Adaptive control system

Details Adaptive control system Adaptive control system

1985-05-31

1988-03-22

Shoop, Jr., William M.

Electricity: motive power systems

Positional servo systems

Adaptive or optimizing systems including 'bang-bang' servos

318610, 318332, G05B 1300

Patent

active

047331496

ABSTRACT:
A real time adaptive control capable of maintaining stable operation with changing inertia. The controller utilizes a pseudo-derivative feedback (PDF) type control wherein dynamic adjustment is achieved by adjusting only a single variable. The variable can be controlled as a function of the derivation of motor speed divided by motor current for adaptive control with changing inertia. Control may also be achieved as a function of motor speed divided by the integral of motor current over the same interval. In a digital implementation the integral of motor current the time required for a predetermined speed change provides effective control.

REFERENCES:
patent: 4498037 (1985-02-01), Razaui
patent: 4540923 (1985-09-01), Kade
Phelan, Richard M., "Automatic Control Systems", Condon, Cornell University Press, 1977; pp. 124-201.
Weilrich, G. and D. Wohld, "Adaptive Speed Control of D.C. Driver Using Adaptive Observers", 1980, pp. 283-287.

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