JPS57135699A - Control device for inverter - Google Patents

Control device for inverter

Info

Publication number
JPS57135699A
JPS57135699A JP56020931A JP2093181A JPS57135699A JP S57135699 A JPS57135699 A JP S57135699A JP 56020931 A JP56020931 A JP 56020931A JP 2093181 A JP2093181 A JP 2093181A JP S57135699 A JPS57135699 A JP S57135699A
Authority
JP
Japan
Prior art keywords
motor
polarity
output
input resistor
load
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
JP56020931A
Other languages
Japanese (ja)
Inventor
Kazuyuki Ichimura
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP56020931A priority Critical patent/JPS57135699A/en
Publication of JPS57135699A publication Critical patent/JPS57135699A/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
    • H02P23/20—Controlling the acceleration or deceleration

Landscapes

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

Abstract

PURPOSE:To smoothly accelerate or decelerate a motor by detecting the load current to correct the acceleration or deceleration time, and detecting the power drive and regenerative mode of the motor to switch the polarity of the correcting amount, thereby always producing the optinum torque. CONSTITUTION:A load is increased during acceleration, a load current is increased, and when they exceeds the level of a setter 22, the output of a comparator 21 becomes ''1''. On the other hand, since the motor is driven at the accelerating time so that the phase reference 90 deg., the output of a comparator 26 becomes ''1'', a contact 24a is closed, and the voltage of negative level is applied by a polarity inverter 23 to an input resistor 25, positive level is applied to the input resistor 19, the increase in the frequency reference of the output of an integrator 17 is decelerated, and is set to the value to meet the load. The voltage of the polarity reverse to the polarity at the regenerating and hence accelerating times of the motor is applied to the input resistor 25 of the integrator 17.
JP56020931A 1981-02-17 1981-02-17 Control device for inverter Pending JPS57135699A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56020931A JPS57135699A (en) 1981-02-17 1981-02-17 Control device for inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56020931A JPS57135699A (en) 1981-02-17 1981-02-17 Control device for inverter

Publications (1)

Publication Number Publication Date
JPS57135699A true JPS57135699A (en) 1982-08-21

Family

ID=12040954

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56020931A Pending JPS57135699A (en) 1981-02-17 1981-02-17 Control device for inverter

Country Status (1)

Country Link
JP (1) JPS57135699A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06311788A (en) * 1993-04-16 1994-11-04 Kasuga Denki Kk Control method for inverter stall prevention
DE4425547A1 (en) * 1993-07-20 1995-01-26 Hitachi Ltd Frequency regulating method for an invertor, and a device for this purpose
US8421397B2 (en) 2011-04-11 2013-04-16 Eaton Corporation System and method for fast start-up of an induction motor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5250519A (en) * 1975-10-21 1977-04-22 Toshiba Corp Frequency convertor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5250519A (en) * 1975-10-21 1977-04-22 Toshiba Corp Frequency convertor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06311788A (en) * 1993-04-16 1994-11-04 Kasuga Denki Kk Control method for inverter stall prevention
DE4425547A1 (en) * 1993-07-20 1995-01-26 Hitachi Ltd Frequency regulating method for an invertor, and a device for this purpose
DE4425547C2 (en) * 1993-07-20 1998-08-27 Hitachi Ltd Method for influencing the frequency of an inverter-fed motor
US8421397B2 (en) 2011-04-11 2013-04-16 Eaton Corporation System and method for fast start-up of an induction motor

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