전열화학포용 2.4MJ 펄스 파워 전원의 제어기 설계

The Controller Design of a 2.4MJ Pulse Power Supply for a Electro-Thermal-Chemical Gun

  • 발행 : 2006.12.01

초록

The key issues in high power, high energy applications such as electromagnetic launchers include safety, reliability, flexibility, efficiency, compactness, and cost. To explore some of the issues, a control scheme for a large current wave-forming was designed, built and experimentally verified using a 2.4MJ pulse power system (PPS). The PPS was made up of eight capacitors bank unit, each containing six capacitors connected in parallel. Therefore there were 48 capacitors in total, with ratings of 22kV and 50kJ each. Each unit is charged through a charging switch that is operated by air pressure. For discharging each unit has a triggered vacuum switch (TVS) with ratings of 200kA and 250kV. Hence, flexibility of a large current wave-forming can be obtained by controlling the charging voltage and the discharging times. The whole control system includes a personal computer(PC), RS232 and RS485 pseudo converter, electric/optical signal converters and eight 80C196KC micro-controller based capacitor-bank module(CBM) controllers. Hence, the PC based controller can set the capacitor charging voltages and the TVS trigger timings of each CBM controller for the current wave-forming. It also monitors and records the system status data. We illustrated that our control scheme was able to generate the large current pulse flexibly and safely by experiments. The our control scheme minimize the use of optical cables without reducing EMI noise immunity and reliability, this is resulting in cost reduction. Also, the reliability was increased by isolating ground doubly, it reduced drastically the interference of the large voltage pulse induced by the large current pulse. This paper contains the complete control scheme and details of each subsystem unit.

키워드

참고문헌

  1. '제3차 전열추진 기술 세미나', 국방과학연구소. 1999. 10.28
  2. '제4차 전열추진 기술 세미나', 국방과학연구소. 1999. 10. 28
  3. Y. S. Jin at al 'Design and Performance of a 300kJ Pulsed Power Module for ETC Application', IEEE EML2000 https://doi.org/10.1109/20.911813
  4. Gary Katulka at al, 'A 4-MJ Mobile Pulse Power Facility for Electrothermal-Chemical (ETC) Gun Application', U.S Army Research Lab. Oct. 1995
  5. B. Augsburger at al, 'DRA 500kJ Multi-Module Capacitor Bank', IEEE Transaction on Magnetics., Vol., 31. no. 1 Jan. 1995., pp10-14 https://doi.org/10.1109/20.364737
  6. B. Augsburger at al, 'Royal Ordnance 2.4 MJ MultiModule Capacitor Bank', IEEE Transaction on Magnetics., Vol., 31. no. 1 Jan. 1995., pp16-21 https://doi.org/10.1109/20.364736
  7. 'CCDS Power Supply Operations & Maintenance Manual', Maxwell Energy Products, Apr. 1998