Inclusion of voltage drop and feeder loading constraints in the evaluation of reliability indices for radial distribution networks

A model that includes voltage drop and feeder loading constraints in the evaluation of reliability indices for radial distribution networks is proposed. The model estimates the nodal voltages using a compensation technique and a simplified version of the power summation load flow for radial networks. The main advantage of this models over existing models is that the post-restoration voltages can be evaluated without modifying the data structure used to evaluate the reliability indices. Results obtained on a large-scale distribution network demonstrate that the proposed methodology can assess the impact of network constraints on reliability indices with an acceptable accuracy whilst incurring a small computation cost