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SE8701008D0 - IMPROVED CONTROL METHOD OF AN AC INDUCTION MOTOR AND DEVICE THEREFOR - Google Patents

IMPROVED CONTROL METHOD OF AN AC INDUCTION MOTOR AND DEVICE THEREFOR

Info

Publication number
SE8701008D0
SE8701008D0 SE8701008A SE8701008A SE8701008D0 SE 8701008 D0 SE8701008 D0 SE 8701008D0 SE 8701008 A SE8701008 A SE 8701008A SE 8701008 A SE8701008 A SE 8701008A SE 8701008 D0 SE8701008 D0 SE 8701008D0
Authority
SE
Sweden
Prior art keywords
induction motor
sine
motor
voltage
supply voltage
Prior art date
Application number
SE8701008A
Other languages
Swedish (sv)
Other versions
SE8701008L (en
Inventor
Ragnar Jonsson
Original Assignee
Ragnar Jonsson
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 Ragnar Jonsson filed Critical Ragnar Jonsson
Priority to SE8701008A priority Critical patent/SE8701008L/en
Publication of SE8701008D0 publication Critical patent/SE8701008D0/en
Priority to AU14877/88A priority patent/AU1487788A/en
Priority to EP88902606A priority patent/EP0349568A1/en
Priority to JP88502596A priority patent/JPH02502510A/en
Priority to PCT/SE1988/000124 priority patent/WO1988007287A1/en
Publication of SE8701008L publication Critical patent/SE8701008L/en

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
    • H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
    • H02P29/50—Reduction of harmonics

Landscapes

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

Abstract

Method and device for controlling an AC induction motor at all speeds of the motor including zero speed. The supply voltage is modulated with a sine-shaped signal with a predetermined frequency in order to generate a stator magnetic field and a rotor current. The supply voltage (uS) is distorted so that the magnetizing portion of the voltage (VL) will be sine-shaped. If this condition is fulfilled, compensation is achieved for such errors as the nonlinear magnetizing properties of the iron at beginning saturation and further sources of moment ripple is eleminated. The invention relates to voltage control of the induction motor in spite of the fact that the torque is generated by the current through the windings. The distortion of the voltages can take place in different ways and sine and cosine tables with adjusted values are described. A complete mathematical analysis of the motor model of the AC induction motor is given including the stator and rotor leakage inductances.
SE8701008A 1987-03-11 1987-03-11 IMPROVED CONTROL PROCEDURE FOR AN AC AC MOTOR AND DEVICE THEREOF SE8701008L (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE8701008A SE8701008L (en) 1987-03-11 1987-03-11 IMPROVED CONTROL PROCEDURE FOR AN AC AC MOTOR AND DEVICE THEREOF
AU14877/88A AU1487788A (en) 1987-03-11 1988-03-11 Improved control method of an ac induction motor and device therefor
EP88902606A EP0349568A1 (en) 1987-03-11 1988-03-11 Improved control method of an ac induction motor and device therefor
JP88502596A JPH02502510A (en) 1987-03-11 1988-03-11 Improved control method for AC induction motor and device therefor
PCT/SE1988/000124 WO1988007287A1 (en) 1987-03-11 1988-03-11 Improved control method of an ac induction motor and device therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8701008A SE8701008L (en) 1987-03-11 1987-03-11 IMPROVED CONTROL PROCEDURE FOR AN AC AC MOTOR AND DEVICE THEREOF

Publications (2)

Publication Number Publication Date
SE8701008D0 true SE8701008D0 (en) 1987-03-11
SE8701008L SE8701008L (en) 1988-09-12

Family

ID=20367830

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8701008A SE8701008L (en) 1987-03-11 1987-03-11 IMPROVED CONTROL PROCEDURE FOR AN AC AC MOTOR AND DEVICE THEREOF

Country Status (5)

Country Link
EP (1) EP0349568A1 (en)
JP (1) JPH02502510A (en)
AU (1) AU1487788A (en)
SE (1) SE8701008L (en)
WO (1) WO1988007287A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9000497L (en) * 1990-02-12 1991-08-13 Ragnar Joensson PROCEDURES AND APPLIANCES FOR CONTROL OF AN ASYNCHRONIC ENGINE THROUGH INDIRECT SEATING OF THE AIR GAS TENSION
JP4800839B2 (en) 2006-05-23 2011-10-26 株式会社デンソー Excitation current control device for field winding type rotating electrical machine for vehicle

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE420141B (en) * 1980-01-08 1981-09-14 Ragnar Georg Jonsson SET AND DEVICE FOR CONTROL OF AN AC POWER ASYNCHRONOUS MOTOR
US4707651A (en) * 1986-07-22 1987-11-17 Westinghouse Electric Corp. Voltage-controlled field-oriented induction motor control system

Also Published As

Publication number Publication date
SE8701008L (en) 1988-09-12
JPH02502510A (en) 1990-08-09
EP0349568A1 (en) 1990-01-10
AU1487788A (en) 1988-10-10
WO1988007287A1 (en) 1988-09-22

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Legal Events

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NAV Patent application has lapsed

Ref document number: 8701008-8

Effective date: 19911001