Decentralised control through self-healing grids
Ganesh Mane, Samir Parkhe, Saurabh Dhabale · CIRED - Open Access Proceedings Journal · 2017
With implementation of supervisory control and data acquisition system, all indications, status and analogue signals became available with master control centre along with automated controls. The level of automation to be adopted at the substation end was an outcome of various factors like the criticality of load being served, the spread of consumers affected, proximity of utility's crew station, etc. With the aid of network planning software, automation of the substation is so planned that complete restoration and fault isolation would be possible within 10 min. The level of automation and conversely the level of manual operations decide the restoration time. For critical customers like hospitals, water pumping stations, data centres the restoration has to happen in a couple of minutes if not less. This would only be possible if there is minimum or no manual intervention or essentially the system is decentralised for operations. Self-healing grid was thought as the best solution to be deployed for enhanced reliability of the network for critical consumers.