SFPS8-120000-220变压器电磁计算本科论文.doc

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1、SFPS8-120000/220变压器电磁计算摘要大型电力变压器是电力系统中主要和关键设备之一。随着电力工业的迅速发展，其容量越来越大、电压等级越来越高、结构尺寸越来越大，而其设计和制造的好坏是直接影响其运行质量和经济效益的关键所在。因此电力变压器的电磁计算就显得尤为重要。若能在设计和制造上提出更加合理和可行的方案，解决以往经验方法解决不了的问题，对变压器的结构进行优化，则将会具有重要的技术和经济意义。本文对220kV大型电力变压器电磁计算相关的基础知识进行了介绍，并对国内外电力变压器的发展趋势进行了分析，并介绍了电力变压器电磁计算的一般问题，

2、并以220kV大型电力变压器为例详尽地介绍了变压器各参数计算的过程，如铁芯及空载参数计算，绕组及负载损耗计算，短路阻抗计算，温升计算等。关键词：电力变压器；电磁计算；温升计算ElectromagneticcalculationofSFPS8-120000/220transformerAbstractLarge-scaleelectricpowertransformersareimportantpartofthepowersystem.Withthedevelopmentofpowersystem,thecapacityandvoltagegra

3、deoftransformerbecomeshigh.Thenthequalityofitsdesignandmanufacturingbecometheconcernofdesignoftransformers.Sotheelectromagneticcalculationofpowertransformerisespeciallyimportant.Ifitcanprovidemorereasonableandviableprojectindesign,itresolvestheformerexperiencemethodwhichcan'

4、tresolveofproblem,andstrengthenthemarketcompetitivenessandgaindistincteconomicperformance.Thispaperintroducestheelectromagneticcalculationof220kVlargepowertransformer,andmakesanalysisandforecastonthedevelopingtrendsoflargepowertransformersathomeandabroad,andintroducesthecalc

5、ulationprincipleandstructureofpowertransformer.Themaincontentincludestheproblemofelectromagneticcalculation.Andtake220kVpowertransformerasanexample,calculatestheprocessofelectromagneticparameter.Calculationofcoreandemptyparameter,calculationofwindingandloadloss,calculationof

6、short-circuitimpedance,temperaturecalculationandsoon.Keywords：powertransformer；electromagneticcalculation;temperaturecalculation目录第1章绪论......................................................................................................-1-1.1我国电力变压器发展及发展趋势..................

7、...................................-1-1.2变压器行业规模和市场结构分析.....................................................-2-1.3变压器变压器行业市场需求分析.....................................................-4-1.4变压器的结构组成.............................................................................-4-

8、1.5本课题的目的和意义...............................................................