變壓器經濟運行中相關技術的研究

1、分類號：密級：學號：2006061單位代碼：10407碩士學位論文論文題目:變壓器經濟運行中相關技術的研究變壓器經濟運行中相關技術的研究研究方向電力系統(tǒng)及自動化電力系統(tǒng)及自動化專業(yè)名稱控制理論與控制工程控制理論與控制工程研究生姓名蒙新華蒙新華導師姓名、職稱歐陽偉歐陽偉教授級高工教授級高工20082008年12月2424日江西贛州IIAbstractInpowersystemthelossesoftransfmersareinthemaj

2、ityofalllosses.Transfmer’seconomicoperationplaysanimptantroleinachievingeconomicoperationofpowersystem.Inthepaper，furtherresearcheswerecarriedoutintwopartsoftransfmereconomicaloperation:shttermloadfecasttheswitchonofftim

3、eofoperationtofindthenewwayoftransfmereconomicaloperation.Accuratefecastofelectricalloadisveryimptanttothesecurityofpowereconomy，bothunderfecastoverfecastwouldresultinincreasedoperationalproductioncost.Topowersystemshtte

4、rmloadfecasteismainlyusedtoplanthepowerproductionswitchonoffthepowertransfmerwhichisrunninginoverloadunderload.Sohighaccuracyfecastisveryimptantnotonlytopowersystembutalsotosavingenergyimprovementofenvironment.Fromthisvi

5、ewit’snecessarytoresearchontheadvancedintelligentwayinloadfecast.WiththedatasofasubstationinNanChangtheshttermloadfecastisachievedbasedonthetheyofArtificialNeuralwks(ANN).Thesimulationprovesthatahighaccuracycanbeachieved

6、intheshttermloadfecastbythewayofBPANN.Inpracticesubstation’sloadsareobviouslyvaryingwiththetimeinacertainway.Itisnecessaryfthetransfmerchangeitsoperationwaywhenthelossescanbereduced.Giveattentiontosecurityeconomythepaper

7、establishesamodelbasedonFuzzyConsistentMatrixMethodftheoptimalswitchonofftimeoftransfmerstodecidetheswitchonofftimecrectly.Sothroughthewaywecandecidethetimeoftransfmer’soperationtheoptimalswitchonofftimeearlierly.KeyWd:E