分布式發(fā)電系統(tǒng)儲能優(yōu)化配置.pdf

1、華北電力大學(北京)碩士學位論文分布式發(fā)電系統(tǒng)儲能優(yōu)化配置姓名：田軍申請學位級別：碩士專業(yè)：電氣工程；電力系統(tǒng)及其自動化指導教師：夏瑞華201103華北電力大學碩十學位論文AbstractTheessentialreasonsofproblemscausedbygrid—connecteddistributedgeneration(DG)aretheintermittentandrandompowerWithfastpowercompe

2、nsationandflexiblefourquadrantoperation，theenergystoragecannotonlypromotetheapplicationofrenewableenergybutalsomaintainthesecurityofpowersystemCurrentlythecapacityoptimizationofenergystoragewasmostlyfromtheeconomicpointo

3、fvieworthecumulativeforecastingerrorFewscholarshaveresearchedtherelationshipbetweenpredictionandsmoothedpowerofDGtooptimizethecapacityandcontrolthecharging／dischargingofdifferenttypeofenergystorageincoordinationcontr01Fi

4、rstofall，thepowerpredictionmodelbasedonleastsquaresuppoftvectormachine(LSSVM)isconstructedbyfactorswhichimpactthepoweroutputSecondlyinsteadofthetraditionalcapacityconstructioncase，thesmoothedcasethatusedenergystoragetoco

5、mpensatethedifferencebetweenactualandsmoothedpowerisconsideredOntheonehand，inordertocompensatetheforecastingerroranewmethodthattakingtheenergystoragetocompensatethedifferencebetweenactualandpredictionpowerhasbeenproposed

6、Ontheotherhandinordertomlmmlzetherandomness，anewsmoothedmethodthatusingtheramprateofclearskyphotovoltaic(PV)powertosmooththeactualpowerhasalsobeenputforwardFurthermore，comb／nationtheadvantagesofsupercapacitorandbatteryan

7、ewcontrolstrategybasedonpowerpredictiontogenerateconferencesignalofenergystorageoutputhasbeendesigned，whichtakingintoaccountthestateofcharge(SOC)ofthebatteryandvoltagelimitsofsupercapacitorFinallythealgorithmofLSSVMisrea

8、lizedinMATLABandDGpowerforecastingerrorareminimizedwithenergystorageThecontrollerofahybridenergystoragesystemandcapacityoptimizationcaseisconfirmedtobeeffectivebythesimulationresultsinEMTDC／PSCADKeywords：Distributedgener