Self-tuning pole/zero assignment regulators

Abstract

In this paper a class of self-tuning regulators is considered which combines a simple recursive least squares estimator with a pole/zero assignment design rule. Two such algorithms aTC shown to have the self-tuning property {i) detuned minimum variance regulators; (ii) pole-assignment regulators.The usc of these regulators in self-tuning can be of considerable benefit. In particular. case (i) is useful when minimum variance strategies need unrealistically high· loop gains. since they permit an engineering trade-off between optimality and practicality.Case {ii} is of use in regulating non-minimum phase systems or systems involving unknown time delays. Such systems are frequently encountered in discrete time control and cannot be handled by direct minimum variance methods.

Self-tuning controllers based on pole-zero placement

“…A digital adaptive pole-shifting algorithm was discussed in a dissertation by Edmunds. 13 This and similar algorithms are further discussed in References 33,36,34 and 15. In these works, the emphasis is, however, on the regulation problem and not on the servoproblem. The use of feed-forward is not discussed.…”

Bayesian spectral density approach for modal updating using ambient data

“…Examples are the complex curve ÿtting [14], the maximum entropy method [15], the pole=zero assignment technique [16], the simultaneous frequency-domain approach [17], rational fraction polynomial approach [18], orthogonal polynomial approach [19], polyreference frequency-domain approach [20], multi-reference simultaneous frequency-domain approach [21] and the best-ÿt reciprocal vectors method [22].…”

The system identification and control of Hammerstein system using non-uniform rational B-spline neural network and particle swarm optimization

“…Here the problem under study is the control of the Hammerstein system, of which the nonlinear subsystem is modelled as a NURB curve and identified from input/output data. The proposed controller is the pole assignment design scheme for F, G, H [44,45], followed byĈ…”