Sudan National Grid Contingency Ranking Through Fuzzy Logic Approach

The effect of the line outage when rest system is stable called contingency study. on may be for single (N-1) or multiple lines (N-m) where N total number and m out service. study essential process in planning, operating control power systems. main thrust studies carried centers to determine steady state effects outages. Large systems require analysis all credible contingence within a very short time so as exercise available corrective action. Generally, continues operate condition considerable duration time, occurrence outage. altered voltage stability margins load buses various conditions are known prior monitor initiate emergency action avoid collapse. This suggests an intelligent technique using fuzzy logic assist ranking which occur system. suggested approach was taken into consideration applied national Sudanese grid.