Service restoration for unbalanced radial distribution systems with varying loads: solution algorithm

This paper presents a service restoration algorithm for distribution systems which considers the timing of the switch operation sequence and the projected load changes which normally occur during the restoration process. It is imperative to determine a feasible sequence of switch status changes that considers the normal change in serviced load and increases in the outage loads. The algorithm employs unbalanced power flow studies for rigorous constraint checking and produces a feasible sequence of switch operations with respect to anticipated load changes.