Optimal Voltage Sags Monitoring Considering Different Loading Profiles in Distribution Systems

T. R. Kempner, F. A. Mourinho, F. B. Bottura, M. Oleskovicz, J. C. M. Vieira, J. R. Lima Filho



This research aims to assess the influence of different distribution systems loading profiles on the optimized placement process of Power Quality (PQ) monitors. Therefore it is presented a placement methodology that considers different loading profiles in the IEEE 34 nodes test feeder. The placement methodology is a branch and bound based algorithm which includes single phase short-circuits simulations with different fault resistances at each one of all considered loading profiles. An observability index is evaluated and introduced in the optimization process in order to prioritize monitors placement at the most sensitized nodes regarding voltage sags. Results reveal that the proposed placement methodology was able to provide feasible solutions, which contain the same placement nodes for all considered loading profiles. Thus, there are significant evidences that it is possible to properly carry out the optimal placement of PQ monitors, assuming the distribution system modeled and simulated without loads.

Published in: Renewable Energy & Power Quality Journal (RE&PQJ, Nº. 14)
Pages:306-311 Date of Publication: 2016/5/20
ISSN: 2172-038X Date of Current Version:2016/05/04
REF:300-16 Issue Date: May 2016
DOI:10.24084/repqj14.300 Publisher: EA4EPQ

Authors and affiliations

T. R. Kempner(1), F. A. Mourinho(1), F. B. Bottura(1), M. Oleskovicz(1), J. C. M. Vieira(1), J. R. Lima Filho(2)
1. Department of Electrical and Computer Engineering. University of São Paulo-São Carlos School of Engineering. Laboratório de Sistemas de Energia Elétrica. Brazil
2. Research, Development and Energetic Efficiency Managment. Eletrobras Distribuição Piauí - EDPI. Brazil

Key words

Distribution systems, power quality, optimal allocation, load profile, voltage sags.


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