30 kA, 5000 V Solid-State Opening Switch for Inductive Energy Storage
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.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1993
- Accession Number
- ADA259763
Entities
People
- Ed E. Bowles
- James B. Cornette
- John M. Rawls
- Mark W. Heyse
- Nolan E. Taconi
- W. G. Homeyer