TY - GEN
T1 - Electromagnetic Propulsion System with Rapid Current Discharge Circuit for Enhanced Projectile Acceleration
AU - Sovik, Guy Bar
AU - Halivni, Bar
AU - Evzelman, Michael
AU - Peretz, Mor Mordechai
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022/1/1
Y1 - 2022/1/1
N2 - This paper presents a rapid current discharge circuit for single and multi-stage high current coilgun. The circuit eliminates an undesired braking force, which is developed due to a residual current, when the projectile passes the center point of an energized coil. This is done by rerouting the coil current towards an alternative, quick discharge path, where it is damped to zero. Utilization of the discharge circuit is especially advantageous in multi-stage coilgun systems, as the design of the discharge circuit is done once for the 'worst case scenario' and applied to all the coils. It guarantees a safe operation of all the switches, with minor effect on the system performance. The discharge circuit operation has been validated by an experimental prototype rated for 450V, demonstrating rapid coil current discharge for braking force mitigation.
AB - This paper presents a rapid current discharge circuit for single and multi-stage high current coilgun. The circuit eliminates an undesired braking force, which is developed due to a residual current, when the projectile passes the center point of an energized coil. This is done by rerouting the coil current towards an alternative, quick discharge path, where it is damped to zero. Utilization of the discharge circuit is especially advantageous in multi-stage coilgun systems, as the design of the discharge circuit is done once for the 'worst case scenario' and applied to all the coils. It guarantees a safe operation of all the switches, with minor effect on the system performance. The discharge circuit operation has been validated by an experimental prototype rated for 450V, demonstrating rapid coil current discharge for braking force mitigation.
KW - braking force
KW - coilgun
KW - current discharge circuit
KW - muzzle velocity
UR - http://www.scopus.com/inward/record.url?scp=85135221058&partnerID=8YFLogxK
U2 - 10.1109/COMPEL53829.2022.9829983
DO - 10.1109/COMPEL53829.2022.9829983
M3 - Conference contribution
AN - SCOPUS:85135221058
T3 - Proceedings of the IEEE Workshop on Computers in Power Electronics, COMPEL
BT - 2022 IEEE 23rd Workshop on Control and Modeling for Power Electronics, COMPEL 2022
PB - Institute of Electrical and Electronics Engineers
T2 - 23rd IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2022
Y2 - 20 June 2022 through 23 June 2022
ER -