Accession Number : ADA259763


Title :   30 kA, 5000 V Solid-State Opening Switch for Inductive Energy Storage


Descriptive Note : Conference paper


Corporate Author : GENERAL ATOMICS SAN DIEGO CA


Personal Author(s) : Heyse, Mark W ; Cornette, James B ; Taconi, Nolan E ; Bowles, Ed E ; Homeyer, W G ; Rawls, John M


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a259763.pdf


Report Date : Jan 1993


Pagination or Media Count : 9


Abstract : Inductive energy stores have demonstrated higher energy storage densities than capacitive energy stores. A limitation in the use of inductive energy stores has been the availability of adequately rated opening switches. A self-commutated solid-state switch has been developed for use as an opening device for an inductive energy store. A single switch module is rated at 30 kA and 5000 V. The charging pulse lengths for the intended application vary from 0. 1 to 5 seconds. Efficiency and volumetric power density were optimized. The switch topology is a two-stage hybrid consisting of an SCR-FET/SCR-IGBT combination. The switch is designed to charge an inductive energy store and repetitively commutate the current to a railgun load. The first of ten switch modules for a 250 kA switch has been built and successfully tested on a battery test stand. The theory of operation, circuit topology, and test results are given in this paper.


Descriptors :   *ENERGY STORAGE , *SOLID STATE ELECTRONICS , *SWITCHES , TEST AND EVALUATION , DENSITY , SYMPOSIA , ELECTROMAGNETIC GUNS , THEORY , EFFICIENCY , AVAILABILITY , STORES , TEST STANDS , OPENINGS , PAPER , PULSES , LIMITATIONS , OPERATION , POWER , CIRCUITS , STORAGE , LAUNCHERS


Subject Categories : Electrical and Electronic Equipment


Distribution Statement : APPROVED FOR PUBLIC RELEASE