Efficient Detection of Islanding for Self-Healing Grid-A Case Study in Indian Grid

The Indian power grid is a huge interconnected system both in terms of power capacity and geographical spread. The probability of a relatively insignificant event leading to cascading failures is always there in such systems. The Government of India is working extensively on making the Indian power grid smart. An important feature of smart grid is self-healing ability. Self-healing in the case of smart grid implies that the grid is more aware of its operating state and resilient against cascading failures leading to blackouts. Efficient detection of island formation and controlled islanding can be utilized to impart this feature in the grid. In the present work a case study is presented on a section of the Indian power grid for efficient detection of island formation by using a topological algorithm called one line remaining algorithm.