ABSTRACT
The PSpice simulation of power converters can be combined with the equivalent circuit of electrical machines to obtain their control characteristics. The machines can be represented in SPICE by a linear or nonlinear magnetic circuit or in a function or table form. The PSpice comprises three separate blocks: the motor field, motor armature, and motor load consisting of inertia J and viscous torque constant B. It has one pulse-width modulation (PWM) generator for the armature control and one PWM generator for the motor field control. PSpice can simulate the equivalent circuit of an induction motor and generator to determine their control characteristics. Parameters such as supply frequency, rotor resistance, and rotor slip can be varied to find the effects of control variables on the performance of motor drives.
