JPS55144789A - Variable speed control device - Google Patents

Variable speed control device

Info

Publication number
JPS55144789A
JPS55144789A JP5151479A JP5151479A JPS55144789A JP S55144789 A JPS55144789 A JP S55144789A JP 5151479 A JP5151479 A JP 5151479A JP 5151479 A JP5151479 A JP 5151479A JP S55144789 A JPS55144789 A JP S55144789A
Authority
JP
Japan
Prior art keywords
value
amplifier
speed control
speed
circuit
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
JP5151479A
Other languages
Japanese (ja)
Inventor
Tsunehiko Tejima
Isao Fukushima
Kenji Sato
Hideo Nishijima
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 JP5151479A priority Critical patent/JPS55144789A/en
Publication of JPS55144789A publication Critical patent/JPS55144789A/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
    • H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
    • H02P23/16—Controlling the angular speed of one shaft

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

PURPOSE:To obtain a speed control circuit stably adaptable to various speeds by setting gains proportional to the speeds for the amplifier in the speed control circuit. CONSTITUTION:The number of revolutions of an object to be controlled 3 is detected by a revolution detector 4, converted into a value which has a fixed relation to the revolution number by a frequency discriminator 5, and allowed to feedback to a comparator 1 through an amplifier 6 and a compensating circuit 7. The comparator 1 supplies the deviation between a desired value from a desired value-generating circuit 8 and the detected value to the object to be controlled 3 through an amplifier 2. A gain-setting circuit 9 detects a value proportional to the speed from the frequency discriminator 5, and sets a gain for the amplifier 6 by using the value. This provides a control stably adaptable to each speed.
JP5151479A 1979-04-27 1979-04-27 Variable speed control device Pending JPS55144789A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5151479A JPS55144789A (en) 1979-04-27 1979-04-27 Variable speed control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5151479A JPS55144789A (en) 1979-04-27 1979-04-27 Variable speed control device

Publications (1)

Publication Number Publication Date
JPS55144789A true JPS55144789A (en) 1980-11-11

Family

ID=12889107

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5151479A Pending JPS55144789A (en) 1979-04-27 1979-04-27 Variable speed control device

Country Status (1)

Country Link
JP (1) JPS55144789A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58130784A (en) * 1982-01-26 1983-08-04 Matsushita Electric Ind Co Ltd Controller for motor
JPS58165688A (en) * 1982-03-26 1983-09-30 Hitachi Ltd Control circuit for disc motor
JPS58215979A (en) * 1982-06-09 1983-12-15 Canon Inc Rotating controller for motor
JP2006248653A (en) * 2005-03-09 2006-09-21 Sanken Electric Co Ltd Method and device for controlling speed of winding device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58130784A (en) * 1982-01-26 1983-08-04 Matsushita Electric Ind Co Ltd Controller for motor
JPH0210673B2 (en) * 1982-01-26 1990-03-09 Matsushita Electric Ind Co Ltd
JPS58165688A (en) * 1982-03-26 1983-09-30 Hitachi Ltd Control circuit for disc motor
JPS58215979A (en) * 1982-06-09 1983-12-15 Canon Inc Rotating controller for motor
JP2006248653A (en) * 2005-03-09 2006-09-21 Sanken Electric Co Ltd Method and device for controlling speed of winding device

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