Investigation of the Dynamic Properties of a Drive with an Induction Motor and Current Inverter.

A nonlinear state representation of the controlled drive with an induction machine supplied from an indirect frequency inverter with a dc current intermediate circuit is deduced. The chosen control condition makes possible the consumption of minimum current under static conditions. The solution of the state representation of the system is numerically performed using a predictor-corrector method of the second order. The program was implemented on the calculator Hewlett-Packard 983A. The constructed state representation of the system is relatively simple but describes correctly the dynamic properties of the real drive which is proved by the presented graphical results.