Fractional Delay Based Repetitive Control with Application to PWM DC/AC Converters

Author

Wang, Yigang ; Wang, Danwei ; Zhang, Bin ; Zhou, Keliang

Author_Institution

Nanyang Technol. Univ., Singapore

fYear

2007

fDate

1-3 Oct. 2007

Firstpage

928

Lastpage

933

Abstract

In repetitive control system, the period of exogenous signals must be the integer number of sampling points. However, it can not be always satisfied in real applications. In this paper, a systematic approach for non-integer delay repetitive control system with fixed sampling rate is proposed. The proposed fractional delay based repetitive control scheme employs the design techniques in digital signal processing theory and two different implementation structures are presented. One is easy to design and the other has optimized performance. Application of the proposed method to PWM DC/AC converter systems is studied to illustrate the design procedure and performance. Experimental results demonstrate the effectiveness of the proposed approach.

Keywords

DC-AC power convertors; PWM power convertors; control system synthesis; delay systems; PWM DC/AC converters; digital signal processing theory; fixed sampling rate; fractional delay based repetitive control; pulse width modulated DC/AC converters; Analog-digital conversion; Control systems; Delay; Finite impulse response filter; Interpolation; Least squares approximation; Pulse width modulation; Pulse width modulation converters; Robust stability; Signal sampling;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Applications, 2007. CCA 2007. IEEE International Conference on

Conference_Location

Singapore

Print_ISBN

978-1-4244-0442-1

Electronic_ISBN

978-1-4244-0443-8

Type

conf

DOI

10.1109/CCA.2007.4389352

Filename

4389352