Abstract
This paper presents a computationally efficient algorithm to find the locations and required reactive power injections for a minimum number of reactive power compensators under a set of considered contingencies. The problem is formulated and solved in two stages. The first stage solves the security-constrained DC optimal power flow problem to find the active power generation dispatch. Then, the second stage determines the best locations for a minimum number of reactive power compensators to assist the reactive power generation dispatch in order to maintain bus voltages within limits and to ensure voltage stability under the considered set of contingencies. Effectiveness and computational performance of the proposed method are illustrated by extensive simulations carried out on PEGASE 2869-bus system.
Published Version
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