Application of multiple integrator based controllers for low switching frequency multilevel NPC power active filters: Limitations and improved structures

Author

De Heredia, A. López ; Etxeberria-Otadui, I. ; Aurtenetxea, S. ; Abad, G. ; Rodriguez, M.A. ; Bacha, S.

Author_Institution

IKERLAN IK4 Technol. Res. Centre, Mondragon

fYear

2007

fDate

2-5 Sept. 2007

Firstpage

1

Lastpage

10

Abstract

In digitally controlled high power applications switching frequency restrictions may degrade considerably the closed-loop frequency response of the control structure, introducing important and hazardous resonance bands. In this paper this phenomenon is demonstrated on the base of a conventional multi- integrator based controller and various improving methods are proposed and analyzed (both in simulation and experimentally).

Keywords

active filters; digital control; frequency response; integrating circuits; power filters; NPC power active filters; closed-loop frequency response; digital control; multiple integrator; resonance bands; switching frequency; Active filters; Digital-to-frequency converters; Frequency response; Power harmonic filters; Power system harmonics; Pulse width modulation; Resonance; Switching converters; Switching frequency; Transfer functions; Converter control; active filter; harmonics; multilevel converter;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Applications, 2007 European Conference on

Conference_Location

Aalborg

Print_ISBN

978-92-75815-10-8

Electronic_ISBN

978-92-75815-10-8

Type

conf

DOI

10.1109/EPE.2007.4417643

Filename

4417643