水電站群經(jīng)濟運行關鍵技術研究與應用

1、河海大學碩士學位論文水電站群經(jīng)濟運行關鍵技術研究與應用姓名：趙星申請學位級別：碩士專業(yè)：水文學及水資源指導教師：鐘平安20060601AbstractWiththeelectricalindustrygraduallyleadingtothecommercialmarket，hydropowerstationcanbeoperatedmoreallodiallyandflexiblyThemainjobofhydropowerstati

2、onishowtomaximizethepowerproductionandenhancethepowerefficiencyunderthepresentsituationofequipmentsandstaffThepaperanalyzestwokindsofcriticaltechniquerespectivelywhicharethemediumandlongrangehydrologicforecastmethodsofre

3、servoirrunoffandreal—timeoptimaloperationmodel，suchasfollows：Partone：AfterreviewingthepresentresearchsituationofmediumandlongrangehydrologicforecastmethodsofreservoirrunoffinChinaandabroad，thepaperputsforwardcycleforecas

4、tingmodelbasedontheWavelettransformThemodelnotonlyutilizesthegoodcharacteristicsofwavelettransform’Sniceanalysescapabilityinthetimescalesandfrequencyscales，butalsoexertstheadvantageofperiodmeansuperpositionmethodInthepap

5、erthemodel’SreliabilityWasprovedbyallidiographicsampleofareservoirintheThreeGorges，indicatingahigherprecisionofthismethodParttwo：Thispaperanalyzedthedegreeofpredictingprecisionaffectedbydecomposingscalecoefficientofwavel

6、etcyclemodelandvariouskindsofreservoirinflowrunoffseriesTheresultsshowedthattheprecisionisrelativelyworsewhenthescalevaluelessthanthree，andtheprecisionCan’tbeimprovedwhilethescalevaluearrivedatsomelevelThereisrelationshi

7、pbetweentheforecastingprecisionofmodelandtheintervaloftimeseriesToolongortooshortlengthoftheintervaloftimeserieswillhaveaneffectontheforecastaccuracyThecontrolareasofreservoirsalsoinfluencetheforecastaccuracyAndtheforeca

8、staccuracyisnotSOwellunderthesituationofsmallcontrolarea，fluctuantrunoffseriesandunsteadyphasesofreservoirsPartthree：TherealtimeoptimaloperationmodelforthemultihydropowerstationisstudiedinthepaperAimingattheoperationpatt

9、emoftheelectricalindustry：alayeredcouplingmodelsystemisestablishedwithdifferenttimeintervalsandregulationperiodsThepracticabilityofthemodelisimprovedbyinsettingonelayermodeltoanotherIthadbeenpracticallyprovedthatoptimalo