DC-link regulator for Shunt Power Active Filter using feed-forward control strategy

Author

Azevedo, C.C. ; Ribeiro, R.L.A. ; Jacobina, C.B. ; Sousa, R.M.

Author_Institution

Dept. de Eng. Eletr., Univ. Fed. do Rio Grande do Norte, Natal, Brazil

fYear

2011

fDate

11-15 Sept. 2011

Firstpage

877

Lastpage

883

Abstract

This paper presents a feed-forward control strategy for DC-link regulator in a Shunt Power Active Filter SAPF. The DC-Link regulator is cascaded with an indirect current control. The feed-forward control strategy is based on load current estimates. With this control strategy, the DC-link regulator achieves a fast transient response when subject to load variations increasing protection against capacitor over voltage or significant voltage drop in the DC-link. Experimental results are presented in order to show the effectiveness of the proposed control strategy.

Keywords

active filters; controllers; electric current control; overvoltage protection; power capacitors; power filters; power system control; DC-link regulator; capacitor overvoltage; feed-forward control; indirect current control; load current estimates; shunt power active filter; Current control; Harmonic analysis; Impedance; Power grids; Sensors; Transfer functions; Voltage control; Active filter; Feed-foward; dc-link regulator;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Conference (COBEP), 2011 Brazilian

Conference_Location

Praiamar

ISSN

2175-8603

Print_ISBN

978-1-4577-1644-7

Electronic_ISBN

2175-8603

Type

conf

DOI

10.1109/COBEP.2011.6085263

Filename

6085263