桥路型高温超导限流器的研究

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1、中国科学院电工研究所博士后学位论文桥路型高温超导限流器的研究姓名：张志丰申请学位级别：博士后专业：电气工程指导教师：肖立业20060201AbstractBridgetypehigh—Tcsuperconductingfaultcurrentlimiter(HTSFCL)isdeterminedastheresearchobjectinthispaper,inwhichthelimitingprincipleisexploredtheoreticallyandkindsofcircuittopologiesofbridgetypeHTSFCLareestablished．A3-phasebri

2、dgetypeHTSFCLprototypeisdesignedinlab．bywhichshort-circuitfaultlimitingexperimentshavebeendonesuccessfullyTheconclusionsareasfollows：ThreekindsoftopologiesofbridgetypeHTSFCL⋯mutual．inductortype，LCresonancetypeandelectricdischargetypeHTSFCLwithdifferentstructuresanddifferentoperationprinciples，havebe

3、endesigned，bywhichtheoperatingprinciplesareanalyzed，andsimulationmodelsareestablished，andthemainparametersareoptimized．ThecontrolmeansofnovelbridgetypeHTSFCL．namelyresistor-assistanttypeHTSFCL，arepresented，inwhichthecontrollablelimitingelementiSnotasuperconductingcoil．butaresistor．Withdifferentfeedb

4、ackcurrentsorvoltages，thecontrolalgorithm，suchassinglevaluerelativecontrolalgorithm，hysteresiscontrolalgorithmandpredictedrelativecontrolalgorithm，areestablishedtomeetthedemandsofvariousvolumeHTSFCL．ThefurtherresearchiSabouttherelationshipbetweencontrollableregulationfunctionandself-adjustmentfuncti

5、onoftheHTSFCL．TheHTSFCLprototypehasbeendesignedandmanufacturedbothinhardwareandSOftwareinourlab．whichintegratesthefunctionsofbothshort—currentfaulttriggeringandfaultlimiting．TheHTSFCLiscomposedofpowerelectricalsubsystem，detectionsubsystem，controller,high—Tcsuperconductingcoilsandcryogenicsubsystem．A

6、saresult，theHTSFCLismorecontrollableandoperabletouse．Basedonthedesignedparametersofthepropotype，thedesignrationalityhasbeenconfirmedbysimulationresults，whichincludetherelationshipbetweensuperconductingcoilinductanceandtheTHDofthelinecurrent．therelationshipbetweenthefaultresponsetimeandthefirstpeakof

7、faultlinecurrent，andtherelationshipbetweenthevalueoflimitingresistorandthefaultcurrentinsteadystate．ExperimentsoftheHTSFCLhavebeendonesuccessfullyAsinglefaultlimitingtestingcircuitisdesignedtovalidate