JPS56153992A - Controlling device of motor - Google Patents

Controlling device of motor

Info

Publication number
JPS56153992A
JPS56153992A JP4238081A JP4238081A JPS56153992A JP S56153992 A JPS56153992 A JP S56153992A JP 4238081 A JP4238081 A JP 4238081A JP 4238081 A JP4238081 A JP 4238081A JP S56153992 A JPS56153992 A JP S56153992A
Authority
JP
Japan
Prior art keywords
current
increase
armature
amplifier
speed
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
JP4238081A
Other languages
Japanese (ja)
Inventor
Toshiaki Okuyama
Yuzuru Kubota
Kosei Hori
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 JP4238081A priority Critical patent/JPS56153992A/en
Publication of JPS56153992A publication Critical patent/JPS56153992A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
    • H02P25/022—Synchronous motors
    • H02P25/024—Synchronous motors controlled by supply frequency

Abstract

PURPOSE:To securely suppress the variation of an armature voltage due to an armature reaction and to prevent the failure of commutation and the application of overvoltage to an inverter by limiting the varying speed of the armature current of a thyristor motor to meet the varying speed of the field current. CONSTITUTION:When an armature current is increased due to the increase in the load of a synchronous motor 4 and the rise of a speed command signal, the output signal (a current command signal) of a speed deviation amplifier 9 will increase, and the AC input current of a converter 1 tends to increase, but the rate of change of the increase of the armature current is limited to a certain value by the operations of a current detector 10 and a current variation rate feedback amplifier 20. Since the field current is increased upon increase or delay of the output signal of the amplifier 9, the increase of the armature current is accelerated in the amount corresponding to the increase of the field current by the operations of the second function generator 19 and the amplifier 20.
JP4238081A 1981-03-25 1981-03-25 Controlling device of motor Pending JPS56153992A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4238081A JPS56153992A (en) 1981-03-25 1981-03-25 Controlling device of motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4238081A JPS56153992A (en) 1981-03-25 1981-03-25 Controlling device of motor

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP11054174A Division JPS5520479B2 (en) 1974-09-27 1974-09-27

Publications (1)

Publication Number Publication Date
JPS56153992A true JPS56153992A (en) 1981-11-28

Family

ID=12634446

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4238081A Pending JPS56153992A (en) 1981-03-25 1981-03-25 Controlling device of motor

Country Status (1)

Country Link
JP (1) JPS56153992A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62144595A (en) * 1985-12-19 1987-06-27 Fuji Electric Co Ltd Controller for current type inverter

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5043411A (en) * 1973-08-21 1975-04-19

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5043411A (en) * 1973-08-21 1975-04-19

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62144595A (en) * 1985-12-19 1987-06-27 Fuji Electric Co Ltd Controller for current type inverter

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