Passive Islanding Detection and Load Shedding Techniques in Micro Grids: A Brief Review

The passive islanding detection methodologies for the integrated DG approach are the primary subject of this study. Combined with fossil fuel sources and utilized in a cumulative manner, renewable energy generation and the grid are helping to satisfy the growing load demand. Unintentional islanding is the primary challenge of renewable arrangement coordination with grid connectivity. In the event of energy system islanding, the DG will detach from the main grid and begin supplying electricity to locally linked loads. According to many interconnections of DG systems, islanding will be recognized within 2 s using the techniques now in use for isolating the DG hardware from the grid. ‘Remote controlling procedures’ refer to islanding techniques that operate from the utility side, whereas ‘local controlling procedures’ are those that are implemented on the DG side. The methods for detecting passive islanding and the characteristics by which they may be evaluated are the topic of this study. The study provides a thorough discussion of the pros and cons, energy concerns, Zone of Non-Detection, islanding detection of balanced state, and merits of many different passive islanding detection approaches. For researchers developing advanced islanding detection systems, this paper’s thorough explanation of Passive islanding strategies is a valuable resource.