Linear Matrix Inequalities in Multirate Control over Networks

Abstract EN

This paper faces two of the main drawbacks in networked control systems: bandwidth constraints and timevarying delays.

The bandwidth limitations are solved by using multirate control techniques.

The resultant multirate controller must ensure closed-loop stability in the presence of time-varying delays.

Some stability conditions and a state feedback controller design are formulated in terms of linear matrix inequalities.

The theoretical proposal is validated in two different experimental environments: a crane-based test-bed over Ethernet, and a maglev based platform over Profibus.