Digital Twin Based Identification of Passive Parameters for PMSM-Based Generating Unit by an Extended Kalman Filter for Wind Off-Shore Applications

This paper proposes a digital twin model for the power conversion system for wind off-shore applications. The digital twin is used to identify the electrical parameters of the permanent magnet synchronous generator (PMSG) and the three-phase boost rectifier. The digital twin model is based on the Extended Kalman Filter (EKF) for online identification of the PMSG phase resistance and synchronous inductance, and the DC-link capacitance at the output of the boost rectifier. Hardware-in-the-loop tests have verified the effectiveness of the EKF digital twinning on the power conversion system.