someone wrote FDZ as a false detection zone and others mentioned it as a fault detection zone. please provide any information, material regarding the calculation of FDZ for an islanding detection technique
Please go through this article, this will clear your query regarding Fault Detection Zone;
https://ieeexplore.ieee.org/abstract/document/7161293
Fault (false) detection zone includes non-islanding conditions wherein an employed islanding detection methodology detects wrongly as islanding. For instance, the voltage of a weak grid may violate the standard range during a large capacitor switching, tripping the voltage relay.
So, an islanding detection signal should be 1) triggered during islanding events accurately (minimum NDZ) and 2) should not trip in non-islanding events (minimum FDZ).
Thank you so much sir, for spending your valuable time on my query.@Reza Bakhshi-Jafarabadi
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