Ansari, S. ., and O. H. . Gupta. “A Fault and Islanding Detection Scheme Using Differential Positive Sequence Power Angle for a Microgrid”. Distributed Generation &Amp; Alternative Energy Journal, vol. 37, no. 06, Oct. 2022, pp. 1823-46, doi:10.13052/dgaej2156-3306.3765.