CAPACITOR THERMAL MANAGEMENT IN REP-RATED PULSE FORMING NETWORKS
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The application of high energy density capacitor technology to Pulse Forming Networks (PFN’s) continues to draw great interest in power supply load matching with electric gun applications. The development of these capacitors has historically been driven by requirements associated with single shot experiments,cartridge,or electro-magnetic armature development. As these single shot programs have matured the technology emphasis has shifted. Based upon the projected use of these weapons in real engagement scenarios the power system perspective has been dominated by the specification of a repetition rate or “rep rate”. The mission profiles of these weapon systems places intense thermal requirements on the power system, and in particular, the PFN. This paper addresses the expected operational environment for capacitors in a PFN, and outlines the thermal characteristic tradeoffs necessary for successful operation. Though this paper uses naval surface ships as the notional host for the electric gun and power system, all of the concepts discussed are applicable to other battlefield multi-shot applications.