An Accurate Filtering Technique to Mitigate Transient Decaying DC Offset

@article{Rahmati2014AnAF,
  title={An Accurate Filtering Technique to Mitigate Transient Decaying DC Offset},
  author={Abouzar Rahmati and Reza R. Adhami},
  journal={IEEE Transactions on Power Delivery},
  year={2014},
  volume={29},
  pages={966-968}
}
Phasor estimation, as performed by the discrete Fourier transform (DFT), is adversely affected by the decaying dc offset which occurs following a fault. This letter presents an improved algorithm based on the DFT, hereafter named IDFT, which effectively mitigates the decaying dc component. The IDFT uses the even and odd samples of the estimated phasor. The… CONTINUE READING