| Abstract |
In this paper, the authors present the concept of a universal numerical control designed for an asynchronous drive fed by a pulse width modulated (PWM) inverter. The proposed command structure is hierarchical, and is equipped with two operating levels. After having presented the complete process model, the authors proceed to its linearisation and its reduction. Different dynamic flux control laws are proposed according to the methods of flux reconstitution. Finally, the control of mechanical machine mode is examinated, permitting torque, speed and position control. The different results obtained from the simulation and the experimental realization permit verification of the validity of the proposed digital controls. |
