400hz航空用逆變電源的研制

1、北京交通大學(xué)碩士學(xué)位論文400Hz航空用逆變電源的研制姓名：李航申請學(xué)位級別：碩士專業(yè)：電力電子與電力傳動指導(dǎo)教師：金新民20070301jE塞窯通厶堂硒堂位論塞△旦!基△￡!ABSTRACTABSrRACr400HzinverterisaspecialpowerssupplyusedintheaeronauticalsystemMoredemandsateproposedforitsspecialapplicationDigitalc

2、ontrol、hirgheffic／ency、highcapabilityaccordswiththedevelopmenttrendofthepowersupplyForthisdemand，papergiveanalyzingandresearchingaboutanoveltopologyofcircuitandmodifiedrepetitivecontrolstratergybasedonDSP240r7AThepaperwi

3、llgiveacomprehensiveintroductionaboutanovelcircuit，thenwefocusoncontrolcircuitdesignandmodifiedrepetitivecontrolstratergyrealizationHighfrequencylinkinverterbelongingtothetypeofdirectcurrentconveflorisusedininvertercircu

4、it，andItismadeupofdirectcurrentconvertorandpoiarityreversalinverterbridgeIthasmanyadvantages，suchasconcisionofcircuitstructure，theformergradeworkingatSPWMmode，thelatergradeworkingatmiddlefrequencyquadratewaveinverter，low

5、voltagestressofinverterbridge’SpowerswitchandachievingZVS，highabilityofresistinginputvoltagedisturbingItisadigitalcontrolsystembasedonDSP—TMS320U砣407AThereatesomedisadvantagessuchastoomanycontrolelements、unfiexible、badco

6、nsistencyDuetoallofthisdisadvantagesofanalogcontrolmodeusedincurrentproducts，theimplementationofdigitatcontrollerisdescribedinthispaporThesystemhasthecharacteristicofsimplecircuitandscantycostofupgrade，accordswiththedeve

7、lopmenttrendofmodernconvertor，itwillhavewideapplicationsInordertogetagoodcontrolstate，amodifiedrepetitivecontrolstratergyisproposedandrealizedinthissystem，anddynamicstateandsteadystatecharacteristicsareimprovedKEYWORDS：D