Evaluation of active anti-islanding methods based on the ABNT NBR IEC 62116 and IEEE STD 929-2000 standards

In this paper two active anti-islanding methods are evaluated and compared according to the ABNT NBR 62116 and IEEE STD 929-2000 standards. These standards specify voltage and frequency trip time settings and trip magnitudes. The first method is the active frequency drift with positive feedback and the second one is the active frequency jump that is based on phase-locked loop perturbation. The latter distorted less the power injected into the utility grid and had a better time response to detect grid faults. Besides, it was able to obey the two standards, different from the first one that was able to follow just the second standard.