Title :
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
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;
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
DOI :
10.1109/EPE.2007.4417643
