Control design and dynamic analysis for three phase PWM rectifiers under unbalanced voltage dips conditions

Author

Roiu, D. ; Bojoi, R.

Author_Institution

Dept. of Electr. Eng., A. Tenconi Politec. di Torino, Torino, Italy

fYear

2009

fDate

3-5 Nov. 2009

Firstpage

308

Lastpage

315

Abstract

The goal of the control strategy for three-phase pulse width modulation (PWM) rectifiers operating under unbalanced voltage conditions is to avoid ripple in the DC-link voltage and harmonics in the input AC currents. A stationary frame control scheme which regulates the instantaneous active power at the converter poles for minimizing of input/output harmonics is used. The design of the control loops involved in this control strategy is provided in this paper. Furthermore, a dynamic analysis of the PWM rectifier operating under balanced and unbalanced voltage operating conditions is performed. The analysis is supported by experimental results for a 20 kVA PWM rectifier prototype. Fast dynamic performance with small DC-link voltage ripple and input sinusoidal currents are obtained with this control scheme even under severe voltage dips operating conditions.

Keywords

PWM rectifiers; control system analysis; control system synthesis; DC link voltage; apparent power 20 kVA; control design; dynamic analysis; stationary frame control scheme; three phase pulse width modulation rectifiers; unbalanced voltage dips conditions; Control design; Converters; Power conversion; Power harmonic filters; Power system harmonics; Proportional control; Pulse width modulation; Rectifiers; Voltage control; Voltage fluctuations;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, 2009. IECON '09. 35th Annual Conference of IEEE

Conference_Location

Porto

ISSN

1553-572X

Print_ISBN

978-1-4244-4648-3

Electronic_ISBN

1553-572X

Type

conf

DOI

10.1109/IECON.2009.5414940

Filename

5414940