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Optimal branch exchange for feeder reconfiguration in distribution networks

Peng, Qiuyu and Low, Steven H. (2013) Optimal branch exchange for feeder reconfiguration in distribution networks. In: 2013 IEEE 52nd Annual Conference on Decision and Control. IEEE , Piscataway, NJ, pp. 2960-2965. ISBN 978-1-4673-5714-2.

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The feeder reconfiguration problem chooses the on/off status of the switches in a distribution network in order to minimize a certain cost such as power loss. It is a mixed integer nonlinear program and hence hard to solve. A popular heuristic search consists of repeated application of branch exchange, where some loads are transferred from one feeder to another feeder while maintaining the radial structure of the network, until no load transfer can further reduce the cost. Optimizing each branch exchange step is itself a mixed integer nonlinear program. In this paper we propose an efficient algorithm for optimizing a branch exchange step. It uses an AC power flow model and is based on the recently developed convex relaxation of optimal power flow. We provide a bound on the gap between the optimal cost and that of our solution. We prove that our algorithm is optimal when the voltage magnitudes are the same at all buses. We illustrate the effectiveness of our algorithm through the simulation of real-world distribution feeders.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Low, Steven H.0000-0001-6476-3048
Additional Information:© 2013 IEEE. This work was supported by NSF NetSE grant CNS 091104, ARPA-E grant DE-AR0000226, Southern California Edison, National Science Council of Taiwan, R.O.C. grant NSC 101-3113-P-008-001 and Resnick Institute.
Group:Resnick Sustainability Institute
Funding AgencyGrant Number
Southern California EdisonUNSPECIFIED
National Science Council (Taipei)NSC 101-3113-P-008-001
Resnick Sustainability InstituteUNSPECIFIED
Subject Keywords:Substations, Load modeling, Network topology, Topology, Optimization, Mathematical model, Integrated circuit modeling
Record Number:CaltechAUTHORS:20170810-131659189
Persistent URL:
Official Citation:Q. Peng and S. H. Low, "Optimal branch exchange for feeder reconfiguration in distribution networks," 52nd IEEE Conference on Decision and Control, Firenze, 2013, pp. 2960-2965. doi: 10.1109/CDC.2013.6760333 URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:80185
Deposited By: Linqi Guo
Deposited On:10 Aug 2017 22:49
Last Modified:15 Nov 2021 17:53

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