On-Off Process Control Operating on Sampled Data

Sampled-data supervisory control

This paper focuses on issues related to implementing timed discrete-event systems (TDES) supervisors, and the concurrency and timing delay issues involved. In particular, we examine issues related to implementing TDES as sampled-data (SD) controllers. An SD controller is driven by a periodic clock and sees the system as a series of inputs and outputs. On each clock edge (tick event), it samples...

Optimal Sampled-data Control

On the Absolute Stability of Sampled-data Control Systems.

that the linear part of Q is completely controllable1 (the vectors a, Aa, . . ., la are linearly independent) and completely observable1 (the vectors b, A'b,. (A') -1b are linearly independent), and also that the system (2) is asymptotically stable for all linear (p(ah) = uhm in the class (1). Thus, the system (2) has only one equilibrium point: Xh = XA+l = 0. 2. One wants to derive a sufficien...

A Retrospective View on Sampled-data { Control Systems

Prelude In this brief article I will attempt to give a fairly personal and retrospective view on the recent developments in the theory of sampled data control systems The emphasis is upon how I came to discover a new function space framework currently called lifting for sampled data systems and how this notion helped to clarify certain issues in the study of such systems It was a fairly cold da...

On the Sampled-Data Control of Nonlinear Systems

Most research in control of nonlinear systems is devoted to continuous time systems, the discrete time models being not well defined and difficult to handle. In this paper, an attempt to obtain equivalent discrete time models for sampled data control system is presented. Although the class of nonlinear systems is restricted to the so called sampled data computable nonlinear systems, it is also ...