JPS5765297A - Controller for synchronous motor - Google Patents

Controller for synchronous motor

Info

Publication number
JPS5765297A
JPS5765297A JP55139849A JP13984980A JPS5765297A JP S5765297 A JPS5765297 A JP S5765297A JP 55139849 A JP55139849 A JP 55139849A JP 13984980 A JP13984980 A JP 13984980A JP S5765297 A JPS5765297 A JP S5765297A
Authority
JP
Japan
Prior art keywords
circuit
value
power factor
set value
detecting
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
JP55139849A
Other languages
Japanese (ja)
Other versions
JPS6036719B2 (en
Inventor
Yoshio Sekiyama
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 JP55139849A priority Critical patent/JPS6036719B2/en
Publication of JPS5765297A publication Critical patent/JPS5765297A/en
Publication of JPS6036719B2 publication Critical patent/JPS6036719B2/en
Expired 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 control the synchronous motor stably by suspending the control of a power factor when load reaches set value or lower and setting field currents to a predetermined value. CONSTITUTION:When the detecting value of an active power detecting circuit 10 is the set value or lower, a relay 15 is not actuated and a contact 16 is closed to the b side. In this case, deviation between power factor actual value detected by means of a power factor detecting circuit 8 and the power factor set value of a power factor setting circuit 6 is added to a phase control circuit 5. The base control circuit 5 determines ignition phase in response to the deviation of the power factors, and gives a thyristor transducer 3 ignition pulses from an ignition circuit 4. When the detecting value of the active power detecting circuit 10 reaches the set value or lower, the relay 15 is activated, and the contact 16 is closed to the a side. Accordingly, set value from a current setting circuit 17 is added to the phase control circuit 5, and the phase control circuit 5 controls the thyristor transducer 3 in ignition phase in which field currents reach a prescribed value.
JP55139849A 1980-10-08 1980-10-08 Synchronous motor control device Expired JPS6036719B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55139849A JPS6036719B2 (en) 1980-10-08 1980-10-08 Synchronous motor control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55139849A JPS6036719B2 (en) 1980-10-08 1980-10-08 Synchronous motor control device

Publications (2)

Publication Number Publication Date
JPS5765297A true JPS5765297A (en) 1982-04-20
JPS6036719B2 JPS6036719B2 (en) 1985-08-22

Family

ID=15254954

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55139849A Expired JPS6036719B2 (en) 1980-10-08 1980-10-08 Synchronous motor control device

Country Status (1)

Country Link
JP (1) JPS6036719B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4438378B2 (en) * 2003-10-28 2010-03-24 日産自動車株式会社 Control device for direct-injection spark-ignition internal combustion engine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53120127A (en) * 1977-03-30 1978-10-20 Toshiba Corp Operation control device for synchronous machine
JPS5532472A (en) * 1978-08-29 1980-03-07 Nippon Kokan Kk <Nkk> Synchronous motor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53120127A (en) * 1977-03-30 1978-10-20 Toshiba Corp Operation control device for synchronous machine
JPS5532472A (en) * 1978-08-29 1980-03-07 Nippon Kokan Kk <Nkk> Synchronous motor

Also Published As

Publication number Publication date
JPS6036719B2 (en) 1985-08-22

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