JPS5778392A - Control system of margin angle of commutation for commutatorless motor - Google Patents

Control system of margin angle of commutation for commutatorless motor

Info

Publication number
JPS5778392A
JPS5778392A JP55152118A JP15211880A JPS5778392A JP S5778392 A JPS5778392 A JP S5778392A JP 55152118 A JP55152118 A JP 55152118A JP 15211880 A JP15211880 A JP 15211880A JP S5778392 A JPS5778392 A JP S5778392A
Authority
JP
Japan
Prior art keywords
angle
commutation margin
margin angle
gammaf
commutation
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
JP55152118A
Other languages
Japanese (ja)
Other versions
JPS6226273B2 (en
Inventor
Yuji Jinbo
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.)
Toyo Denki Seizo KK
Toyo Electric Manufacturing Ltd
Original Assignee
Toyo Denki Seizo KK
Toyo Electric Manufacturing 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 Toyo Denki Seizo KK, Toyo Electric Manufacturing Ltd filed Critical Toyo Denki Seizo KK
Priority to JP55152118A priority Critical patent/JPS5778392A/en
Publication of JPS5778392A publication Critical patent/JPS5778392A/en
Publication of JPS6226273B2 publication Critical patent/JPS6226273B2/ja
Granted 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

PURPOSE:To provide a stable commutation margin angle control for a commutatorless motor by a method wherein the minimum of the commutation margin angles digitally detected in a prescribed period of time is compared with a predetermined commutation margin angle and a lead angle is computed for determining control to counter the deviation. CONSTITUTION:The commutation margin angle of a commutatorless motor is digitally measured every 60 electrical degrees by a commutation margin angle detecting circuit 6, the value obtained thereby supplied together with the output (d) of a selective circuit 9 and a determined commutation margin angle gammaref to an arithmetic unit 7. The arithmetic unit 7, on receiving a sample signal (signal of an electrical angle of 60 deg. in the motor) that establishes the initial value, inputs a detected commutation margin angle gammaf in the zero address and then inputs the outputted value of (d) or the gammaref, and then computes the deviation of the commutation margin angle by scanning the addresses zero through (d) for the small value gammaf(min) and determines the lead angle beta0 to be used for controlling. Then the gammaf storage is moved to a place on address down, the arithmetic unit 7 ready to receive a next sample signal. In this way, the beta0 is determined always in reference to the minimum of the gammaf values.
JP55152118A 1980-10-31 1980-10-31 Control system of margin angle of commutation for commutatorless motor Granted JPS5778392A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55152118A JPS5778392A (en) 1980-10-31 1980-10-31 Control system of margin angle of commutation for commutatorless motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55152118A JPS5778392A (en) 1980-10-31 1980-10-31 Control system of margin angle of commutation for commutatorless motor

Publications (2)

Publication Number Publication Date
JPS5778392A true JPS5778392A (en) 1982-05-17
JPS6226273B2 JPS6226273B2 (en) 1987-06-08

Family

ID=15533447

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55152118A Granted JPS5778392A (en) 1980-10-31 1980-10-31 Control system of margin angle of commutation for commutatorless motor

Country Status (1)

Country Link
JP (1) JPS5778392A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5956883A (en) * 1982-09-25 1984-04-02 Toshiba Corp Commutatorless motor device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5956883A (en) * 1982-09-25 1984-04-02 Toshiba Corp Commutatorless motor device

Also Published As

Publication number Publication date
JPS6226273B2 (en) 1987-06-08

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