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Adaptive optimal tuning of a general class of stable LTI systems with restricted inputs

Shankar, HN and Rajgopal, K (1996) Adaptive optimal tuning of a general class of stable LTI systems with restricted inputs. In: Sadhana : Academy Proceedings in Engineering Sciences, 21 (part 4). pp. 435-463.

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The problem addressed is one of model reference adaptive control (MRAC) of asymptotically stable plants of unknown order with zeros located anywhere in the s-plane except at the origin. The reference model is also asymptotically stable and lacking zero(s) at s = 0. The control law is to be specified only in terms of the inputs to and outputs of the plant and the reference model. For inputs from a class of functions that approach a non-zero constant, the problem is formulated in an optimal control framework. By successive refinements of the sub-optimal laws proposed here, two schemes are finally design-ed. These schemes are characterized by boundedness, convergence and optimality. Simplicity and total time-domain implementation are the additional striking features. Simulations to demonstrate the efficacy of the control schemes are presented.

Item Type: Journal Article
Publication: Sadhana : Academy Proceedings in Engineering Sciences
Publisher: Indian academy of sciences
Additional Information: Copyright of this article belongs to Indian academy of sciences.
Keywords: Model reference adaptive control;nonminimum phase;unknown order;optimal control.
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Date Deposited: 19 May 2011 08:23
Last Modified: 19 May 2011 08:23
URI: http://eprints.iisc.ac.in/id/eprint/36997

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