With game theory, we review the optimal digital controller realization problems that maximize a finite word length (FWL) closed-loop stability measure. For a large class of these optimal FWL controller realization problems which have saddle points, a minimax-based search algorithm is derived for finding a global optimal solution. The algorithm consists of two stages. In the first stage, the clo...

In this paper, an optimal measurement feedback control problem that yields an almost-dissipative closed loop system is considered. Using information state ideas and the definition of the optimal cost presented, a dynamic programming equation is derived. Incremental analysis yields a corresponding variational inequality (VI) which naturally generalizes the information state based partial differe...

This paper presents a means to compute predictive optimal controls on-line and in closed loop for broad classes of differentiable nonlinear systems. Rather than iteratively optimize control sequences to minimize an objective, we derive a closedform expression for the control actions at each instant that optimally improve a tracking objective. As a special case, optimal actions are shown to redu...

This paper deals with an optimal instrumental variable method dedicated to subspace-based closed-loop system identification. The presented solution is based on the MOESP technique but requires to modify the original scheme by proposing a new PO MOESP method which uses reconstructed past input and past output data as instrumental variables. The developed approach is then illustrated via a simula...

OPTIMAL TOPOLOGICAL ARRANGEMENTS OF QUEUES IN CLOSED FINITE QUEUEING NETWORKS MAY 2015 LENING WANG M.S.M.E., UNIVERSITY OF MASSACHUSETTS AMHERST Directed by: Professor J. MacGregor Smith Closed queueing networks are widely used in many different kinds of scientific and business applications. Since the demands of saving energy and reducing costs are becoming more and more significant with develo...

In order to implement a quasi-optimal trajectory derived from pinch theory [1,2], a temperature tracking control system composed by an open-loop reflux ratio control plus a closed-loop correction for disturbance rejection is proposed. To adjust the closed-loop controller we use the referential dynamic reaction of the process [3] and tuning rules [4] that, though they were originally developed f...

This article reviews the development of experiment design in the field of identification of dynamical systems, from the early work of the seventies on input design for open loop identification to the developments of the last decade that were spurred by the research on identification for control. While the early work focused entirely on criteria based on the asymptotic parameter covariance, the ...

This paper presents a new design of robust optimal controller for multivariable system. The row characteristic functions of a linear multivariable system and dynamic decoupling of its equivalent system, were applied to change the transfer function matrix of a closed-loop system into a normal function matrix, so that robust H optimal stability is guaranteed. Furthermore, for the decoupled equiva...

To date closed form solutions for optimal finish time and job allocation are largely obtained only for network topologies with a single load originating (root) processor. However in large-scale data intensive problems with geographically distributed resources, load is generated from multiple sources. This paper introduces a new divisible load scheduling strategy for single level tree networks w...

This paper proposes a methodology for the computation of optimal locations of point control actuators for nonlinear feedback controllers in transport-reaction processes described by a broad class of quasi-linear parabolic partial differential equations (PDE). Initially, Galerkin’s method is employed to derive finite-dimensional approximations of the PDE system which are used for the synthesis o...