配電變壓器節(jié)能研究

1、華北電力大學(xué)（北京）碩士學(xué)位論文配電變壓器節(jié)能研究姓名：劉洪濤申請學(xué)位級別：碩士專業(yè)：電力系統(tǒng)及其自動化指導(dǎo)教師：張建華20080101華北電力大學(xué)碩士學(xué)位論文摘要在電力系統(tǒng)中，為了使電能傳輸范圍及數(shù)量提高，變壓器得到廣泛應(yīng)用。然而，發(fā)電、輸電、配電及用電各環(huán)節(jié)構(gòu)成的電力系統(tǒng)一般需要3～5次的變壓過程，造成電力系統(tǒng)中總的變壓器容量遠(yuǎn)遠(yuǎn)超出發(fā)電機(jī)的總?cè)萘浚瑥亩a(chǎn)生了嚴(yán)重的損耗。因此，降低變壓器損耗，是一項長期的重要研究課題。本文在綜述了變

2、壓器的參數(shù)、功率損耗的基礎(chǔ)上，對變壓器技術(shù)參數(shù)存在的差異，變壓器的有功損耗率和無功消耗率隨著負(fù)載發(fā)生變化進(jìn)行深入分析。針對配電變壓器負(fù)載波動大，長時間處于輕載和空載運(yùn)行，損耗大的特點。詳細(xì)地分析介紹了配電變壓器的經(jīng)濟(jì)運(yùn)行方式的選擇，經(jīng)濟(jì)運(yùn)行區(qū)間，變壓器的負(fù)載調(diào)整以及變壓器間的負(fù)載經(jīng)濟(jì)分配問題。關(guān)鍵詞：變壓器，經(jīng)濟(jì)運(yùn)行，節(jié)能分析ABSTRACTToenlargethescopeandincreasethetransmissionquant

3、ityofelectricenergyinthepowersystem，thetransformeriswidelyusedHowever3or5timesofvoltagetransformeraregenerallyrequiredonthepowersystemcomposedofgeneration，transmission，distributionandcustomerThen，thetotalcapacityoftransf

4、ormeriSmorethanthegeneration，atthesametime，muchlossisproducedTherefore，howtheoperationmodeoftransformerareselectedandcontrolledie，theeconomicoperationoftransformerimplementedinthepowersystemisveryimportant，whichnotonlysa

5、vestheelectricenergybutalsohasitsseriessignificanceonthedevelopmentofnationaleconomyBasedontheanalysisoftechniquecharacteristic，powerlossofthetransformerthedifferencesamongtheparameter，thenonlinearrelationbetweenthelosso

6、factiveandreactivepowerandtheloadareanalyzedintheoperationofthetransformerthetechnologypeculiarityofdistributiontransformerarecomparedandtheeconomicoperationsoftransformerareresearchedForthetransformerrunninglongerthedis

7、tinctionisbigbetweentheactualparameterandthebandparameterButtheaccurateparameteristhebaseofanalyzingtheeconomicoperationoftransformerSOthemethodofverifyingthetransformer’SparameterisputforwardLiuHongtao(electricalpoweren