Adaptive controller with parameter adjustment law expressed in r

Details Adaptive controller with parameter adjustment law expressed in r Adaptive controller with parameter adjustment law expressed in r

1997-06-24

2000-08-01

Grant, William

Data processing: generic control systems or specific application

Generic control system, apparatus or process

Optimization or adaptive control

700 37, 700 54, G05B 1302

Patent

active

060979895

ABSTRACT:
An adaptive controller using an adjustment law expressed in recurrence formula, including a plant, a controller which controls an input to the plant, and a parameter adjuster which adjusts a parameter of the controller. In the controller, an input to the parameter adjuster is multiplied by a coefficient other than 1 such that the range of change of the parameter adjuster's internal variable is restricted to a predetermined limit. With this arrangement, the controller can be realized on a less expensive and fewer-bit-length microcomputer such as 16-bits. The input to the parameter adjuster may be made up of the control input to the plant and an output therefrom. Alternatively, the input to the controller and an output from the plant may be both multiplied by a coefficient other than 1 to be input to the parameter adjuster. Further, it may be arranged such that a gain matrix element of the parameter adjuster is intermittently replaced with a prescribed value when it exceeds a limit, or when the cycle of the control exceeds a predetermined number of cycles.

REFERENCES:
patent: 3794817 (1974-02-01), Shinskey
patent: 3906196 (1975-09-01), Spitz
patent: 4330828 (1982-05-01), Smith et al.
patent: 4349869 (1982-09-01), Prett et al.
patent: 4674028 (1987-06-01), Shioya et al.
patent: 4768143 (1988-08-01), Lane et al.
patent: 5038269 (1991-08-01), Grimble et al.
patent: 5115391 (1992-05-01), Puthenpura et al.
patent: 5268834 (1993-12-01), Sanner et al.
patent: 5283729 (1994-02-01), Lloyd
"Digital Adaptive Control", Computrol, No. 27, pp. 28-41, along with brief English explanation.
Automatic Control Handbook, pp. 703-707, along with brief English explanation.
Landau et al, "Unification of Discrete Time Explicit Model Reference Adaptive Control Designs", Automatica, vol. 17, No. 4, pp 593-611, 1981.
"A Survey of Model Reference Adaptive Techniques--Theory and Applications", Landau, Automatica, vol, 10, pp 353-379, Pergamon Perss, 1974.
"Combining Model Reference Adaptive Controllers and Stochastic Self-tuning Regulators", Landau, Automatica, vol. 18, No. 1, pp 77-84, 1982.
J. Duan et al; "Review of Hybrid and Continuous Time Self Tuning Controllers and Analysis of an LQ Design"; IEE; Mar. 25, 1991; London, UK.
J. Duan et al; "Observer-Based Predictive Control"; Sep. 1992; IEEE; 2 vol. (xxv+xxii+1144 pp).
J. Chen et al.; Robust Control of Nonlinear Uncertain Systems: A Feedback Linearization Approach; Decision and Control 1991 Conf.; 1991.

Affiliated with

Also associated with

Rating

Adaptive controller with parameter adjustment law expressed in r does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Adaptive controller with parameter adjustment law expressed in r, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adaptive controller with parameter adjustment law expressed in r will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-672957