Feedback controller

Details Feedback controller Feedback controller

1988-11-23

1990-09-18

Shoop, Jr., William M.

Electricity: motive power systems

Positional servo systems

With stabilizing features

318615, 318561, G05B 501

Patent

active

049581147

ABSTRACT:
A high-performance and high-band feedback controller which provides a state observer in which an amount of state or an amount to be controlled outputted from a detector part and an amount of operation are input signals, presumes the amount to be controlled which is closser to a true value, can compensate for deviations from desired characteristics such as a mechanical resonance characteristic and a delay time characteristic in a high frequency band of an object to be controlled and a detector part by feeding back this presumed amount, and, further, can eliminate noise mixed into the detector part by setting the band of the state observer lower than a frequency of the noise mixed into the detector part.

REFERENCES:
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patent: 4733149 (1988-03-01), Culberson
patent: 4816734 (1989-03-01), Kurakake et al.
patent: 4851754 (1989-07-01), Sakamoto et al.
"Linear Servomechanisms--The Analysis Problem", Control Systems Theory, Chapter 6, pp. 119-123.
"An Introduction to Observers", IEE Transactions on Atomatic Control, vol. AC-16, No. 6, pp. 596-602, by David G. Luenberger.

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