Intentional Islanding of Active Distribution Networks by GenSets: An Analysis of Technical Constraints and Opportunities

The willingness to improve the security and reliability of power supply end-users, often pushed by prescriptions national regulatory authorities, is bringing considerable challenges for distribution system operators. Islanding a portion public network after fault considered measure mitigate effects service interruptions. This procedure usually carried out counterfeeding grid through generator set (GenSet). Even if this approach widely adopted around world, reenergizing keeping electric island stable not trivial task. In framework, scope paper provide technical guidelines usage GenSets grids in emergency conditions. goal highlight static dynamic limits GenSet operations simplify their exploitation numerical analyses, which have been RMS simulation tool DigSilent PowerFactory software, also aim evaluate constraints case active networks, involve distributed generation implementing regulations according ENTSO-E Italian standards.