A repetitive based controller for a shunt active filter to compensate for reactive power and harmonic distortion

G. Escobar, R. Ortega, A. Astolfi, M. F. Martínez, J. Leyva-Ramos

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Scopus citations

Abstract

This paper presents a repetitive-based controller for a single phase active niter to compensate for reactive power and current harmonic distortion, i.e., to guarantee a power factor close to unity. The topology selected for the active filter consists of a single phase full-bridge Voltage Source Inverter (VSI). The controller is based on a frequency domain description of the periodic disturbances. Adaptation is then introduced to cope with uncertainties in the disturbance signals and system parameters. A first observation is that the adaptations are reduced to a bank of resonant filters by means of suitable rotations, which are tuned at the frequencies of the harmonics under compensation. The second observation is that there exists an equivalent expression for such a bank of resonators in terms of a single delay line. Moreover, we show that this new expression for the controller, which belongs to the family of repetitive schemes, has a relatively simple implementation. The proposed control scheme has been experimentally tested in a 1.5 KVA prototype and the results are presented here.

Original languageEnglish
Title of host publicationProceedings of the 44th IEEE Conference on Decision and Control, and the European Control Conference, CDC-ECC '05
Pages6480-6485
Number of pages6
DOIs
StatePublished - 2005
Externally publishedYes
Event44th IEEE Conference on Decision and Control, and the European Control Conference, CDC-ECC '05 - Seville, Spain
Duration: Dec 12 2005Dec 15 2005

Publication series

NameProceedings of the 44th IEEE Conference on Decision and Control, and the European Control Conference, CDC-ECC '05
Volume2005

Conference

Conference44th IEEE Conference on Decision and Control, and the European Control Conference, CDC-ECC '05
Country/TerritorySpain
CitySeville
Period12/12/0512/15/05

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