Analysis of an AC fed direct converter for a switched reluctance machine in aerospace applications

This paper proposes an N-phase, AC fed, switched reluctance drive for aerospace applications. The proposed converter is capable of direct AC conversion and eliminates the unreliable DC link capacitor present in conventional DC supply converters. It is shown that, by space vector modulation of output current, control of active and reactive power can be achieved whilst three sinusoidal AC input phase-currents with the required power factor can be synthesized. A comparison between numerically simulated and analytically predicted DC output current ripple is also presented