Towards Faster Branch Outage Simulations Using Simulated Annealing Method and Parallel Programming

Contingency studies are important studies of energy management centers operations. Line outage modelling, on the other hand, is one of the basic steps of post-outage state estimation of an electrical power system. Real time implementation of the problem brings the necessity of using high-speed methods providing reasonable accuracy. This paper presents simulated annealing based solution of the branch outage event which is formulated as a local optimization problem. To speed up the solution procedure, the distributed computing toolbox of Matlab is used as a parallel programming tool. The results of the solutions are compared with of the others and discussed both from the point of accuracy and from the point of solution speed.