150 kJ Compact Capacitive Pulsed Power System for an Electrothermal Chemical Gun

A�150�kJcompactcapacitivepulsedpowersystem�(CCPPS)�capableofdelivering� electricalenergyintoanelectrothermalchemical�(ETC)�gunonavehiclehasbeenstudied.�TheCCPPS� providespulsedelectricalenergyintoacapillaryplasmainjectorwhichgeneratesplasmaoftensof� thousands�°Kintemperatureandhasanonlinearresistancedependingonthecurrent.�Thedesign� requirementsoftheCCPPSareasfollows:�themaximumpowerof�250�MW,�thepulsewidthofabout� 0.6�ms,�thevolumeofnomorethan�0.5�cubicmeter,�theefficiencyofenergytransferover�80�%�and� therepetitionrateof�4~5�timesperminute.�TheconstructedCCPPSiscomposedoffour�37.5�kJ� capacitorbankmodulesinparalleltomakeatrapezoidpulseshapeandtosatisfythedesign� requirements.�Eachmoduleisdesignedtoachievehighreliability,�safety,�efficiencyandenergy� densitytoenduresevereoperatingconditions.�TheresultsoftheperformancetestontheCCPPSusing� a�120�mmETCgunaredescribed.� �