ONLINE DYNAMIC PREVENTIVE CONTROL - AN ALGORITHM FOR TRANSIENT SECURITY DISPATCH

This paper describes the philosophy and the implementation of a preven tive control algorithm for application in dynamic security assessment. The methodology consists in an optimization procedure where: the obje ctive function takes into account economic costs, inequality constrain ts confine the trajectory of the system In a practical domain of the s tate space and equality constraints derive from the discretization of the differential-algebraic equations of the power system sparse repres entation. The algorithm has been implemented to reschedule the generat ion in order to guarantee transient stability. The feasibility of the approach is shown through tests on a realistic sized test network.