A Software Design for a Computer Based Impedance Relay for Transmission Line Protection

Davall, P. W.; Yeung, Gus

doi:10.1109/tpas.1980.319633

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Linear Modulated Fourier Algorithm1

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1981

1996

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Cited by 16 publications

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“…Because the data window in Eqs. (3) and (4) requires one fundamental frequency cycle, it is called the one-cycle Fourier algorithm. From the above equations, it can be clearly seen that implementation of the algorithm requires a complicated weighting process; in other words, numerous multiply operations are needed to carry out the two correlation functions, sin (Jig) and cos (Jig), as the algorithm is implemented by software programming.…”

Section: Linear Modulated Fourier Algorithmmentioning

confidence: 99%

“…Its application not only covers many protective relays, such as for the distance relay [3,6,8,9,11,12], differential relay [10] and^overcurrent relay [2], but also other fields, e.g., for reactive power measurement [7]. For implementing the Fourier algorithm, the software correlation technique is generally adopted, but its arithmatic operation increases the calculation burden of a processor.…”

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