JPS57180387A - Speed controller for induction motor - Google Patents

Speed controller for induction motor

Info

Publication number
JPS57180387A
JPS57180387A JP56065998A JP6599881A JPS57180387A JP S57180387 A JPS57180387 A JP S57180387A JP 56065998 A JP56065998 A JP 56065998A JP 6599881 A JP6599881 A JP 6599881A JP S57180387 A JPS57180387 A JP S57180387A
Authority
JP
Japan
Prior art keywords
output
speed
vfc
controller
motor
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
JP56065998A
Other languages
Japanese (ja)
Inventor
Juichi Tanaka
Iwao Akeyoshi
Itsuo Yuzurihara
Toshiaki Kaneko
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.)
Kyosan Electric Manufacturing Co Ltd
Original Assignee
Kyosan Electric Manufacturing 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 Kyosan Electric Manufacturing Co Ltd filed Critical Kyosan Electric Manufacturing Co Ltd
Priority to JP56065998A priority Critical patent/JPS57180387A/en
Publication of JPS57180387A publication Critical patent/JPS57180387A/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
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/048—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using AC supply for only the rotor circuit or only the stator circuit
    • 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
    • H02P2207/00—Indexing scheme relating to controlling arrangements characterised by the type of motor
    • H02P2207/01—Asynchronous machines

Landscapes

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

Abstract

PURPOSE:To stably vary the rotating speed of an induction motor with a simple circuit by setting a constant slip state even at the time of varying the speed of the motor. CONSTITUTION:A variable voltage and variable frequency controller VFC is provided at the power source side of an induction motor IM. A speed operational amplifier SOP obtains a difference between the speed signal detecting the rotating speed of the motor IM and a speed instruction signal, and a current operational amplifier IOP obtains the primary current of the motor IM based on the output and an exciting current setting signal, thereby controlling the output voltage of the controller VFC. An adder ADD adds the speed signal and a slip amount signal based on the output of the amplifier SOP and controls the output frequency of the controller VFC. A comparator CP negatively feeds back a primary current detected from the output side of the controller VFC to the amplifier SOP, a differential circuit DF differentiates the output of the adder ADD, and negatively feeds back it to the amplifier SOP.
JP56065998A 1981-04-30 1981-04-30 Speed controller for induction motor Pending JPS57180387A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56065998A JPS57180387A (en) 1981-04-30 1981-04-30 Speed controller for induction motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56065998A JPS57180387A (en) 1981-04-30 1981-04-30 Speed controller for induction motor

Publications (1)

Publication Number Publication Date
JPS57180387A true JPS57180387A (en) 1982-11-06

Family

ID=13303177

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56065998A Pending JPS57180387A (en) 1981-04-30 1981-04-30 Speed controller for induction motor

Country Status (1)

Country Link
JP (1) JPS57180387A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4227176A1 (en) * 1991-08-17 1993-02-18 Samsung Electronics Co Ltd METHOD FOR REGULATING THE SLIP ANGLE SPEED OF AN INDUCTION MOTOR
FR2681483A1 (en) * 1991-09-18 1993-03-19 Samsung Electronics Co Ltd Induction motor control circuit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4227176A1 (en) * 1991-08-17 1993-02-18 Samsung Electronics Co Ltd METHOD FOR REGULATING THE SLIP ANGLE SPEED OF AN INDUCTION MOTOR
FR2681194A1 (en) * 1991-08-17 1993-03-12 Samsung Electronics Co Ltd METHOD FOR DETERMINING THE ANGULAR SLIDING SPEED OF AN INDUCTION MOTOR.
US5278486A (en) * 1991-08-17 1994-01-11 Samsung Electronics Co., Ltd. Method of operating slip angular velocity of induction motor
FR2681483A1 (en) * 1991-09-18 1993-03-19 Samsung Electronics Co Ltd Induction motor control circuit
US5278485A (en) * 1991-09-18 1994-01-11 Samsung Electronics Co., Ltd. Control circuit for induction motor

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