Effectiveness of Anti-islanding Schemes Following A Faulty Recloser Operation

Islanding detection is one of the technical issues, which has gained prominence with the increasing penetration of distributed photovoltaic generation. Various anti-islanding algorithms have been proposed in literature, which use either passive or active methods to detect an island formation. However, all the anti-islanding studies done so far, assume a proper breaker or recloser operation, which results in a complete disconnection from the grid. This paper studies the effectiveness of two active anti-islanding schemes following a faulty recloser operation, when a single phase or two phases fail to disconnect. Results and the findings of a simulation study performed on a realistic test distribution system are presented.