MIQP model and improvement heuristic for power loss minimization in distribution system with network reconfiguration

Karla B. Freitas (), Márcio S. Arantes (), Claudio F. M. Toledo () and Alexandre C. B. Delbem ()
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Karla B. Freitas: University of São Paulo
Márcio S. Arantes: Senai Innovation Institute for Embedded Systems
Claudio F. M. Toledo: University of São Paulo
Alexandre C. B. Delbem: University of São Paulo

Journal of Heuristics, 2020, vol. 26, issue 1, No 4, 59-81

Abstract: Abstract The problem of reconfiguration in electrical power distribution systems deals with changes in the network topology using maneuvers switches. This is an optimization problem where one of the goals is to minimize losses following constraints such as faults isolation, load feeders balancing and voltage profile improvement. The present paper solves such problem by introducing a mixed-integer quadratic program (MIQP) model, which aims to return optimal configurations. An improvement heuristic, based on the solution of MIQP sub models, is also introduced. The MIQP model and improvement heuristic are validated over eight benchmark power systems, and the results achieved are compared against those recently reported by literature. A new set of 10 large sized bus-systems is also defined as replication of a benchmark bus system from literature. The computational results show that our MIQP model and heuristic are able to find optimal configurations for those benchmark systems, as well as to provide good quality solution for the large sized bus-systems within a reduced computational time.

Keywords: Distribution system reconfiguration; Loss reduction; Optimization; Exact methods; Heuristic; Real approach (search for similar items in EconPapers)
Date: 2020
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Citations: View citations in EconPapers (1)

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DOI: 10.1007/s10732-019-09421-0

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