FR2321798A1 - Power supply for variable speed induction motor - uses motor flux as principal control parameter for variable frequency inverter - Google Patents

Power supply for variable speed induction motor - uses motor flux as principal control parameter for variable frequency inverter

Info

Publication number
FR2321798A1
FR2321798A1 FR7625154A FR7625154A FR2321798A1 FR 2321798 A1 FR2321798 A1 FR 2321798A1 FR 7625154 A FR7625154 A FR 7625154A FR 7625154 A FR7625154 A FR 7625154A FR 2321798 A1 FR2321798 A1 FR 2321798A1
Authority
FR
France
Prior art keywords
flux
motor
inverter
power supply
frequency
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
FR7625154A
Other languages
French (fr)
Other versions
FR2321798B1 (en
Inventor
Allan Barr Plunkett
John Douglas D Atre
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.)
General Electric Co
Original Assignee
General Electric Co
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
Priority claimed from US05/605,847 external-priority patent/US4044284A/en
Priority claimed from US05/605,848 external-priority patent/US4044285A/en
Application filed by General Electric Co filed Critical General Electric Co
Publication of FR2321798A1 publication Critical patent/FR2321798A1/en
Application granted granted Critical
Publication of FR2321798B1 publication Critical patent/FR2321798B1/fr
Granted 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
    • H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
    • H02P21/06—Rotor flux based control involving the use of rotor position or rotor speed sensors
    • H02P21/10—Direct field-oriented control; Rotor flux feed-back control
    • 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
    • H02P2207/00—Indexing scheme relating to controlling arrangements characterised by the type of motor
    • H02P2207/01—Asynchronous machines

Landscapes

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

Abstract

The induction motor is supplied with variable frequency current from an inverter. The inverter is fed from a d.c. supply produced by a phase controlled rectifier. Motor current control is effected on the rectifier, and speed control on the inverter. As motor torque is a function of flux as well as frequency the motor air gap flux is employed as a control signal. A flux detector converts motor flux into a control signal which is compared with a reference value produced by the command logic. The error is fed through a compensation loop and converted into a control signal to change the inverter frequency such that the flux error tends to zero. Typically the flux error is converted to slip frequency and is compared with actual motor speed to produce the inverter control quantity.
FR7625154A 1975-08-19 1976-08-19 Power supply for variable speed induction motor - uses motor flux as principal control parameter for variable frequency inverter Granted FR2321798A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/605,847 US4044284A (en) 1975-08-19 1975-08-19 Alternating current motor control method and system
US05/605,848 US4044285A (en) 1975-08-19 1975-08-19 Method and apparatus for controlling variable speed, controlled current induction motor drive systems

Publications (2)

Publication Number Publication Date
FR2321798A1 true FR2321798A1 (en) 1977-03-18
FR2321798B1 FR2321798B1 (en) 1983-01-07

Family

ID=27085073

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7625154A Granted FR2321798A1 (en) 1975-08-19 1976-08-19 Power supply for variable speed induction motor - uses motor flux as principal control parameter for variable frequency inverter

Country Status (3)

Country Link
JP (1) JPS6013397B2 (en)
DE (1) DE2637116A1 (en)
FR (1) FR2321798A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2361665A1 (en) * 1976-08-10 1978-03-10 Siemens Ag CIRCUIT FOR THE FORMATION OF AN ELECTRICAL QUANTITY PROPORTIONAL TO A FLOW COMPONENT IN A ROTATING FIELD MACHINE
FR2366740A1 (en) * 1976-10-04 1978-04-28 Gen Electric STABILIZATION DEVICE FOR AN ALTERNATIVE CURRENT ELECTRIC MOTOR DRIVE SYSTEM
FR2410390A1 (en) * 1977-11-25 1979-06-22 Bbc Brown Boveri & Cie METHOD AND CONTROL CIRCUIT OF AN ASYNCHRONOUS MOTOR POWERED BY A STATIC FREQUENCY CONVERTER

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4298831A (en) * 1980-03-24 1981-11-03 General Electric Company Method and apparatus for operating a plurality of parallel coupled, arbitrarily loaded induction machines from a single controlled current inverter
DE3236503A1 (en) * 1982-09-29 1984-03-29 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Control of a phase-sequence invertor on a converter-supplied asynchronous machine
WO1986001654A1 (en) * 1984-08-30 1986-03-13 Fanuc Ltd System for digitally controlling an induction motor
AU586358B2 (en) * 1986-10-08 1989-07-06 Hitachi Limited A control apparatus for an induction motor
DE3804634A1 (en) * 1988-02-15 1989-08-24 Bosch Gmbh Robert Highly dynamic electrical servo drive with a plurality of asynchronous machines
CN108233811B (en) * 2018-03-09 2023-08-01 核工业理化工程研究院 Control method and control system of sensorless permanent magnet synchronous motor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2292369A1 (en) * 1974-11-20 1976-06-18 Gen Electric MAGNETIC FLOW ADJUSTMENT DEVICE IN AN ALTERNATIVE CURRENT MOTOR

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1438511B2 (en) * 1962-03-15 1970-11-12 Licentia Patent-Verwaltungs-GmbH, 6000 Prankfurt Method for operating a three-phase current controlled asynchronous machine with squirrel cage rotor and arrangement for carrying out the method
DE1563228B2 (en) * 1966-07-05 1972-04-06 Licentia Patent Verwaltungs GmbH, 6000 Frankfurt METHOD OF CONTROLLING THE TORQUE DELIVERED BY AN ASYNCHRONOUS MACHINE

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2292369A1 (en) * 1974-11-20 1976-06-18 Gen Electric MAGNETIC FLOW ADJUSTMENT DEVICE IN AN ALTERNATIVE CURRENT MOTOR

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NV8130/73 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2361665A1 (en) * 1976-08-10 1978-03-10 Siemens Ag CIRCUIT FOR THE FORMATION OF AN ELECTRICAL QUANTITY PROPORTIONAL TO A FLOW COMPONENT IN A ROTATING FIELD MACHINE
FR2366740A1 (en) * 1976-10-04 1978-04-28 Gen Electric STABILIZATION DEVICE FOR AN ALTERNATIVE CURRENT ELECTRIC MOTOR DRIVE SYSTEM
FR2410390A1 (en) * 1977-11-25 1979-06-22 Bbc Brown Boveri & Cie METHOD AND CONTROL CIRCUIT OF AN ASYNCHRONOUS MOTOR POWERED BY A STATIC FREQUENCY CONVERTER

Also Published As

Publication number Publication date
DE2637116A1 (en) 1977-03-03
JPS5232523A (en) 1977-03-11
FR2321798B1 (en) 1983-01-07
JPS6013397B2 (en) 1985-04-06

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Legal Events

Date Code Title Description
ST Notification of lapse