FR2412978A1 - Control of async. motor fed from frequency converter - using measured current value in intermediate circuit or in input to converter only to limit intermediate circuit current - Google Patents

Control of async. motor fed from frequency converter - using measured current value in intermediate circuit or in input to converter only to limit intermediate circuit current

Info

Publication number
FR2412978A1
FR2412978A1 FR7835507A FR7835507A FR2412978A1 FR 2412978 A1 FR2412978 A1 FR 2412978A1 FR 7835507 A FR7835507 A FR 7835507A FR 7835507 A FR7835507 A FR 7835507A FR 2412978 A1 FR2412978 A1 FR 2412978A1
Authority
FR
France
Prior art keywords
intermediate circuit
converter
current
control
async
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
FR7835507A
Other languages
French (fr)
Other versions
FR2412978B1 (en
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.)
BBC Brown Boveri AG Switzerland
Original Assignee
BBC Brown Boveri AG Switzerland
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 BBC Brown Boveri AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Publication of FR2412978A1 publication Critical patent/FR2412978A1/en
Application granted granted Critical
Publication of FR2412978B1 publication Critical patent/FR2412978B1/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
    • H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
    • H02P23/08—Controlling based on slip frequency, e.g. adding slip frequency and speed proportional frequency

Landscapes

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

Abstract

The performance and utilisation of a converter used to control a variable frequency asynchronous motor. Are improved. Dynamic motor contrl is ensured at high frequencies and low currents. The impressed direct current (Id) between rectifier (T1...T6) and inverter (T11...T16) is made dependant upon the required motr current for the particular speed and load point at which it is desired to operate. Measurement of the direct current (IBist) is only used as a limiting signal for the dc circuit. The required motor current (Isoll) may be determined from a characteristic simulator (11) and a knowledge of required and actual speed and actual current (Imist).
FR7835507A 1977-12-21 1978-12-18 Control of async. motor fed from frequency converter - using measured current value in intermediate circuit or in input to converter only to limit intermediate circuit current Granted FR2412978A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772756918 DE2756918A1 (en) 1977-12-21 1977-12-21 PROCEDURE FOR CONTROLLING AND REGULATING THE SPEED OF A INVERTER-SUPPLIED ASYNCHRONOUS MACHINE

Publications (2)

Publication Number Publication Date
FR2412978A1 true FR2412978A1 (en) 1979-07-20
FR2412978B1 FR2412978B1 (en) 1982-03-19

Family

ID=6026675

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7835507A Granted FR2412978A1 (en) 1977-12-21 1978-12-18 Control of async. motor fed from frequency converter - using measured current value in intermediate circuit or in input to converter only to limit intermediate circuit current

Country Status (3)

Country Link
AR (1) AR224865A1 (en)
DE (1) DE2756918A1 (en)
FR (1) FR2412978A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2536604A1 (en) * 1982-11-19 1984-05-25 Signaux Entr Electriques Method and device for controlling the supply to an asynchronous motor usable in particular as an actuator.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3983463A (en) * 1973-08-31 1976-09-28 Tokyo Shibaura Denki Kabushiki Kaisha Method and apparatus for controlling the speed of induction motors
US4019105A (en) * 1975-09-26 1977-04-19 General Electric Company Controlled current induction motor drive
FR2350724A1 (en) * 1976-05-04 1977-12-02 Bbc Brown Boveri & Cie Async. inverter supplied motor - has torque only controlled by motor current when at constant slip frequency

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3983463A (en) * 1973-08-31 1976-09-28 Tokyo Shibaura Denki Kabushiki Kaisha Method and apparatus for controlling the speed of induction motors
US4019105A (en) * 1975-09-26 1977-04-19 General Electric Company Controlled current induction motor drive
FR2350724A1 (en) * 1976-05-04 1977-12-02 Bbc Brown Boveri & Cie Async. inverter supplied motor - has torque only controlled by motor current when at constant slip frequency

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/72 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2536604A1 (en) * 1982-11-19 1984-05-25 Signaux Entr Electriques Method and device for controlling the supply to an asynchronous motor usable in particular as an actuator.

Also Published As

Publication number Publication date
FR2412978B1 (en) 1982-03-19
DE2756918A1 (en) 1979-07-05
AR224865A1 (en) 1982-01-29

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Legal Events

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