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Multi-objective feeder reconfiguration by distribution management system

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4 Author(s)
Roytelman, I. ; Empros Power Syst. Control, Siemens Energy & Autom. Inc., Brooklyn Park, MN, USA ; Melnik, V. ; Lee, S.S.H. ; Lugtu, R.L.

Feeder reconfiguration for use by distribution management systems is discussed in this paper. Multiple objectives are proposed to reflect realistic operating environments while achieving all benefits from feeder reconfiguration. The multiple objectives considered are minimization of power losses, load balancing among supply transformers, minimization of the worst voltage drop, minimization of service interruption frequency, and balanced service of important customers for enhanced service reliability. The objective function containing five different objectives are optimized subject to capacity and protection device constraints. The overall solution approach is a two-stage process. In the first stage, a suboptimal solution is found by analyzing the mesh distribution system in which all open switches are simulated to be closed. Applying special power flow analyses to this mesh network, a radial distribution system is determined as an intermediate solution. In the second stage, this solution is continuously improved by the branch exchange scheme. Special topology models are also developed to accelerate the search procedure. Use of the algorithm is illustrated by numerical examples

Published in:

Power Industry Computer Application Conference, 1995. Conference Proceedings., 1995 IEEE

Date of Conference:

7-12 May 1995