JPS56124907A - Comulative value control method - Google Patents

Comulative value control method

Info

Publication number
JPS56124907A
JPS56124907A JP2665980A JP2665980A JPS56124907A JP S56124907 A JPS56124907 A JP S56124907A JP 2665980 A JP2665980 A JP 2665980A JP 2665980 A JP2665980 A JP 2665980A JP S56124907 A JPS56124907 A JP S56124907A
Authority
JP
Japan
Prior art keywords
integrating
instantaneous
value
target
output
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2665980A
Inventor
Shigeo Hashimoto
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2665980A priority Critical patent/JPS56124907A/en
Publication of JPS56124907A publication Critical patent/JPS56124907A/en
Application status is Pending legal-status Critical

Links

Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B11/00Automatic controllers
    • G05B11/01Automatic controllers electric
    • G05B11/36Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential
    • G05B11/42Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential for obtaining a characteristic which is both proportional and time-dependent, e.g. P.I., P.I.D.

Abstract

PURPOSE:To obtain a satisfactory target value follow-up characteristic and also make an integrating error minimum, by switching the object to be controlled, to an instantaneous value and an integrating value in accordance with the status of a plant. CONSTITUTION:An integrating target value 7 of a prescribed period which has been set is input to the control device 10. An instantaneous target signal is generated from the instantaneous target generator 11, the deviation of this signal and the actual measurement value 8 is derived by the difference operator 12, and the instantaneous manipulated variable 13a is derived by the proportion - integration - differentiation (PID) operator 13. On the other hand, the output of the instantaneous target generator 11 and the output of the actual measurement value 8 become integrating signals 14a, 15a by the target value integrator 14 and the actual measurement value integrator 15, respectively, they are input to the integrating PID operator 17 as an integrating error by the difference operator 16, and the integrating manipulated variable 17a can be obtained. These manipulated variables 13a, 17a are switched by operating the instantaneous/integrating switch 18, and after the target value has been varied, unless a prescribed time has passed, the operation 13a is output, and in other case, the integrating manipulated variable is output.
JP2665980A 1980-03-05 1980-03-05 Comulative value control method Pending JPS56124907A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2665980A JPS56124907A (en) 1980-03-05 1980-03-05 Comulative value control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2665980A JPS56124907A (en) 1980-03-05 1980-03-05 Comulative value control method

Publications (1)

Publication Number Publication Date
JPS56124907A true JPS56124907A (en) 1981-09-30

Family

ID=12199543

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2665980A Pending JPS56124907A (en) 1980-03-05 1980-03-05 Comulative value control method

Country Status (1)

Country Link
JP (1) JPS56124907A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63265525A (en) * 1987-04-22 1988-11-02 Hitachi Ltd Control method of operation of variable-speed pumped-storage power system
EP0449550A2 (en) * 1990-03-27 1991-10-02 Honeywell Inc. Thermostat with means for disabling PID control

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63265525A (en) * 1987-04-22 1988-11-02 Hitachi Ltd Control method of operation of variable-speed pumped-storage power system
EP0449550A2 (en) * 1990-03-27 1991-10-02 Honeywell Inc. Thermostat with means for disabling PID control

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