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Factors Influencing the Efficiency of an Induction Coilgun

Sirola, CS and Ram, R and Joy Thomas, M (2019) Factors Influencing the Efficiency of an Induction Coilgun. In: 2019 IEEE Pulsed Power and Plasma Science, PPPS 2019, 23 June 2019, United States.

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Official URL: https://dx.doi.org/10.1109/PPPS34859.2019.9009720


In this paper, the results of a study on the parameters which influence the efficiency of an induction coilgun are presented. Efficiency in the present context is defined as the ratio of final kinetic energy (\frac12mv²) of the projectile to the total input electrical energy (\frac12CV²), where m is the mass of the projectile, ν is the muzzle velocity of the projectile, C is the capacitance used and V is the capacitor charging voltage. Analysis is done by varying one of the parameters of the coilgun among the following parameters, viz., aspect ratio (length/diameter) of the projectile, inductance and resistance of the coil, capacitance and charging voltage of the pulsed power supply, keeping all the other parameters fixed and hence the variation in the efficiency of the system is studied. These results would be helpful for the optimal design of an induction coilgun i.e. selecting the aspect ratio of the projectile, inductance of the coil, optimum capacitance and its charging voltage for a given input electrical energy. The variation in current and the rate of change of current (\fracdidt) through the coil are also analyzed keeping the total input electrical energy constant and varying the capacitance and its charging voltage. These results would aid in the optimum choice of the parameters of the pulsed power supply source of an induction coilgun. © 2019 IEEE.

Item Type: Conference Paper
Publication: IEEE International Pulsed Power Conference
Publisher: Institute of Electrical and Electronics Engineers Inc.
Additional Information: cited By 0; Conference of 2019 IEEE Pulsed Power and Plasma Science, PPPS 2019 ; Conference Date: 23 June 2019 Through 29 June 2019; Conference Code:158155
Keywords: Aspect ratio; Electric power systems; Inductance; Kinetic energy; Kinetics; Projectiles, Capacitor charging; Charging voltage; Electrical energy; Muzzle velocity; Optimal design; Optimum capacitances; Pulsed power supply; Rate of change of currents, Capacitance
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Date Deposited: 19 Aug 2020 05:23
Last Modified: 19 Aug 2020 05:23
URI: http://eprints.iisc.ac.in/id/eprint/65012

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