Identification of AC-Machines with LC-Filters by utilising Non-Parametric Models

The following paper presents an identification method of a field oriented controlled drive. Two different configurations are examined one with a permanent magnet synchronous machine and one with an induction machine both equipped with a sinus-filter (LC-filter) between the inverter and the machine. This identification algorithm can be seen as a first step of the complete identification method of the parameters of the mentioned systems. The algorithm is based on the Welch´s method, usually used in the signal processing applications. In this paper only the method for the obtaining the admittance of machine and filter is addressed.