Optimization of Recloser Placement in DG-Enhanced Distribution Networks Using a Multi-objective Optimization Approach

Fabian Lopez and Andrés Pantoja

2017/04/25

Abstrac

Efficient placement of protective devices in electric power distribution networks is necessary in order to achieve a reliable system and provide continuous power supply to customers as long as possible. The islanded operation with distributed generation (DG) provides a way to reduce the energy not supplied (ENS) but the placement of protections, such as reclosers, is necessary in order to allow the system to achieve this mode of operation. This paper presents a multi-objective optimization method to place efficiently normally closed reclosers by using a constrained non-dominated sorting genetic algorithm (C-NSGA-II) to reduce SAIDI, ENS and investment costs. A co-simulation approach is used in such a way that the power system is modelled in PowerFactory, while MATLAB is used to implement the C-NSGA-II. Then, a distribution test network is probed in simulation cases with different DG penetration levels, showing the efficiency of the proposed optimization method. Results show the importance of protective devices and DG in enhancing system reliability and reducing the energy not supplied to customers.

Published in: Renewable Energy & Power Quality Journal (RE&PQJ, Nº. 15)
Pages: 316-321 Date of Publication: 2017/04/25
ISSN: 2172-038X Date of Current Version:
REF: 306-17 Issue Date: April 2017
DOI:10.24084/repqj15.306 Publisher: EA4EPQ

Authors and affiliations

Fabian Lopez and Andrés Pantoja
Department of Electronics. Universidad de Nariño, Pasto, Colombia

Key word

Co-simulation, distributed generation, distribution systems reliability, multi-objective optimization, protective systems.

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