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This paper proposes a method to estimate the stator winding temperature of permanent magnet synchronous motor (PMSM) driven by direct torque control (DTC) strategy, where the stator resistance is used as a direct indicator of the temperature. In this method, the quantitative relationship between the dc current offset and the corresponding changes in torque is derived. The dc current offset is generated...
This paper proposes an estimation approach based on Kalman filtering for determining the temperature of the stator windings of a Permanent Magnet Synchronous Motor (PMSM). Two schemes based on the Extended Kalman Filter (EKF) and the Unscented Kalman Filter (UKF) are investigated. The estimation is performed in a closed loop currents control scheme for a surface mounted PMSM. The temperature behavior...
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