Main criteria in interconnection of generating units to islanded grids, Salalah IPP2 case study

In each islanded grids, a number of technical rules and recommendations need to be followed in operation ensuring smooth operation of the system and to enable grid disturbances to be controlled. These technical rules and recommendations, however, give the operators the option of going beyond mere compliance with these minimum requirements, implementing more stringent requirements or even defining these in details. In this paper, main criteria and rules, which should be considered in interconnection power plants to the islanded grids, are reviewed. One of the criteria, that is a main concern of system planners and operators, is frequency deviation limits and required spinning reserve to diminish it. In this paper, as a case study, technical criteria in Power evacuation system of IPP¹2 power plant to Salalah grid (DPC, Oman) are discussed.