The paper is focused on an implementation of a decoupling multivariable controller in the Matlab/Simulink environment. The control algorithm is based on polynomial theory and pole – placement. A decoupling compensator is used to suppress interactions between control loops. The controller was realized both with fixed parameters and with recursive identification of a model of the controlled syste...

This paper considers control of the aluminum reduction process, using a dynamic model developed from the literature and Virtpot, a model developed at Kaiser Aluminum. Analysis shows the process is controllable and observable, but not easily stabilizable using only one input, and that short-term changes in measured voltage result primarily from changes in alumina concentration rather than anode-...

This paper presents a qualitative control of a fluid mixer, which is a multivariable and intrinsically non-linear plant. The mixer has as inputs two fluids of different colours and the output is the colour of the resulting mix. The control system consists of two independent fuzzy controllers which are responsible for maintaining the water level at a given height and for adjusting the colour of ...

ion is a key feature of control engineering. To realise that the dynamic behaviour of an aircraft can be represented with the same tools, and even equations, as a distillation column provides a platform to conceive control systems in a generic way. But this common framework for representing the dynamics of different processes does not mean that the particular characteristics of any process are ...

This paper describes an interactive, optimization-based multivariable control system design package which is currently under development at the University of California, Berkeley. The package will combine a number of subroutines from the Imperial College Multivariable Design System and the Kingston Polytechnic SLICE library with DELIGHT, the University of California, Berkeley, general purpose, ...

be profitable to industry in the long term, but also creates an academic interest in the field of multivariable control. a search window is placed, whose lower and upper limits [lower, upper] are [C(x j)-a(x j) , C(x j) + a(x j)] for j = 1 ... N (1) where C(x j) is the centre of the search window on the x j axis a(x j) is the predefined length interval on the x j axis. The centre of gravity (c....

This paper is concerned with the synthesis of a nonlinear state feedback law for nonsquare multivariable nonlinear systems. Previous approaches in the literature have solved this problem by (1) squaring the system by discarding some inputs or by adding new outputs, or (2) by utilizing some inputs for input/output (I/O) linearization and the remaining inputs for minimizing cost. In this paper, a...

In order to incorporate fuzzy goals and constraints in model predictive control, this control technique have recently been integrated with fuzzy decision making. The goals and the constraints of the control problem are combined by using a decision function from the theory of fuzzy sets. This technique have been studied for single-input single-output processes. This paper extends this approach f...