Removal of decaying DC in current and voltage signals using a modified Fourier filter algorithm.

Protecting transmission lines frequently involves applying distance relays. Protective relays must filter their inputs to reject unwanted quantities and retain signal quantities of relevant interest. Accuracy and convergent speed of filter algorithm are essential for protective relays. A widely appl...

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Bibliographic Details
Published in:	IEEE Transactions on power delivery 16, 3 (2001).
Main Author:	Sun-Li Yu
Format:	Article
Language:	English
Subjects:	DC current decay. EMTP. Electromagnetic Transients Program. Current signals. Discrete Fourier transform. Distance relays. Filter algorithm. Fundamental frequency components. Higher order harmonics. Integer harmonics. Low pass filter. Modified Fourier filter algorithm. Power transmission line protection. Transient response. Voltage signals.