A new iterative learning control method for PWM inverter current regulation

Author

Ben-Brahim, Lazhar ; Benammar, Mohieddine ; Alhamadi, Mohd A.

Author_Institution

Qatar Coll. of Technol., Qatar Univ., Doha, Qatar

Volume

2

fYear

2003

fDate

17-20 Nov. 2003

Firstpage

1460

Abstract

AC servomotor speed or current controller based on PI control and/or optimal control, can not eliminate the cyclical fluctuations of speed or current when subject to periodic disturbances. PWM inverters output waveforms are distorted by dead-time effect, which is cyclical type disturbances. Conventional dead-time compensation methods based on feedforward techniques, using current reference polarity, do not resolve these effects around zero current crossing area. A new current regulation method based on iterative learning control technique is proposed in order to reduce the distortions caused by both the dead-time and the zero crossing problems.

Keywords

AC motor drives; PWM invertors; distortion; electric current control; iterative methods; servomotors; AC drives; AC servomotor; PWM inverter; current regulation; dead-time effect; distortion reduction; iterative learning control method; repetitive control; zero current crossing area; Current control; Delay effects; Drives; Educational institutions; Fluctuations; Frequency; Iterative methods; Optimal control; Pulse width modulation; Pulse width modulation inverters;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Drive Systems, 2003. PEDS 2003. The Fifth International Conference on

Print_ISBN

0-7803-7885-7

Type

conf

DOI

10.1109/PEDS.2003.1283199

Filename

1283199