JPS57119688A - Controlling method for induction motor - Google Patents

Controlling method for induction motor

Info

Publication number
JPS57119688A
JPS57119688A JP56004638A JP463881A JPS57119688A JP S57119688 A JPS57119688 A JP S57119688A JP 56004638 A JP56004638 A JP 56004638A JP 463881 A JP463881 A JP 463881A JP S57119688 A JPS57119688 A JP S57119688A
Authority
JP
Japan
Prior art keywords
overcurrent
value
absorption
deviation
driving
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
JP56004638A
Other languages
Japanese (ja)
Other versions
JPS6038957B2 (en
Inventor
Nariyasu Sekizawa
Tomoyasu Hachiro
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.)
Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
Original Assignee
Meidensha Corp
Meidensha 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 Meidensha Corp, Meidensha Electric Manufacturing Co Ltd filed Critical Meidensha Corp
Priority to JP56004638A priority Critical patent/JPS6038957B2/en
Publication of JPS57119688A publication Critical patent/JPS57119688A/en
Publication of JPS6038957B2 publication Critical patent/JPS6038957B2/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
    • 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
    • H02P27/045—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 whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value

Landscapes

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

Abstract

PURPOSE:To omit a current control amplifier and to facilitate adjustment by a method wherein the positive and negative of speed deviation are judged and an allowable overcurrent deviation value is guided from the subtraction of a driving overcurrent deviation value in positive or an absorption overcurrent deviation value and the primary current. CONSTITUTION:A matching point of a speed setting device 2 and a speed detector 3 is connected to a comparator 31 to operate contacts 31a, 31b and a signal from a minimum value detection circuit 33 or a maximum value detection circuit 35 is supplied to an integrator 36. Meanwhile, the polarity meeting the driving time and absorption time of a motor 1 is fed from a current detector 6 to subtract the output from an overcurrent value at driving side or that at absorption side and the contact 33 or 35 is switched by the circuits 33, 35 through function generators 32, 34 to supply the subtracted value to the integrator 36 and an inverter 9 is controlled. Therefore, a current control loop and an amplifier are omitted and adjustment can be facilitated by providing and forming the only loop.
JP56004638A 1981-01-16 1981-01-16 Control method of induction motor Expired JPS6038957B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56004638A JPS6038957B2 (en) 1981-01-16 1981-01-16 Control method of induction motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56004638A JPS6038957B2 (en) 1981-01-16 1981-01-16 Control method of induction motor

Publications (2)

Publication Number Publication Date
JPS57119688A true JPS57119688A (en) 1982-07-26
JPS6038957B2 JPS6038957B2 (en) 1985-09-03

Family

ID=11589535

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56004638A Expired JPS6038957B2 (en) 1981-01-16 1981-01-16 Control method of induction motor

Country Status (1)

Country Link
JP (1) JPS6038957B2 (en)

Also Published As

Publication number Publication date
JPS6038957B2 (en) 1985-09-03

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