Title:
ADAPTIVE CONTROL METHOD
Document Type and Number:
Japanese Patent JPH03179502
Kind Code:
A
Abstract:
PURPOSE:To device a manipulated variable optimum to the characteristic change of a plant due to the lapse of time or the disturbance and to improve the controllability by using a model which simulates an entire multi-input/output plant as well as the nonlinear characteristic. CONSTITUTION:A control system consists of a target value estimation system 3 which estimates the target value (r) of the controlled variable (y) of a control subject 1, a model identification system 4 which identifies a nonlinear regression model of the subject 1, a controlled variable estimation system 5 which estimates the controlled variable (y) based on the identified regression model, and an estimated control system 2 which controls the subject 1 based on the estimated values (r) and (y). The system 4 identifies a model which obtains an estimated output variable of the subject 1 based on the time series signal of an input/output variable of the subject 1. The nonlinear regression model is attained by a neural circuit network, and a manipulated variable optimum to the characteristic change of a plant which is caused by the lapse of time or the disturbance. Thus the controllability is improved. Furthermore the operation data on the plant is applied to the learning of the neutral circuit network. Then a nonlinear regression model is identified in an on-line system to deal with the characteristic change of the plant due to the lapse of time or the disturbance.
Inventors:
NOMURA MASAHIDE
SAITO TADAYOSHI
MATSUMOTO HIROSHI
MIYAGAKI HISANORI
SUGANO AKIRA
SAITO TADAYOSHI
MATSUMOTO HIROSHI
MIYAGAKI HISANORI
SUGANO AKIRA
Application Number:
JP31749689A
Publication Date:
August 05, 1991
Filing Date:
December 08, 1989
Export Citation:
Assignee:
HITACHI LTD
International Classes:
F01K13/02; G05B13/02; (IPC1-7): F01K13/02; G05B13/02
Attorney, Agent or Firm:
Katsuo Ogawa (2 outside)