Computation of reliability in radial distribution network based on recursive algorithm

This paper proposes an algorithm to evaluate the reliability of complex radial distribution network by compounding recursive algorithm and method of equivalents. According to the recursiveness of distribution network, this new algorithm first disposes the distribution network and stores the data in the form of a left-child and right-sibling binary tree, then makes reasonable equivalents of reliability for the distribution network subfeeders based on the recursive traversal of the tree, and thus simplifies the distribution network in form. During the ergodic process, reliability indices for all the individual load points and for the system are obtained by recursively applying computational formula to reliability. The effectiveness of this approach is proved by examples.