Abstract: An island is formed when one or more DR units and sets of loads are disconnected from the utility system and remain operational. This paper discuss about the different islanding detection methods used for anti-islanding protection in EPS. Anti-islanding methods are generally classified as passive, active, hybrid and communication based methods. Active methods are more preferred, passive methods are much simpler, communication based methods have perfect performance whereas hybrid methods is a combination of both active and passive methods and have improved performance. Here the advantages and disadvantages of different methods are compared and discussed.
Keywords: Islanding, anti-islanding detection, active, passive, hybrid, communication based