Transactions of the Institute of Systems, Control and Information Engineers
Online ISSN : 2185-811X
Print ISSN : 1342-5668
ISSN-L : 1342-5668
Design of a Multiple-input Multiple-output Dualrate System in State-space Representation
Shuhei KimuraTakao SatoNozomu ArakiYasuo Konishi
Author information

2014 Volume 27 Issue 3 Pages 80-86


This paper deals with a multiple-input multiple-output dualrate system, where the sampling intervals of the plant outputs are an integer multiple of the hold intervals of the control inputs. In such a multirate system, ripples may occur in intresample behavior even if sampled outputs converge to reference inputs. In order to resolve this problem, a control law is enhanced using free parameters. As a result, ripples are eliminated in the steady state without changing the sampled outputs using an existing designed control law. Furthermore, a design method in state-space representation is proposed. In this paper, an observer is used because all state variables cannot be observed. Finally, numerical examples demonstrate the effectiveness of the proposed method.

Information related to the author
© 2014 The Institute of Systems, Control and Information Engineers
Previous article Next article