This paper presents an efficient algorithm for the loss minimization by automatic sectionalizing switch operation in distribution systems. Ant colony algorithm is a multi-agent system in which the behaviour of each single agent, called artificial ant, is inspired by the behaviour of real ants. Ant colony algorithm is suitable for combinatorial optimization. The proposed methodology with some mo...

This article proposes a framework that uses analytical assessment of reliability to guide the expansion planning power distribution systems (PDS) considering criteria. The allows estimation indices with and without execution projects, thus supporting decision-making process on investments in projects. In reliability, failure rates zones restoration times are calculated from past data interrupti...

This paper presents an effective approach to simultaneous solution of capacitor setting and feeder reconfiguration for power-energy loss reduction and voltage profile enhancement in radial distribution systems. An optimization method using a Genetic Algorithm is proposed to determine the optimal selection size, location, type and number of fixed or switched capacitors as well as the open/closed...

Sectionalizing switches (SSs) and tie lines play essential roles in reducing the duration of customer interruptions electricity distribution networks. The effectiveness such assets is strongly influenced by their placement grid. Operation SSs also inherently interdependent. Due to structural complexities regarding mathematical modeling dependencies, optimization planning operation has typically...

Restoration of distribution system in cold weather and after long interruptions creates cold load pickup problem due to loss of diversity among the loads in residential area. Under such conditions the distribution system load may have to be restored step by step, using sectionalizing switches to prevent overheating of substation transformer. The order in which the sections are restored has a si...

Reduction of loss in a power distribution network is of utmost importance for any electrical utility. Recent years have seen development of various optimization techniques and computer technology which has made it possible to perform accurate analysis of distribution losses. The network reconfiguration of a distribution network is done by changing the status of sectionalizing switches by switch...

Network Feeder Reconfiguration is the process of altering the topological structure of distribution feeders by changing the open/closed status of the tie and sectionalizing switches. In this paper, the Network Reconfiguration problem will be formulated as multi objective optimization problem with equality and inequality constraints. The proposed solution is based on optimization algorithms know...

Contingency conditions in distribution networks create financial losses for different parts of the system including electricity customers, retailers, distributed generation (DG) units, etc. Therefore, protective device allocation methods have been introduced recent years to enhance reliability power system. In this study, a new formulation is proposed find optimal places sectionalizing switches...

A combined heat and power virtual plant (CHP-VPP) can effectively control the distributed resources in an electric–thermal coupling system solve problem of lack flexibility caused by large-scale renewable energy grid connection. Similar to optimal reconfiguration distribution network topology operating switches, district heating is also equipped with tie sectionalizing valves realize adjustment...