Title :
Closed-loop control of a dynamic voltage restorer based on a 4-leg voltage source converter
Author :
Fernandes, D.A. ; Naidu, S.R. ; Lima, A.M.N.
Author_Institution :
Dept. of Electr. Eng., Univ. Fed. de Campina Grande, Campina Grande
fDate :
June 30 2008-July 2 2008
Abstract :
Analysis and control of a dynamic voltage restorer have been described. The voltage restorer is based on a 4-leg voltage source converter. The 3-phase input variables are resolved into the positive, negative and zero-sequence components using a weighted, recursive, least-squares estimator. Identical controllers have been used for each sequence component. A laboratory model of the restorer has been constructed and its performance has been tested by simulation and experiments.
Keywords :
closed loop systems; least squares approximations; machine control; power convertors; recursive estimation; 4-leg voltage source converter; closed-loop control; dynamic voltage restorer; least-squares estimator; recursive estimator; Converters; Electrical equipment industry; Manufacturing industries; Power conversion; Power distribution; Power quality; Power system protection; Recursive estimation; Voltage control; Voltage fluctuations;
Conference_Titel :
Industrial Electronics, 2008. ISIE 2008. IEEE International Symposium on
Conference_Location :
Cambridge
Print_ISBN :
978-1-4244-1665-3
Electronic_ISBN :
978-1-4244-1666-0
DOI :
10.1109/ISIE.2008.4677111
