SA_Distribution_2010.pdf (686.86 kB)
Annealing Search Based Algorithm for Sectionalizing Switches Placement on Radial Distribution Feeders for Reliability Enhancement
The
selection of an adequate number of switches and their location is a
difficult task in distribution system planning. However, Distribution
feeder sectionalization plays a key role in reliability enhancement,
balancing, loss reduction, and automation of power distribution systems.
The problem of placement of sectionalizing switches in radial
distribution system (RDS) falls into the class of discrete variable
optimization problem with single minimum. This paper presents the use of
simulated annealing (SA) search algorithm in conjunction of previously
published general-search technique to determine the optimal number and
location of sectionalizing switches in RDSs based on techno-economical
feasibility maximization. The problem formulation takes into account
reliability, investment, and maintenance costs. The use of SA search
greatly reduces the number of candidate locations of the sectionalizing
switches with respect to the standalone general search technique.
Optimal placement of sectionalizing switches is determined in a variety
of distribution feeders. The results show that the combined SA-search
technique offers an accurate method for placemat of sectionalizing
switches in distribution systems.