Study on Fast Control Algorithm Based on Integrative Sensitivity Analysis

If the trip of overload branch may cause cascading tripping in corresponding section, emergency overload control should be executed to ensure the security of the transmission section and maintain its integrality and transmission capacity. A series of improvements against the conventional sensitivity algorithm are proposed, which include the advance of the integrative sensitivity, the use of equal and opposite quantities in pairs analysis method, and the introduction of heuristic rules. The choice of control node and its quantity ensures that the power flow of overload branch won´t arise and normal branch won´t overload, so the control strategy can availably and quickly eliminate overload. The rapidity and validity of proposed algorithm is verified by a lot of calculation results of a certain real system.