Research on Sensitivity Analysis Method of Action Behavior about Security and Stability Control System

With the sustaining expansion of power grid and the increasingly complex operation mode, the safe and stable operation of power system is becoming more and more important. Security and stability control system(SSCS) is the second-defence-line of power system, its action and behavior results directly affect whether the power system can maintain safe and stable operation under the condition of failure. This paper studies the sensitivity evaluation method of the action behavior of SSCS. Firstly, the sensitive factors affecting the action behavior of SSCS are introduced. Secondly, the sensitivity analysis method based on the grey relational degree is introduced.