Control strategy of hybrid energy storage system for repetitively electromagnetic launch
In response to the application requirements of repetitively electromagnetic launch,a new hybrid energy storage system was proposed based on"supercapacitor-pulse capacitor"to address the challenge of ultra-high frequency charging from primary energy storage to secondary energy storage in hybrid energy storage systems.Compared with the current"battery-pulse capacitor"hybrid energy storage system,it has advantages of fast charging and long life.While introducing the basic circuit structure and principle of the hybrid energy storage system,the theoretical model of its internal ener-gy transfer process was derived in series charging method.A system simulation model was built based on the Matlab simulation platform and the control strategy for series charging,as well as the charging voltage and current waveforms,was simulated.The impact of circuit impedance on the charging wave-form was quantitatively analyzed.The simulation results show that the proposed hybrid energy stor-age system based on"supercapacitors-pulse capacitors"can achieve a firing rate of tens of rounds per minute,and thus providing an effective energy supply solution for the application of repetitively electromagnetic launch.Moreover,the hybrid energy storage system can achieve precise control of voltage based on series-charging control.
hybrid energy storagesupercapacitorpulsed power supplyconstant-current charging
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