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Shaft vibrations reduction for a PMSM using a DTC speed and position controller

Abstract:

In rotary systems that incorporate elements such as ball bearings and gears, it is common to find operational alterations, due to the aging of these mechanical elements. One of the main effects of such alterations is the shaft's vibration, which interferes with its speed and position. In this work, a parameters reconfiguration analysis for shaft position control in a Permanent Magnet Synchronous Motor (PMSM) is done. A Direct Torque Control (DTC) system that includes the treatment of oscillating perturbations in the motor's shaft is proposed and modeled. This model is simulated in Matlab/Simulink, reconfiguring certain parameters of frequency and amplitude, that typically appear with components aging, obtaining an oscillations reduction.