Title:
FEEDBACK COMPENSATING METHOD FOR PARALLEL ESTIMATED VALUE OF FEEDBACK CONTROL SYSTEM
Document Type and Number:
Japanese Patent JPS58105301
Kind Code:
A
Abstract:
PURPOSE:To improve the accuracy and the stability of a feedback control system, by adding a compensated feedback control system which uses the estimated quantity for controlling n-sec earlier, obtained from a real data as the feedback signal in parallel to a basic feedback control system. CONSTITUTION:For a 1-loop basic feedback control system S, a numerical formula model expressing the quantity y2(t) of an optional time (t) is obtained by a minimum squaring method, etc. and from plural time series data obtained by varying the target value y(t) with the step signal, etc. Using this formula model, the quantity y2(t+n) to be controlled n-sec earlier is estimated on the basis of the data obtained up to the present point. Then a compensated feedback control system is formed to use the quantity y2(t+n) to the feedback signal. This obtained control system is added in parallel to the control system S to obtain a control system S' with compensated feedback. Thus both control systems are compensated with each other to keep the stability although the gains of both systems may change.
Inventors:
SHIROUMARU ISAO
Application Number:
JP20599881A
Publication Date:
June 23, 1983
Filing Date:
December 17, 1981
Export Citation:
Assignee:
SHIROUMARU ISAO
International Classes:
G05B17/00; G05B5/01; G05B11/36; (IPC1-7): G05B11/36; G05B17/02
Domestic Patent References:
| JPS5417480A | 1979-02-08 | |||
| JPS5471280A | 1979-06-07 | |||
| JPS461058A | ||||
| JPS5518770A | 1980-02-09 |
Attorney, Agent or Firm:
Takashi Mihara
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