Repetitive scheme plugged-in parallel with Deadbeat controller for VFD fed by cascaded multilevel inverter

Author

Trabelsi, Mohamed ; Ben-Brahim, L. ; Kawamura, Atsuo ; Yokoyama, Tomoki ; Yoshino, Tomonobu ; Kurosawa, R.

Author_Institution

Electr. Dept., Qatar Univ., Doha, Qatar

fYear

2013

fDate

15-19 Sept. 2013

Firstpage

1070

Lastpage

176

Abstract

This paper proposes an experimental Real Time Digital Feedback Controller (RTDFBC) combined with a Repetitive technique to control a Variable Frequency Drive (VFD) fed by a cascaded Multi-Level Inverter (MLI). The proposed controller is Deadbeat type compensating for non-cyclical disturbances while the repetitive controller compensates for cyclical fluctuations (Dead-time effect, DC voltage imbalance effect) by generating proper compensating d-q voltages. This digital control is characterized by a very fast transient response, low switching losses, and a proper compensation for load disturbances and cyclical fluctuations. Theoretical analysis, simulation, and experimental results are described in this paper.

Keywords

invertors; transient response; variable speed drives; MLI; RTDFBC; VFD; cascaded multilevel inverter; cyclical fluctuations; deadbeat controller; load disturbances; low switching losses; real time digital feedback controller; repetitive scheme plugged-in parallel; variable frequency drive; very fast transient response; Induction motors; Integrated circuits; Inverters; Rotors; Stator windings; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Energy Conversion Congress and Exposition (ECCE), 2013 IEEE

Conference_Location

Denver, CO

Type

conf

DOI

10.1109/ECCE.2013.6646822

Filename

6646822