Models for conductor size selection in Single Wire Earth Return distribution networks
2013 (English)In: IEEE AFRICON 2013, IEEE conference proceedings, 2013, 6757773- p.Conference paper (Refereed)
The use of the ground as the current return path often presents planning and operational challenges in power distribution networks. This study presents optimization-based models for the optimal selection of conductor sizes in Single Wire Earth Return (SWER) power distribution networks. By using mixed integer non-linear programming (MINLP), models are developed for both branch-wise and primary-lateral feeder selections from a discrete set of overhead conductor sizes. The models are based on a mathematical formulation of the SWER line, where the objective function is to minimize fixed and variable costs subject to constraints specific to SWER power flow. Load growth over different time periods is considered. The practical application is tested using a case study extracted from an existing SWER distribution line in Namibia. The results were consistent for different network operating scenarios.
Place, publisher, year, edition, pages
IEEE conference proceedings, 2013. 6757773- p.
Electric network analysis, Functions, Nonlinear programming, Optimization, Distribution lines, Mathematical formulation, Mixed-integer nonlinear programming, Objective functions, Operational challenges, Overhead conductors, Power distribution network, Single wire earth returns, Wire
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-147282DOI: 10.1109/AFRCON.2013.6757773ISI: 000352082700244ScopusID: 2-s2.0-84897423716ISBN: 978-146735940-5OAI: oai:DiVA.org:kth-147282DiVA: diva2:729832
IEEE AFRICON 2013; Pointe-Aux-Piments; Mauritius; 9 September 2013 through 12 September 2013
QC 201406262014-06-262014-06-252015-12-08Bibliographically approved