Title:
PLANT CONTROLLING METHOD
Document Type and Number:
Japanese Patent JPS58163003
Kind Code:
A
Abstract:
PURPOSE:To realize the effective control of a plant, by identifying successively the models of the plant with a one-to-integer control period and then using these models to identify a model which has its transition of state with the same period as the control period. CONSTITUTION:A turbine steam current demand FMSD given from a generator output controller controls a primary steam control valve 416 via a turbine controller 301. Furthermore a master controller 200 obtains the changing modulus LDR of load demand LD and the changing modulus TWWR of steam temperature TWW at the furnace water wall outlet. These obtained moduli are given to an optimum control system 100 incorporated to model. The system 100 defines the modulus LDR as the disturbance and then the primary steam temperature deviation TMSE, the modulus TWWR and the reheated steam temperature deviation TRSE given from the controller 200 as the control quantity. Thus the models combining the disturbance generating processes and controlled systems are successively identified, and the controlled system is controlled by means of a secondary type evaluation function.
Inventors:
NOMURA MASAHIDE
SATOU YOSHIO
SATOU YOSHIO
Application Number:
JP4470982A
Publication Date:
September 27, 1983
Filing Date:
March 23, 1982
Export Citation:
Assignee:
HITACHI LTD
International Classes:
G05B13/00; G05B13/04; (IPC1-7): G05B13/04
Domestic Patent References:
| JPS5140220A | 1976-04-03 | |||
| JPS55116102A | 1980-09-06 | |||
| JPS5723108A | 1982-02-06 |
Attorney, Agent or Firm:
Masami Akimoto