Parameter Identification of 7th Order Model of Synchronous Generator by EKF

Parameter Identification of 7th Order Model of Synchronous Generator by EKF

Synchronous generators play a very important role in the stability of power systems. A valid model for synchronous generators is essential for a reliable analysis ofstability and dynamic performance. Accurate generator modelling allows for more precise calculations of power system control and stability limits. System identification instate space form, particularly when physical parameters of a system are required, has certain advantages. In this paper,nonlinear parameter estimation of synchronous generators using Extended Kalman Filter is addressed. The proposed method is applied to identify Seventh order model of asynchronous generator parameters. In this study, the rotor speed, the instantaneous values of the stator current and theterminal voltage and the instantaneous value of the excitation current are considered as the measurable outputs of the synchronous generator.