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Optimally selecting the location of a multiple of D‐statcoms for the improvement of SARFI X due to faults in the IEEE 33‐bus distribution system
Author(s) -
Khanh Bach Quoc,
Hojo Masahide
Publication year - 2019
Publication title -
ieej transactions on electrical and electronic engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.254
H-Index - 30
eISSN - 1931-4981
pISSN - 1931-4973
DOI - 10.1002/tee.22915
Subject(s) - voltage sag , thévenin's theorem , fault (geology) , voltage , engineering , control theory (sociology) , reliability engineering , distribution (mathematics) , computer science , mathematical optimization , electronic engineering , electrical engineering , mathematics , equivalent circuit , power quality , control (management) , artificial intelligence , seismology , geology , mathematical analysis
This article introduces a new method for optimizing the placement of a multiple of D‐Statcoms for voltage sag mitigation in distribution systems. The D‐Statcom's placement is optimally selected not only for improving system voltage sag caused by a single fault event but also for all possible fault events in the system of interest. Therefore, D‐Statcom's placement is optimized in a problem of optimization where the objective function is to minimize the system voltage sag index—SARFIx. D‐Statcom's effectiveness for voltage sag mitigation is modeled based on the method of Thevenin's superimposition for the problem of short‐circuit calculation in distribution systems. This article considers the case of using a multiple of D‐Statcoms with a proposed voltage compensating principle that can be practical for large‐size distribution systems. This article uses the IEEE 33‐buses distribution feeder as the test system for voltage sag simulation and influential parameters to the outcomes of the problem of optimization are considered and discussed. © 2019 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.