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In this paper, a new Prony's method for frequency estimation is investigated to calculate df/dt. for the rate of change of frequency (ROCOF) protection technique. This algorithm provides accurate and fast frequency calculation for fault detection. System with noise and non-linear load are added during simulation to provide a system similar to real. During non-islanding situation (load adding or adding),...
Due to the increasing levels of distributed generation in the distribution network, the correct operation of loss-of mains protection is of utmost importance. Utilities have voiced their concern relating to the false operation of ROCOF relays, which are one of the most commonly employed loss-of-mains detection method. Whilst 'standard settings' are used, the performances of commercially available...
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