JPS57151295A - Controller for synchronous motor - Google Patents

Controller for synchronous motor

Info

Publication number
JPS57151295A
JPS57151295A JP56035580A JP3558081A JPS57151295A JP S57151295 A JPS57151295 A JP S57151295A JP 56035580 A JP56035580 A JP 56035580A JP 3558081 A JP3558081 A JP 3558081A JP S57151295 A JPS57151295 A JP S57151295A
Authority
JP
Japan
Prior art keywords
signal
motor
synchronous motor
axis
axis component
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
JP56035580A
Other languages
Japanese (ja)
Inventor
Akira Kawamura
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.)
Shibaura Machine Co Ltd
Original Assignee
Toshiba Machine Co 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 Toshiba Machine Co Ltd filed Critical Toshiba Machine Co Ltd
Priority to JP56035580A priority Critical patent/JPS57151295A/en
Publication of JPS57151295A publication Critical patent/JPS57151295A/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
    • H02P25/03—Synchronous motors with brushless excitation

Abstract

PURPOSE:To improve the responsiveness and the efficiency of a synchronous motor by setting the d-axis component of the armature current of a synchronous motor so that all are q-axis component, and determining the magnitude to have a special relation. CONSTITUTION:The signal of an axial position detector 4 which is integral with a synchronous motor 3 is converted by a speed signal generator 5 into a rotating speed signal, and the difference of the signal from a command signal is obtained by an adder 6. The difference is then applied to a frequency signal generator 7, the output and signals of a memory 8 which stores various characteristic values of the motor 3 and a signal of a vector synthesizer 10 are inputted to a q-axis current calculator 9, which calculates q-axis reactance Xq, and the q-axis current which satisfies (Vsindelta)/Xq, where V represents the power source voltage, and delta represents the internal phase angle obtained by the vector synthesizer 10, thereby controlling the motor 3. Accordingly, the d-axis component of the armature current is set to zero, thereby practically maximizing the power of the motor and controlling it.
JP56035580A 1981-03-12 1981-03-12 Controller for synchronous motor Pending JPS57151295A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56035580A JPS57151295A (en) 1981-03-12 1981-03-12 Controller for synchronous motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56035580A JPS57151295A (en) 1981-03-12 1981-03-12 Controller for synchronous motor

Publications (1)

Publication Number Publication Date
JPS57151295A true JPS57151295A (en) 1982-09-18

Family

ID=12445701

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56035580A Pending JPS57151295A (en) 1981-03-12 1981-03-12 Controller for synchronous motor

Country Status (1)

Country Link
JP (1) JPS57151295A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55144793A (en) * 1979-04-27 1980-11-11 Fuji Electric Co Ltd Variable speed driving system for sinchronous motor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55144793A (en) * 1979-04-27 1980-11-11 Fuji Electric Co Ltd Variable speed driving system for sinchronous motor

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