Optimal Dynamic Reconfiguration of Distribution Networks

TL;DR

This paper proposes an optimal dynamic reconfiguration method for distribution networks to reduce operational costs by controlling line switching and load connections, tested on a synthetic IEEE system.

Contribution

It introduces a novel dynamic topology reconfiguration scheme that optimizes line switching based on cost and demand, improving efficiency over traditional static networks.

Findings

Significant cost savings demonstrated in simulations.

Effective control of line switching and load reconnection.

Applicable to synthetic IEEE distribution systems.

Abstract

The aim of distribution networks is to meet their local area power demand with maximum reliability. As the electricity consumption tends to increase every year, limited line thermal capacity can lead to network congestion. Continuous development and upgradation of the distribution network is thus required to meet the energy demand, which poses a significant increase in cost. The objective of this research is to analyze distribution network topologies and introduce a topology reconfiguration scheme based on the cost and demand of electricity. Traditional electrical distribution networks are static and inefficient. To make the network active, an optimal dynamic network topology reconfiguration (DNTR) is proposed to control line switching and reconnect some loads to different substations such that the cost of electricity can be minimized. The proposed DNTR strategy was tested on a synthetic radial distribution network with three substations each connecting to an IEEE 13-bus system. Simulation results demonstrated significant cost saving in daily operations of this distribution system.