Abstract |
The broad utilisation of PWM inverter-fed variable speed drive in the industrial sector has quickly
shown radiated and conducted electromagnetic interference (EMI) problems linked to that kind of supply. In an
introduction the different sources and specific couplings of these systems will be presented, then the
experimental bench, which allowed us to study the various propagation ways and to measure the various
impedances of the AC motor will be described. Thus, this paper explains the working out of a model of these
systems. In addition, the identification methods used to achieve the models of the different parts of the system
will be examined. Furthermore SPICE models are proposed. Finally the experimental validation of models is
discussed. |