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1、學(xué)士學(xué)位論文110kV電力變壓器結(jié)構(gòu)與電磁計(jì)算摘要電力變壓器是電力系統(tǒng)中的一種重要設(shè)備,其發(fā)展趨勢(shì)是提高可靠性、節(jié)省材料、低損耗水平,明顯縮短產(chǎn)品的設(shè)計(jì)周期、降低生產(chǎn)成本和提高產(chǎn)品的質(zhì)量,從而增強(qiáng)產(chǎn)品的市場(chǎng)競(jìng)爭(zhēng)力,取得顯著的社會(huì)經(jīng)濟(jì)效益,因此電力變壓器的電磁計(jì)算就顯得尤為重要。本文在參考大量文獻(xiàn)的基礎(chǔ)上,分析了我國(guó)電力變壓器行業(yè)的現(xiàn)狀和發(fā)展趨勢(shì),闡述了電力變壓器的基本原理和基本結(jié)構(gòu)特征,根據(jù)電力變壓器設(shè)計(jì)的基本思路,按照目前變壓器設(shè)計(jì)的一般方法,完成了一臺(tái)40000kVA/110kV有載調(diào)壓電力變壓器的計(jì)算工作,主要內(nèi)
2、容包括阻抗電壓、空載、負(fù)載損耗、溫升、短路電動(dòng)力等的計(jì)算。電磁計(jì)算結(jié)果滿足國(guó)家標(biāo)準(zhǔn)和技術(shù)參數(shù)的要求。本文還針對(duì)電力變壓器的空載損耗、負(fù)載損耗、噪音、溫升、局放、滲漏及抗短能力,介紹了如何改進(jìn)變壓器的結(jié)構(gòu)以降低空載損耗和負(fù)載損耗、噪音、局放及提高抗短路能力,并達(dá)到防滲漏的效果。關(guān)鍵詞電力變壓器;電磁計(jì)算;結(jié)構(gòu)改進(jìn)-I-學(xué)士學(xué)位論文TheStructureandElectromagneticalCalculationof110kVPowerTransformerAbstractThefurtherdevelopmentof
3、powertransformer,whichisanimportantequipmentinpowersystem,istoimprovetheliability,savematerialandreduceloss,obviouslyshortenproductdesignperiod,reducethecost,improveproductquality,strengthenthemarketcompetitivenessandgaindistincteconomicperformance.Therefore,the
4、electromagneticalcalculationofpowertransformerisespeciallyimportant.Basedontheinformationandextensiveliterature,thisarticleanalyzesthepresentbasicprincipleandbasicstructureofpowertransformer,andalso,thepresentsituationandthedevelopmentofourcountry’spowertransfor
5、merindustry.Accordingtothegeneraldesigningmethodandthebasicdesigningideasofpowertransformer,awholeelectromagneticcalculationofa40000kVA/110kVOLTCpowertransformerhasbeencompletedinthearticle.Theresultsoftheelectromagneticcalculationmeettherequirementsofnationalst
6、andardsandtechnicalparameters,includingthemaincontentsofimpedancevoltage,loadandno-loadloss,temperaturerise,short-circuitelectromagneticalforceandsoon.AsdevelopmentofChinesetransformermanufacturetechnology,themanufacturetechniqueof110kVdomesticpowertransformeris
7、beingclosetoorreachtotheadvancedlevelofforeigntransformer.Thisarticleintroduceshowtoimprovethestructureofthetransformerinordertoreduceno-loadloss,loadloss,noise,PD,themagneticleakageandtoimprovetheanti-short-circuitcapacity.Keywordspowertransformer;electromagnet
8、iccalculation;structureimprovement不-I-學(xué)士學(xué)位論文目錄摘要IAbstractII第1章緒論31.1課題背景31.1.1課題的國(guó)內(nèi)外研究現(xiàn)狀與趨勢(shì)31.2變壓器的工作原理與結(jié)構(gòu)41.2.1變壓器的基本工作原理41.2.2電力變壓器基本結(jié)構(gòu)5第2章電力變壓器電磁計(jì)算82.1技術(shù)條件:82.2額定電