Power System Security Enhanced by Post-Contingency Switching and Rescheduling

After introducing the various conccpts of security a point is made that there is a strong need for techniques to correct the disturbed state after the appearance of a fauli, Rescheduling and switching seem to be the appropriate tools. As t o the approach to security enhancement emphasis is put on the feasibility of the solution in contrast to an optimal solution. Thereby computational advantages are possible. Practical aspects of security procedures and computational considerations are given as well as an assessment of the present state-ofthe-art of security enhancement.