Efficiency of a Linear Pulse Electromechanical Converter of Induction Type with a Two-section Power Capacitor of Energy

Abstract

Linear pulsed electromechanical converters (LPEC) make it possible to provide a high speed of the actuator on a short active section, and/or powerful power pulses with a slight displacement of it. Recurrence relations are obtained for the electromagnetic, mechanical and thermal parameters of the LPEC with a power circuit using polar capacitive energy storage (CES). Peculiarities of electromechanical processes in LPEC are established when feeding from a two-section CES when operating in high-speed and shock-power modes. When operating in a high-speed mode, the LPEC with a two-cell CES provides increased electromechanical performance, but these results in a stronger heating of the inductor and armature. When working in shock-power mode in comparison with the speed mode, the amplitude of electrodynamics forces increases by 3.53 times, and their momentum by 5.27 times. Reduction of the capacity of the primary section of the CES while maintaining the overall energy of the CES provides for an increase in the electromechanical and power performance of the LPEC. The experimental characteristics of the LPEC have the same regularities as the calculated characteristics, and the experimental and calculated values agree to within 5–7%.