H-infinity controller for an electro-mechanical actuator

Details H-infinity controller for an electro-mechanical actuator H-infinity controller for an electro-mechanical actuator

1993-05-17

1995-01-03

Gregory, Bernarr E.

Boots, shoes, and leggings

341144, G05B 1302

Patent

active

H00014109

ABSTRACT:
A single-input single-output control system includes an H.sub..infin. controller having an input for receiving an command input signal and an output for producing an output signal, an electro-mechanical (E-M) actuator connected in series with the H.sub..infin. controller and having an input for receiving the output signal from the H.sub..infin. controller and an output for producing an output signal representative of an action taken by the E-M actuator, and a feedback loop connected in series with the E-M actuator and the H.sub..infin. controller for transferring the output signal of the E-M actuator to the input of the H.sub..infin. controller for combining with the command input signal and inputting an error input signal to the H.sub..infin. controller. The H.sub..infin. controller performs a time-related sequence of samples and continuously holding a predetermined number of most recent ones of the samples and modifies the samples by applying predetermined constants thereto to derive the error signal outputted to the E-M actuator in order to improve the stability of the E-M actuator.

REFERENCES:
patent: 4677507 (1987-06-01), Elliot
patent: 4684922 (1987-08-01), Minogue
Hostetter et al., Design of Feedback Control Systems, Copyright .COPYRGT. 82 CBS College Publishing, pp. 485, 510 and 515-522.
Analog Devices, Inc. Analog-Digital Conversion Handbook, .COPYRGT. 1986, pp. 628-634, Library of Congress Catalog No. 85-62726.
Technical Publication #A8AA-92-4314-CP by Gerald A. Harley; pp. 80 Through 86, Inclusive; Title: H-Infinity Controller Design for an SISO Electromechanical Actuator.

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