Self-tuning of Kalman filters for digital protection applications

@article{Macias2005SelftuningOK,
  title={Self-tuning of Kalman filters for digital protection applications},
  author={J. A. Macias and A. G. Exposito},
  journal={2005 IEEE Russia Power Tech},
  year={2005},
  pages={1-4}
}
This paper addresses the problem of tuning Kalman filters so that they can properly track signal fluctuations in digital relaying applications. A method for self-tuning of the model error covariance is presented and tested. The proposed iterative algorithm quickly adapts to sudden changes of the input signal, even in the presence of other harmonics and DC… CONTINUE READING