Disturbance estimated type control system, gas compressor...

Data processing: generic control systems or specific application – Generic control system – apparatus or process – Optimization or adaptive control

Reexamination Certificate

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C700S030000, C700S031000

Reexamination Certificate

active

07142930

ABSTRACT:
A disturbance estimated-type control system has a control object based on a mathematical model having of one of a state equation and a transfer function and prepared by system identification technology. A disturbance estimating device is based on an expansion system based on the mathematical model for estimating a disturbance of the control object in accordance with an input signal inputted into the control object and a detection signal detected from the control object. A compensating device is based on the mathematical model for compensating for a deviation between the detection signal and a target value and for outputting a corresponding control signal. A subtractor subtracts the control signal of the compensating device from a disturbance estimated value of the disturbance estimating device.

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A. Kawata et al: “Power-Frequency Characteristics and Load Disturbance Estimation by Extended Kalman Filter” Memoirs of the Faculty of Engineering, Kobe University, No. 37, 1990, pp. 179-186, XP002235152 Japan.

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