Fault Signature Sensitivity based on Residues for Interturn Short Circuit Fault in PMSMS

The need for more electrical drive systems requires reliable fault detection systems. In this paper, a novel analytical methodology is presented to evaluate the variables' fault signatures due to an Interturn Short Circuit (ITSC) fault in a Permanent Magnet Synchronous Machine (PMSM) drive system. The proposed method is based on a residue analysis and allows for the exploration of new variables as candidates for enhancing fault detection, such as the shaft torque. A Global Sensitivity Analysis (GSA) is performed to evaluate the correlations between the variables' fault signatures and the system parameters.