Control of induction motor drive with PSpice-MATLAB interfacing

Induction motor is most commonly used drive in industrial applications. Many applications require precise speed control of induction motor drive with both steady state as well as dynamic state matching the desired pattern and in all cases immunity to disturbance is desired. In the past induction motors have been used for constant speed only but now due to availability of high performance, low loss semiconductor devices the speed control has become fast, accurate and efficient. Here in this study for more realistic results the voltage source SPWM inverter has been simulated with P-Spice and other blocks have been simulated in MATLAB-Simulink and both the aspects of speed set-point tracking control and regulatory control for load variations have been considered for an induction motor using closed loop control technique. Then using SLPS interfacing the results have been obtained for the two cases. The focus of this study is to consider the effect of characteristic of components used in the nonlinear final control element the inverter.