Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/217947

Title

Adaptive repetitive control of system subject to periodic disturbance with time-varying frequency

Author(s)

Kurniawan, E.;  Cao, Z.;  Man, Z.

Abstract

Repetitive Control (RC) has been widely used to track/reject periodic signal. However, RC alone fails to track any non-periodic reference signal. Another control scheme such as Model Reference Control (MRC) or Model Reference Adaptive Control (MRAC) is required to do such task. MRC is employed when the plant parameters are known, while MRAC is used when the plant parameters are unknown. Therefore, MRC/MRAC needs to be combined with RC in order to simultaneously track any reference signal (not necessarily periodic) and reject the periodic disturbance. The design of RC mostly assumes the constant frequency of disturbance which leads to the selection of a fixed sampling period. In practical, disturbance is possibly time-varying in frequency. The sampling period has to be carefully adjusted in order to keep the number of samples per period remains constant. This sampling period adjustments change the plant parameters. This paper proposes the design of MRAC combined with RC for system subject to periodic disturbance with time-varying frequency. As a preliminary, the design of MRC combined with RC is also discussed here.

Publication type

Conference paper

Research centre

Swinburne University of Technology. Faculty of Engineering and Industrial Sciences

Source

Proceedings of the First International Conference on Informatics and Computational Intelligence (ICI 2011), Bandung, Indonesia, 12-13 December 2011, pp. 185-190

Publication year

2011

Keyword(s)

Adaptive control;  Model Reference Adaptive Control;  Model Reference Control;  MRAC;  MRC;  Parameters;  RC;  Repetitive control;  Sampling period

Publisher

IEEE

ISBN

9780769546186, 0769546188

Publisher URL

http://dx.doi.org/10.1109/ICI.2011.38

Copyright

Copyright © 2011 IEEE.

Peer reviewed