WO2018069865A3 - Flux observer for induction motor and flux estimation method for induction motor - Google Patents

Flux observer for induction motor and flux estimation method for induction motor Download PDF

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Publication number
WO2018069865A3
WO2018069865A3 PCT/IB2017/056323 IB2017056323W WO2018069865A3 WO 2018069865 A3 WO2018069865 A3 WO 2018069865A3 IB 2017056323 W IB2017056323 W IB 2017056323W WO 2018069865 A3 WO2018069865 A3 WO 2018069865A3
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WO
WIPO (PCT)
Prior art keywords
flux
induction motor
observer
estimation method
estimated rotor
Prior art date
Application number
PCT/IB2017/056323
Other languages
French (fr)
Korean (ko)
Other versions
WO2018069865A2 (en
Inventor
최종우
조권재
Original Assignee
경북대학교 산학협력단
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.)
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Application filed by 경북대학교 산학협력단 filed Critical 경북대학교 산학협력단
Publication of WO2018069865A2 publication Critical patent/WO2018069865A2/en
Publication of WO2018069865A3 publication Critical patent/WO2018069865A3/en

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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
    • H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
    • H02P21/14—Estimation or adaptation of machine parameters, e.g. flux, current or voltage
    • H02P21/141—Flux estimation
    • 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
    • H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
    • H02P21/14—Estimation or adaptation of machine parameters, e.g. flux, current or voltage

Landscapes

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

Abstract

Disclosed are a flux observer for an induction motor, and a flux estimation method for an induction motor. The flux estimation method for the induction motor is characterized by including: a step in which a current model flux observer receives input of a stator current to calculate a current model-estimated rotor flux; a step in which a Gopinath flux observer including a current model flux observer receives input of a stator voltage and a stator current to calculate a Gopinath model-estimated rotor flux; a step in which a first calculator calculates a first flux that is corrected by multiplying the calculated Gopinath model-estimated rotor flux by a first gain value; and a step in which a second calculator calculates a second flux that is corrected by multiplying the calculated current model-estimated rotor flux by a second gain value; and a step in which the first totalizer calculates a final estimated rotor flux (I) by adding the corrected first flux and the corrected second flux.
PCT/IB2017/056323 2016-10-12 2017-10-12 Flux observer for induction motor and flux estimation method for induction motor WO2018069865A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2016-0132091 2016-10-12
KR1020160132091A KR101845412B1 (en) 2016-10-12 2016-10-12 Flux Observer of Induction Motor and Estimating Method Thereof

Publications (2)

Publication Number Publication Date
WO2018069865A2 WO2018069865A2 (en) 2018-04-19
WO2018069865A3 true WO2018069865A3 (en) 2018-06-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2017/056323 WO2018069865A2 (en) 2016-10-12 2017-10-12 Flux observer for induction motor and flux estimation method for induction motor

Country Status (2)

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KR (1) KR101845412B1 (en)
WO (1) WO2018069865A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10840841B2 (en) * 2018-09-27 2020-11-17 Tmeic Corporation Control device for power conversion device, control method, and motor drive system
KR102494504B1 (en) * 2020-06-01 2023-02-02 경북대학교 산학협력단 Sensorless control flux estimator and estinating method thereof
CN113395028B (en) * 2021-07-28 2022-06-28 华北电力大学 Method for forming flux linkage observer based on voltage and current hybrid model

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060014541A (en) * 2004-08-11 2006-02-16 학교법인 울산공업학원 Rotor time constant estimation apparatus for induction motor direct vector control, and induction motor direct vector control using the proposed apparatus
KR101376389B1 (en) * 2010-11-30 2014-03-20 엘에스산전 주식회사 Flux controller for induction motor
KR20140120649A (en) * 2013-04-04 2014-10-14 엘에스산전 주식회사 Sensorless vector control apparatus for induction motor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060014541A (en) * 2004-08-11 2006-02-16 학교법인 울산공업학원 Rotor time constant estimation apparatus for induction motor direct vector control, and induction motor direct vector control using the proposed apparatus
KR101376389B1 (en) * 2010-11-30 2014-03-20 엘에스산전 주식회사 Flux controller for induction motor
KR20140120649A (en) * 2013-04-04 2014-10-14 엘에스산전 주식회사 Sensorless vector control apparatus for induction motor

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
BAE, SANG-JUN ET AL.: "Rotor Time Constant Estimation for Induction Motor Direct Vector Control", THE TRANSACTIONS OF THE KOREAN INSTITUTE OF POWER ELECTRONICS, vol. 9, no. 5, 1 October 2004 (2004-10-01), pages 413 - 419 *
JO, GWON-JAE ET AL: "Realization of Voltage Model Flux Observer by using the Closed-loop Gopinath Flux Obeserver of Induction Motors", PROCEEDINGS OF THE KOREAN INSTTUTE OF ELECTRICAL ENGINEERS (KIEE) CONFERENCE, 23 October 2015 (2015-10-23), pages 183 - 186 *

Also Published As

Publication number Publication date
WO2018069865A2 (en) 2018-04-19
KR101845412B1 (en) 2018-04-04

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