- [Show abstract] [Hide abstract] ABSTRACT: This paper documents progress toward the solution of the generic Shell control problem as described in the Problem Description Section. Two main approaches are investigated. One is the discrete linear quadratic Gaussian/loop transfer recovery methodology; the other is through the use of the Qdes (Q-parametrization convex optimization) computer aided design package, developed by Boyd and colleagues at Stanford University. Several problems have been encountered along the way. Each is significant in its own right, and solutions to which will contribute our understanding of the control problem. Initial results using Qdes design are presented and future effort toward solving this problem is described.
Conference Paper: Application of Feedback Linearization to Bioreactor Control[Show abstract] [Hide abstract] ABSTRACT: This paper presents the procedures and results of Using the input-output linearization technique in the design of a controller for a generic nonlinear continuous bioreactor. Of special interest is the existence of singular points which renders direct application of the input-output linearization theory infeasible. In this paper, we present a modified scheme which allows us to approximately extend the input-output linearization technique across the singular points. The feasibility and effectiveness of the proposed method are demonstrated through computer simulation. This modified method provides a more intuitive insight into the nonlinear system control.
The University of Tennessee Medical Center at KnoxvilleKnoxville, Tennessee, United States