DocumentCode :
1108581
Title :
A Repetitive-Based Controller for the Compensation of 6\\ell \\pm 1 Harmonic Components
Author :
Escobar, Gerardo ; Hernandez-Briones, Perla G. ; Martinez, Panfilo R. ; Hernandez-Gomez, Michael ; Torres-Olg, Raymundo E.
Author_Institution :
Div. of Appl. Math., Inst. for Sci. & Technol. Res. of San Luis Potosi (IPICYT), San Luis Potosi
Volume :
55
Issue :
8
fYear :
2008
Firstpage :
3150
Lastpage :
3158
Abstract :
In this paper, a repetitive-based controller for the compensation of 6 lscr plusmn 1 harmonic components is proposed. This control scheme is more appropriate for processes that involve the use of six-pulse converters or other converters that mainly produce harmonic components at those frequencies. The control scheme is based on the feedback array of two delay lines plus a feedforward path that compensates only the 6 lscr plusmn 1 multiples of the fundamental frequency, thereby reducing the possibility of reinjecting unnecessary distortion into the system. The proposed scheme is, then, plugged into a generic feedback control system where a stability analysis is carried out. In addition, the passivity properties of the proposed scheme are presented, which open the possibility of control design following the passivity-based approach. Experiments that are based on a simple digital implementation are provided to illustrate the merits of our solution. These results include the open-loop responses of the proposed scheme and the responses in a practical example to validate its effectiveness in an application. For this latter result, the proposed scheme has been used in the controller of a 2-kVA shunt active filter to compensate the current harmonic distortion.
Keywords :
compensation; feedback; feedforward; harmonic distortion; power conversion harmonics; power harmonic filters; stability; apparent power 2 kVA; compensation; current harmonic distortion; digital implementation; feedforward path; generic feedback control system; passivity-based approach; repetitive-based controller; shunt active filter; six-pulse converter; stability analysis; Delay lines; delay lines; harmonic compensation; periodic disturbances; positive real (PR) functions; positive real functions; power system harmonics; repetitive control;
fLanguage :
English
Journal_Title :
Industrial Electronics, IEEE Transactions on
Publisher :
ieee
ISSN :
0278-0046
Type :
jour
DOI :
10.1109/TIE.2008.921200
Filename :
4475430
Link To Document :
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