Abstract
The distribution network is the most exposed part of the electrical power system relative to different abnormal events; therefore, it reports the highest occurrence rates in terms of electrical and mechanical failures. The present project describes a strategy for restoring faulty areas after the occurrence of an abnormal event causing an outage; consequently, the proposed algorithm is not only focused on the maximization of the connected loads but also deals with the minimization of the switching operations by considering technical operational constraints. The remarked study has two stages: The first one finds an initial set of tie-line candidates using the spanning tree technique, while the second stage applies a genetic algorithm to determine the optimal solution considering all the constraints. Three cases studies have been used to test the proposed algorithm, then the simulation and results of IEEE 13, 37 and 94 node feeders depict the effectiveness of the restoration strategy.
Highlights
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The distribution network is considered the last part of the electrical power systems because it distributes the energy to the end users, and the distribution network usually operates in radial topology in order to reduce costs and to simplify the system operation as is presented on Figure 1
80% of power outages on the power system are present in the distribution network [1]
Summary
The distribution network is considered the last part of the electrical power systems because it distributes the energy to the end users, and the distribution network usually operates in radial topology in order to reduce costs and to simplify the system operation as is presented on Figure 1. Distribution systems are planned and constructed by considering tie switches in the open position, which are located in predefined points on the network, to transfer interrupted customers onto another feeder [2]. Distribution systems are designed to have the minimum outages, the irregular nature of abnormal events such as lighting discharges, natural disasters and human errors could cause a service interruption. 80% of power outages on the power system are present in the distribution network [1]. New strategies have been developed to improve the quality of power supply and to guarantee service to customers
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