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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Joint reconfiguration of feeders and allocation of capacitor banks in radial distribution systems considering voltage-dependent models

Full text
Author(s):
Home-Ortiz, Juan M. [1] ; Vargas, Renzo [1] ; Macedo, Leonardo H. [1] ; Romero, Ruben [1]
Total Authors: 4
Affiliation:
[1] Sao Paulo State Univ, Ave Brasil 56, BR-15385000 Ilha Solteira, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS; v. 107, p. 298-310, MAY 2019.
Web of Science Citations: 4
Abstract

This paper presents a study about operation planning for radial distribution systems using a mixed-integer second-order cone programming formulation. The proposal consists of a complete model for solving the problems of the reconfiguration of feeders and allocation of capacitor banks simultaneously, with the objective of achieving a minimum overall investment, in both fixed and switchable capacitor banks, and operational costs, related to the cost of energy losses. The approach includes a voltage-dependent load representation, as well as a precise representation of the operation of capacitor banks, which is also voltage dependent. The use of a mixed integer second-order cone programming model guarantees convergence to optimality using existing optimization software. A strategy to reduce the number of candidate nodes of the system for capacitor banks allocation is also presented. Several tests are performed using the 69-node distribution system and a real 2313-node distribution system, demonstrating the effectiveness of the proposal. The results indicate that better solutions can be obtained by performing the simultaneous optimization of the reconfiguration and allocation of capacitor banks than by solving the two problems sequentially, which may even lead to infeasible solutions. It is also verified that both the load and capacitor banks models have an influence on the problem's solution. (AU)

FAPESP's process: 15/21972-6 - Optimization of the operation and planning in transmission and distribution systems
Grantee:Rubén Augusto Romero Lázaro
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 14/23741-9 - Expansion planning of distribution systems of electric power
Grantee:Leonardo Henrique Faria Macedo Possagnolo
Support Opportunities: Scholarships in Brazil - Doctorate