyaffectthepowergenerationefficiencyandsafeoperationofthegenerator．Inthisdissertation，numericalmethodforelectromagneticparametersoftheturbo-generatorstatorbarofeachpartisadopted，byanalyzingcomparisonofdifferentprojects，relationshipsanddistribut

3、ionlawsbetweentheDouble-Roebeltranspositionbarandcirculatingcurrentlossesofturbo-generatorarefound，whichprovideappropriatetechnicalsupportandtheoreticalbasisforoptimizationofbardesign．Firstly,anumericalmethodforthecirculatingcurrentlossofstatorbartranspositioninaturbo-genera

4、torisproposed，theequivalentmodelofDouble—Roebelstatorbarstrandtranspositionisconstructedtoachieveaneffectivemodelingandsimplifysubdivision，strandtranspositiontypeandinvoluteconnectiontypeofendwindingaresimulated，correspondingelectromagneticparametersofbarbynumericalcalculati

5、onsaledrawn．Secondly,theinfluenceisanalyzed，whichaffectscirculatingcurrentlossesofDouble-RoWelbarbydifferentstylesofweaving，therelationshipsbetweentranspositiontypesanddistributionsoffluxdensityinslotcentefline，currentofstrands，circulatingcurrentlossesarefound．Finally,theeff

6、ectsofcirculatingcurrentlossesinstatorbarbyseveralspecialstructuresareanalyzed，correspondingchangesintherelationshipbetweenthemareidentified．Keywordsturbo-generator,circulatingcurrentloss，numericalcalculation，transposition．II．哈尔滨理工大学工学硕士学位论文目录摘要⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯

7、IAbstract⋯．．⋯⋯⋯⋯⋯．．．⋯⋯⋯．⋯．⋯．⋯⋯⋯⋯⋯．．⋯．⋯⋯．⋯．⋯．⋯⋯．⋯⋯⋯．⋯⋯．⋯．．⋯．．⋯⋯．．．II第1章绪论⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．11．1课题背景和研究意义⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯11．2国内外研究现状分析⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯31．2．1汽轮发电机定子绕组换位的研究历程⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．31．2．2环流损耗研究的经历阶段及研究方法⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．41．3本文研究的主要内容⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯

8、⋯⋯⋯5第2章线棒换位三维建模及数值计算方法⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯62．1物理模型⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯72．1