JPS56155418A - Estimation method for parameter of electric power converter - Google Patents

Estimation method for parameter of electric power converter

Info

Publication number
JPS56155418A
JPS56155418A JP5786180A JP5786180A JPS56155418A JP S56155418 A JPS56155418 A JP S56155418A JP 5786180 A JP5786180 A JP 5786180A JP 5786180 A JP5786180 A JP 5786180A JP S56155418 A JPS56155418 A JP S56155418A
Authority
JP
Japan
Prior art keywords
electric power
power converter
current
time
ignition pulses
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.)
Granted
Application number
JP5786180A
Other languages
Japanese (ja)
Other versions
JPS642965B2 (en
Inventor
Tsutomu Omae
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
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 JP5786180A priority Critical patent/JPS56155418A/en
Publication of JPS56155418A publication Critical patent/JPS56155418A/en
Publication of JPS642965B2 publication Critical patent/JPS642965B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
    • G05F1/40—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices
    • G05F1/44—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only
    • G05F1/45—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only being controlled rectifiers in series with the load

Abstract

PURPOSE:To make estimation and operation of parameters possible during control operation by estimating the parameters by the integrated value of the load current of one period when ignition pulses are applied to an electric power converter and the current difference at the points of time when the ignition pulses are applied previously and this time per period. CONSTITUTION:The parameters of an electric power converter 1 is estimated by the integrated value of the load current of one period when ignition pulses are applied to the electric power converter 1 and the difference in load current between the points of time when the ignition pulses are applied previously and this time per period. For example, the voltage of an AC power source 2 is converted to direct current by the converter 1 and this direct current is supplied to an induction load 3, thereby controlling the ignition phase of a thyristor in such a manner that load current If coincides with a command value IC. In such a case, a detected current value (i) is inputted to a microcomputer (muCPU)13 via an integrator 11 and A-D converters 10, 12; at the same time, the ignition pulses and clock pulses are inputted to the muCPU13 so that prescribed operations are carried out. The results thereof are outputted as the estimated values of a gain K and a time constant T via D-A converters 16, 17.
JP5786180A 1980-05-02 1980-05-02 Estimation method for parameter of electric power converter Granted JPS56155418A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5786180A JPS56155418A (en) 1980-05-02 1980-05-02 Estimation method for parameter of electric power converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5786180A JPS56155418A (en) 1980-05-02 1980-05-02 Estimation method for parameter of electric power converter

Publications (2)

Publication Number Publication Date
JPS56155418A true JPS56155418A (en) 1981-12-01
JPS642965B2 JPS642965B2 (en) 1989-01-19

Family

ID=13067769

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5786180A Granted JPS56155418A (en) 1980-05-02 1980-05-02 Estimation method for parameter of electric power converter

Country Status (1)

Country Link
JP (1) JPS56155418A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60207491A (en) * 1984-03-31 1985-10-19 Toshiba Corp Controlling method of chopper device
JP2000014143A (en) * 1998-06-17 2000-01-14 Tdk Corp Switching power supply

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60207491A (en) * 1984-03-31 1985-10-19 Toshiba Corp Controlling method of chopper device
JP2000014143A (en) * 1998-06-17 2000-01-14 Tdk Corp Switching power supply

Also Published As

Publication number Publication date
JPS642965B2 (en) 1989-01-19

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