On models of pulse power storage and forming lines

Paul D. Smith, Chengxin Qu, Kevin Hong

    Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

    2 Citations (Scopus)

    Abstract

    The design of nanosecond high-current generators is usually one of three schemes: a high voltage microsec- ond pulse voltage generator and pulse forming line; a relatively low-voltage pulse voltage generator and inductive energy storage in vacuum; or the switch- ing of energy into a load with the help of a plasma- erosion opening switch. The use of an inductive stor- age (IS) of energy with an electro-explosive opening switch (EEOS) allows charging of a pulse forming line in about 100 ns; this ensures insulation of high electri- cal strength and reduces overall dimensions and weight of the line. Optimisation of various designs that include an EEOS is usually performed by examining a large number of experimental data for RLC circuit models. We consider a theoretical RLC-circuit model of a particular device, the magnetic-flux compression gen- erator (MCG). The energy conversion in the IS circuit occurs in two stages. Initially, the energy is stored in the inductance, with a partial loss for fuse heating; this stage is simultaneously one of heating and of accumu- lation of magnetic energy. At the second stage, the fuse resistance is determined mainly by the density of expanding metal and grows by a few orders of magni- tude in a short time (explosion stage), when the mag- netic field energy of increasing power is released into the fast-rising resistance of the fuse. We discuss the MCG detonation procedure, how the energy efficiency varies with respect to inductance and the EEOS pa- rameters, and how the energy is released to the load.

    Original languageEnglish
    Title of host publicationPPPS-2007: Pulsed Power and Plasma Science 2007, The 16th IEEE International Pulsed Power Conference and The 34th IEEE International Conference on Plasma Science
    Place of PublicationPiscataway, NJ
    PublisherInstitute of Electrical and Electronics Engineers (IEEE)
    Pages1360-1363
    Number of pages4
    Volume2
    ISBN (Print)1424409144, 9781424409143
    DOIs
    Publication statusPublished - 2007
    EventPPPS-2007: Pulsed Power and Plasma Science 2007, The 16th IEEE International Pulsed Power Conference and The 34th IEEE International Conference on Plasma Science - Albuquerque, NM, United States
    Duration: 17 Jun 200722 Jun 2007

    Other

    OtherPPPS-2007: Pulsed Power and Plasma Science 2007, The 16th IEEE International Pulsed Power Conference and The 34th IEEE International Conference on Plasma Science
    CountryUnited States
    CityAlbuquerque, NM
    Period17/06/0722/06/07

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