A Hybrid Method for Power System Frequency Estimation

  title={A Hybrid Method for Power System Frequency Estimation},
  author={Jinfeng Ren and Mladen Kezunovic},
  journal={IEEE Transactions on Power Delivery},
Power system frequency is a critical parameter of voltage and current measurements for many applications, such as power quality, monitoring, and protection. This paper presents a hybrid approach for frequency estimation based on Taylor series expansion and Fourier algorithm. The method is derived using a dynamic signal model with varying parameters. The changing envelope of a power signal within an observation data window is approximated with a second-order Taylor series. A Fourier algorithm… CONTINUE READING