INCORPORATING THE DC LOAD FLOW MODEL IN THE DECOMPOSITION-SIMULATION METHOD OF MULTIAREA RELIABILITY EVALUATION

This paper presents a computationally viable means of incorporating th e DC Load Flow model in the decomposition-simulation method of multi-a rea reliability evaluation. The implementation described herein uses a multi-state generation model for each area, a cluster-based multi-are a load model which accommodates load correlation between areas, a line ar programming model with DC Load Flow constraints for determining the partitioning states in the decomposition phase, and a similar LP mode l for determining acceptability of sampled states in the simulation ph ase. Formulations have been described which enhance the speed and accu racy of the method. The implementation has been tested on 3-area, 4-ar ea, and 5-area cases, and the results obtained therefrom have been com pared with those produced by an explicit Monte-Carlo simulation. While the results obtained from both methods are similar, the current metho d has been shown to be considerably faster than explicit simulation.