Abstract

This paper describes a calculation strategy that allows determining the optimal number and placement of sectionalizing switches in MV radial distribution networks, in correspondence to technical, regulatory and economical aspects. A formulation that takes into account the investment, maintenance and power interruption costs has been developed, seeking for a reduction in total costs while taking care of the regulatory and technical aspects. A multicriteria optimization procedure allows incorporating in the calculating process various quality indicators which can be either global or individual indexes. This way of formulation makes the proposal flexible as well as applicable to allow including aspects that were not considered in previous papers. The solution methodology is mainly based on dynamic programming, fuzzy logic, heuristics and economic analysis techniques. Given its flexibility, the proposed tool is easily adapted to real distribution systems, by considering the individual requirements of each network. The solutions obtained in simulations are oriented to help decision-making for the operator.

Highlights

  • This paper describes a calculation strategy that allows determining the optimal number and placement of sectionalizing switches in MV radial distribution networks, in correspondence to technical, regulatory and economical aspects

  • The solution methodology is mainly based on dynamic programming, fuzzy logic, heuristics and economic analysis techniques

  • The proposed tool is adapted to real distribution systems, by considering the individual requirements of each network

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Summary

Introduction

One of the critical requirements of any distribution system is that related to the service-quality and reliability requirements demanded by their users. The distribution utilities must make significant investments to meet these service-quality and reliability standards. The selection of a number of sectionalizing switches and their correct placement in the MV distribution network is a planning task that has not been solved entirely. Resort to their own practical experience, using the information from their operators and clients and adopting solution methods that are hardly optimal. The purpose of the present work is to develop a calculus strategy that allows determining the placement and optimal number of sectionalizing switches in an MV radial distribution network, by linking the technical, regulatory and economic aspects

State-of-the-Art
General Formulation
Fuzzy Decision and the Sectionalizing Device Allocation
Application
Case 1
Findings
Case 2

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