| Abstract |
The authors propose a concept extension of control components for power converters complex chains generally associated with operating components. To begin with, three hierarchically control levels are defined corresponding respectively to power switching elements of the converter, near and long distance control networks. Then, state Petri nets without conflicts are used for modelling each control compenent and for describing dialogues with three associated operating parts. Finally, the obtained model is used to structurize an overall numerical model which allows the observation of the system's operations working out. In the present case, a conversion chain is chosen which includes a frequency changer associated with a three-phase inverter to feed an induction machine. |
