Abstract
There have been many studies for automatic failure restoration problem of power system. This paper proposes a new method of determining restorative operation process using dynamic programming. In this paper, a branch on-off operation is corresponding to a multi-stage decision of DP method, and the operation is carried out on every stage from initial failure system to final restorative system. Moreover, a power system configuration is formularized by laws of Kirch-Hoffs.
For a practical use of this method, it is necessary to accelerate calculation time. Therefore, two measures are taken as follows, 1) priority branch method for selecting an operation branch. 2) state reduction method for reducing system states with lower estimation evaluated by the objective function on every stage. By using this method on a model system, the effectiveness of this algorithm has been demonstrated.
