時(shí)域有限差分法及其在開關(guān)電源電磁輻射計(jì)算中的應(yīng)用.pdf

1、浙江大學(xué)碩士學(xué)位論文時(shí)域有限差分法及其在開關(guān)電源電磁輻射計(jì)算中的應(yīng)用姓名：王愛國申請學(xué)位級(jí)別：碩士專業(yè)：電工理論與新技術(shù)指導(dǎo)教師：倪光正楊仕友2002.2.1一塑堅(jiān)奎蘭雯主蘭垡堡莖AbstractThisthesiscontributedtothecomprehensivestudyoftheFinite—Di疏reneeTime—Domain(FDTD)methodanditsapplicationtothenumericalcomp

2、utationofradiatedelectromagneticfieldsinswitchedmodepowersuppliesTheworkincludesmainlythreeparts：thestudyontheperformanceofPMLabsorbingboundaryconditionappliedtOpseudolowfrequencyelectromagneticproblems；thevalidationofth

3、eFDTDmethodwithPMLabsorbingboundaryconditionsandthecorrespondingcomputersoftwarebasedonthenumericalstudyoftheelectromagneticfieldofanelectricdipoleantenna，anditsapplicationtothenumericalcomputationofradiatedelectromagnet

4、icfieldsinswitchedmodepowersupplies；thedevelopmentofanimprovedalternatingdirectionimplicitfinite—differencetimedomainmethodInthestudyOiltheperformancesofPMLabsorbingboundaryconditions，thethesisimproved，respectivelythe2Da

5、nd3DFDTDmethodswithPMLabsorbingboundarycondition，andconstructedthecorrespondingcomputersoftwareBymeansofnumericalcomputations，thethesisinvestigatedthestabilityandtheabsorbingpropertyofthePMLabsorbingboundaryconditionInad

6、dition，thethesisalsogivesalotofnumericaIresultsandsomepracficalconclusionstOfacilitatetheapplicationoftheproposedFDTDmethodInthefollowingsectionthethesisdemonstratedtherobustnessoftheproposedmethodinthecomputationofradia

7、tedelectromagneticfieldsofswitchedmodepowersuppliesbymeansofanumericalstudyOntheelectromagneticfieldsofanelectricdipole2tntennaToshowtheapplicabilityoftheproposedalgorithmforengineeringproblems，thethesiscomputedtheradiat

8、edelectromagneticfieldofaswitchedmodepowersupplywithspecialattentionontheanalysisoftheEMlintheelectroniccontrolcircultDifferentnumericalresultsandtwovaluableguidelinesaredrawnToovercomethedrawbackoftheFDTDmethodincomputi

9、ngthepseudolow行equenCvelectromagneticproblems，inthefinal，basedOilcomprehensivestudyonthepresentADIFDTDmethodthethesisproposedanimproved2DADIFDTDmethodThenumericalresultsshowthattheproposedmethodismoreunconditionalstablea