Reliability Assessment of Unbalanced Distribution Systems using Sequential Montecarlo Simulation

This paper explains the causes of the unbalance present in many power distribution systems and how single and double phase outages do not affect the entire load served as it is assumed in the traditional balanced analysis. A methodology based on the sequential Monte Carlo simulation technique for the long term reliability assessment of these kinds of systems is presented and by means of an example it is shown how the predicted reliability indices of an unbalanced system will be higher if its assessment is performed using balanced analysis