### Skapa referens, olika format (klipp och klistra)

**Harvard**

Christiansson, A., Lennartson, B. och Toivonen, H. (2001) *Sampled-Data H-infinity-Control for Time-Varying Hybrid Systems*.

** BibTeX **

@article{

Christiansson2001,

author={Christiansson, Anna-Karin and Lennartson, Bengt and Toivonen, H.T.},

title={Sampled-Data H-infinity-Control for Time-Varying Hybrid Systems},

journal={Dynamics of Continuous, Discrete and Impulsive Systems. Series B: Applications and Algorithms},

issn={1492-8760},

volume={8},

issue={4},

pages={427-444},

abstract={This paper presents sampled-data H-infinity-control of linear mixed continuous-time and discrete-time systems, including a mix of continuous-time and discrete-time performance signals and disturbances. However, neither continuous-time control signals nor continuous-time measurements are included. The sampling may well be multirate, i.e. different signals may be sampled by different rates, as long as a periodic pattern is repeated over the period, consisting of a number of sampling steps. In fact, the results are applicable even to arbitrary linear time-varying systems.
The sampled-data system is discretised such that the continuous-time performance is reflected in the discretised or "lifted" system. This lifted system is combined with discrete-time updates at the sampling instants to achieve the sampled-data controller. The "hold-states" case is presented as a special application, when there is also a hold circuit at the controller output. The continuous-time Riccati equations with discrete-time updates then can be replaced by one discrete-time static feedback and filter Riccati equation respectively, which also reflect the intersample behaviour.
Furthermore, convergence results between the discretised Riccati solutions and the corresponding continuous-time solutions are shown, when the sampling interval decreases towards zero, Simulations are shown when the results are applied to the control of a MIMO jet-engine model.},

year={2001},

keywords={sampled-data systems; H-infinity-control; multirate control; time-varying systems; periodic systems; intersample behaviour },

}

** RefWorks **

RT Journal Article

SR Print

ID 15026

A1 Christiansson, Anna-Karin

A1 Lennartson, Bengt

A1 Toivonen, H.T.

T1 Sampled-Data H-infinity-Control for Time-Varying Hybrid Systems

YR 2001

JF Dynamics of Continuous, Discrete and Impulsive Systems. Series B: Applications and Algorithms

SN 1492-8760

VO 8

IS 4

SP 427

OP 444

AB This paper presents sampled-data H-infinity-control of linear mixed continuous-time and discrete-time systems, including a mix of continuous-time and discrete-time performance signals and disturbances. However, neither continuous-time control signals nor continuous-time measurements are included. The sampling may well be multirate, i.e. different signals may be sampled by different rates, as long as a periodic pattern is repeated over the period, consisting of a number of sampling steps. In fact, the results are applicable even to arbitrary linear time-varying systems.
The sampled-data system is discretised such that the continuous-time performance is reflected in the discretised or "lifted" system. This lifted system is combined with discrete-time updates at the sampling instants to achieve the sampled-data controller. The "hold-states" case is presented as a special application, when there is also a hold circuit at the controller output. The continuous-time Riccati equations with discrete-time updates then can be replaced by one discrete-time static feedback and filter Riccati equation respectively, which also reflect the intersample behaviour.
Furthermore, convergence results between the discretised Riccati solutions and the corresponding continuous-time solutions are shown, when the sampling interval decreases towards zero, Simulations are shown when the results are applied to the control of a MIMO jet-engine model.

LA eng

OL 30