• Pratik B Panchal

This paper presents an algorithm for measuring mean frequency in two machine system during power swings, which applies to sampled current signals in transmission lines with two sinusoidal components. Modulation of voltage and current signals with low-frequency components during power swing creates difficulty in accurate measurement of the frequency. The algorithm is based on rigorous mathematical deducing and recombines itself with Taylor series expansions. Computation requirements are modest and technique has been implemented on the test signal. The method is tested on two bus system using MATLAB. As an application of this method, the accurate frequency is used for the finding out the accurate frequency during three phase fault

Distance relay, power swing, unbalance fault, frequency measurement

"Accurate Measurement of Mean Frequency During Power Swing ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 6, page no.692-696, June-2018, Available :http://www.jetir.org/papers/JETIR1806788.pdf

"Accurate Measurement of Mean Frequency During Power Swing ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 6, page no. pp692-696, June-2018, Available at : http://www.jetir.org/papers/JETIR1806788.pdf