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Voltage sag compensation with minimum energy injection by use of a micro‐SMES
Author(s) -
Polmai Sompob,
Ise Toshifumi,
Kumagai Sadatoshi
Publication year - 2002
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.10047
Subject(s) - voltage sag , compensation (psychology) , voltage , energy (signal processing) , energy storage , engineering , electrical engineering , electronic engineering , control theory (sociology) , computer science , power (physics) , mathematics , physics , power quality , psychology , statistics , psychoanalysis , control (management) , quantum mechanics , artificial intelligence
Abstract This paper presents a method to compensate voltage sags with minimum energy injection for a series‐connected voltage restorer using a micro‐SMES. A circuit for extracting the fundamental symmetrical components from sag voltages and a minimum energy injection algorithm is described. Simulations of voltage sag compensation have been carried out using PSCAD/EMTDC for various faults. The simulation results confirm the validity of the proposed method and show the possibility of reducing the size of energy storage devices. © 2002 Wiley Periodicals, Inc. Electr Eng Jpn, 141(3): 70–80, 2002; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/eej.10047