Title :
Proposal of a switched high dynamic series voltage regulator for compensating Sags and Swells on AC voltage source
Author :
Freitas, P.A.R. ; Guimaraes, E.C. ; Freitas, L.C.G. ; Vieira, J.B. ; Freitas, L.C.
Author_Institution :
Nucleo de Pesquisa em Eletron. de Potencia (NUPEP), Univ. Fed. de Uberlandia (UFU), Uberlandia, Brazil
Abstract :
This paper proposes a new topological arrangement that consists in connecting the AC voltage source in series with two EIE Buck converters, one to operate in the positive half cycle and the other to operate in the negative half cycle. The control strategy is developed to achieve an AC output voltage within the limits set by standards in order to mitigate problems associated with Sags and Swells on AC voltage supply. Operating principles and the main simulation and experimental results obtained for steady-state and transient operation conditions are presented and validated on a 1 kVA experimental unit.
Keywords :
AC-AC power convertors; power supply quality; voltage control; AC voltage source; AC voltage supply; EIE buck converters; high dynamic series voltage regulator; negative half cycle; positive half cycle; voltage sag compensation; voltage swell compensation; Power quality; Power system dynamics; Standards; Switches; Threshold voltage; Voltage control; Voltage fluctuations; AC/AC converter; Voltage Regulator Module (VRM); Voltage sag compensator;
Conference_Titel :
Power Electronics and Applications (EPE), 2013 15th European Conference on
Conference_Location :
Lille
DOI :
10.1109/EPE.2013.6631932
