Three-phase four-wire active front-end feeding a three-level voltage source inverter

Author

Liccardo, F. ; Marino, P. ; Schiano, C. ; Visciano, N.

Author_Institution

Dept. of Inf. Eng., Naples Second Univ., Italy

Volume

2

fYear

2004

fDate

4-7 May 2004

Firstpage

1153

Abstract

A four-wire two-level active front-end (AFE) interlacing a three-level voltage source inverter (VSl) to the utility network is proposed. The AFE consists of a classical three-phase four-wire ac-dc boost rectifier with two split-capacitors. It absorbs almost sinusoidal currents with unity power factor. Moreover it is controlled in order to guarantee the dc-levels balancing. With reference to the control algorithm of the AFE a new robust synchronization mechanism to detect the phase angle of the positive sequence of the node voltages is proposed. Numerical simulations show the effectiveness of the proposed AFE applied to feed an induction motor based adjustable speed drive (ASD) controlled by means of a field oriented control (FOC) technique.

Keywords

induction motor drives; invertors; machine control; numerical analysis; power capacitors; power factor; rectifying circuits; robust control; synchronisation; variable speed drives; ASD; adjustable speed drive; classical three-phase four-wire ac-dc boost rectifier; field oriented control technique; induction motor; robust synchronization mechanism; three-level voltage source inverter; three-phase four-wire active front-end feeding; two split-capacitors; unity power factor; Feeds; Induction motors; Inverters; Numerical simulation; Phase detection; Reactive power; Rectifiers; Robust control; Variable speed drives; Voltage control; AC-DC Power Conversion; Active Filters.;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, 2004 IEEE International Symposium on

Print_ISBN

0-7803-8304-4

Type

conf

DOI

10.1109/ISIE.2004.1571976

Filename

1571976