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A self-adjusting control system with large initial error

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2 Author(s)
Clark, R. ; University of Washington, Seattle, WA, USA ; Wheeler, P.

A performance measuring, plant-adaptive control system is described. A linear plant having two variable parameters induces a large system error which is reduced by adjustments made in two controller parameters. An adaptive computer, the logical design of which is based on a modification of Newton's method of descent, generates the controller-parameter changes from measurements of the integral-of-error squared (ISE). This method is evaluated with regard to the time interval required to reduce ISE from a large initial value to a small prescribed limit. The average adaptation time for this system is shown to be approximately sixty times the response time of the system when the system error is zero.

Published in:

Automatic Control, IRE Transactions on  (Volume:7 ,  Issue: 1 )

Date of Publication:

Jan 1962

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