Automatic Identification of a PMSM Drive Equipped with an Output LC-Filter

The following paper presents a fully automatic method of the identification of a field oriented controlled drive. The examined system consists of a permanent magnet synchronous machine PMSM, a sinus-filter (LC-filter) and an inverter. The advantage of the utilization of the filter in such systems lies in the decrease of the current and torque ripple, besides it features lower EMI production. The voltage stress on the windings of the machine is also lower. Despite the increased order of the system, the necessary number of sensors is not higher than in an application without filter. The identification of the system allows the utilization of the presented method in a wide range of industrial applications