Control and Performance Analysis for Active Islanding Detection Using q-Axis Control in Renewable Energy Sources Based Microgrid: A Review

In this paper, control and performance of an active islanding detection method have been analyzed using q-axis controller. The detection approach is based on disturbance injection via q-axis controller, which measures the mean absolute frequency variation of the voltage at the point of common coupling (PCC). Islanding identification provided by the q-axis controller method found to be efficient and reliable. The efficacy of the islanding identification method has been tested in the MATLAB/Simulink 18.0(a), for load of quality factor (Qf = 2.5) and analyzed. It offers the several contributions/benefits, viz. the islanding identification time is 180 ms (which is better than several other techniques in the literature), which correctly distinguishes between non-islanding and islanding scenarios, compatible with all international standards.