Andrew C. Reck

Simulation of a motor control using a unique triac model

Computer-aided engineering (CAE) is an effective tool for facilitating and expediting an engineering design project. This paper summarizes the successful use of computer simulation for aiding the engineering design of an application of an induction motor using solid-state devices (triacs) to produce and control forward-reverse motor operation. This agitation action is obtained by alternately connecting each phase of a two-phase capacitor induction motor to the supply source by triggering alternate triacs into conduction. This transient operation imposes severe requirements on the triac transient properties; these properties were modeled in considerable detail for the successful simulation. >