Monte Carlo simulation of AC/DC/AC power converter distortion

Probabilistic analyses of AC/DC/AC power converter harmonic and interharmonic distortion are performed by using the Monte Carlo simulation. Starting from previous experiences of some of the authors, an analytical and simplified conversion system model recently proposed is recalled and discussed. A new model of the control system is presented. Different tests considering both mechanical working condition variability and supplying voltage uncertainty demonstrate the improvement obtainable in terms of flexibility and result accuracy in estimating the absorbed current distortion.