JPS5698389A - Inverter for driving motor - Google Patents

Inverter for driving motor

Info

Publication number
JPS5698389A
JPS5698389A JP12180A JP12180A JPS5698389A JP S5698389 A JPS5698389 A JP S5698389A JP 12180 A JP12180 A JP 12180A JP 12180 A JP12180 A JP 12180A JP S5698389 A JPS5698389 A JP S5698389A
Authority
JP
Japan
Prior art keywords
component
current
inverter
variation
detector
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
JP12180A
Other languages
Japanese (ja)
Other versions
JPS6355314B2 (en
Inventor
Toshiaki Okuyama
Hiroshi Nagase
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 JP12180A priority Critical patent/JPS5698389A/en
Publication of JPS5698389A publication Critical patent/JPS5698389A/en
Publication of JPS6355314B2 publication Critical patent/JPS6355314B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Inverter Devices (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

PURPOSE:To eliminate the variation in the control characteristics the inverter irrespective of the variation in the secondary resistor in response to temperature by detecting the torque operation of the primary current of and exciting current component of the motor and controlling slip frequency and primary voltage thereof. CONSTITUTION:An induction motor 4 is energized through a PWM inverter 3. Its torque operation component is picked up on the basis of the primary current dtected by a current detector 8, the motor speed of the speed detector 8, and a command of a speed instructing circit 5, and are applied through 2-phase oscillator 12 to multipliers 16, 17. On the other hand, exciting current component is synthesized with the torque operation component through the multiplier 15 with the difference signal between the current component detector 9 and the exciting current instructing circuit 13, and the inverter 3 is controlled through a comparator 20 and a gate amplifier 21. Since the secondary resistance is accordingly varied according to the temperature, the effective component of the primary current can be controlled to predetermined value, and the variation in the torque can be prevented beforehand.
JP12180A 1980-01-07 1980-01-07 Inverter for driving motor Granted JPS5698389A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12180A JPS5698389A (en) 1980-01-07 1980-01-07 Inverter for driving motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12180A JPS5698389A (en) 1980-01-07 1980-01-07 Inverter for driving motor

Publications (2)

Publication Number Publication Date
JPS5698389A true JPS5698389A (en) 1981-08-07
JPS6355314B2 JPS6355314B2 (en) 1988-11-01

Family

ID=11465201

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12180A Granted JPS5698389A (en) 1980-01-07 1980-01-07 Inverter for driving motor

Country Status (1)

Country Link
JP (1) JPS5698389A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60210188A (en) * 1983-12-30 1985-10-22 コルモーゲン　コーポレイション Slip control system of induction motor
ES2111452A1 (en) * 1994-06-24 1998-03-01 Finmeccanica Spa Motor speed regulation with temperature compensation

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS484918A (en) * 1971-05-28 1973-01-22

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS484918A (en) * 1971-05-28 1973-01-22

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60210188A (en) * 1983-12-30 1985-10-22 コルモーゲン　コーポレイション Slip control system of induction motor
ES2111452A1 (en) * 1994-06-24 1998-03-01 Finmeccanica Spa Motor speed regulation with temperature compensation

Also Published As

Publication number Publication date
JPS6355314B2 (en) 1988-11-01

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