A mathematical model for a magnetic-amplifier reactor core

In the analysis and design of self-saturating magnetic amplifiers, the flux-resetting characteristics of the saturable reactors must be known either analytically or graphically. In the past, the reactor flux-resetting characteristic has been represented by a single, unique relation between flux and resetting magnetomotive force.1-3 Such a restrictive reactor representation has limited usefulness because changes in operating conditions such as control voltage waveform, relative control circuit impedance level, and supply frequency cause considerable change in the flux-resetting characteristic.