FR2290781A1 - PROCESS FOR CONTROL OF TORQUE SUPPLIED BY AN ASYNCHRONOUS MACHINE - Google Patents

PROCESS FOR CONTROL OF TORQUE SUPPLIED BY AN ASYNCHRONOUS MACHINE

Info

Publication number
FR2290781A1
FR2290781A1 FR7533776A FR7533776A FR2290781A1 FR 2290781 A1 FR2290781 A1 FR 2290781A1 FR 7533776 A FR7533776 A FR 7533776A FR 7533776 A FR7533776 A FR 7533776A FR 2290781 A1 FR2290781 A1 FR 2290781A1
Authority
FR
France
Prior art keywords
frequency
slip frequency
predetermined
case
field
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
FR7533776A
Other languages
French (fr)
Other versions
FR2290781B3 (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 FR2290781A1 publication Critical patent/FR2290781A1/en
Application granted granted Critical
Publication of FR2290781B3 publication Critical patent/FR2290781B3/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
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
    • H02P25/18—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays
    • H02P25/20—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays for pole-changing
    • 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

Abstract

In the case of torque control of asynchronous machines, the stator rotating-field frequency (f1), which is produced, for example, via a converter, is derived from the mechanical rotation-speed frequency (f) and from the slip frequency (f2) associated with the predetermined torque and is used for controlling the converter or the like. Rapid torque changes can thus not be coped with directly. In order to solve this problem, the supply voltage amplitude (U1) and the stator rotating-field frequency (f1) are formed, in the case of the control circuit arrangement, from the predetermined slip frequency (f2) and the mechanical rotation-speed frequency (f), with the aid of interconnected computing units and of machine characteristic variables which are preset therein, in such a manner that, in the event of rapid changes in the predetermined slip frequency (f2), the amplitude and phase of the rotor field do not change, or change only slightly, and the frequency of the rotor field with respect to the rotor remains equal to the predetermined slip frequency (f2). The ratio of a predetermined slip frequency value to the pull-out slip frequency (fk2) is used, in particular, in this case as the reference variable for the slip frequency, and is modified in accordance with the actual value of the pull-out slip frequency (fk2act). A particular advantage is the capability to use the same circuit arrangement for requirements of different stringency levels with respect to the dynamic operating characteristics.
FR7533776A 1974-11-07 1975-11-05 PROCESS FOR CONTROL OF TORQUE SUPPLIED BY AN ASYNCHRONOUS MACHINE Granted FR2290781A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742452833 DE2452833C2 (en) 1974-11-07 1974-11-07 Arrangement for controlling the torque of a synchronous machine fed by a converter with voltages of adjustable amplitude and frequency

Publications (2)

Publication Number Publication Date
FR2290781A1 true FR2290781A1 (en) 1976-06-04
FR2290781B3 FR2290781B3 (en) 1979-09-21

Family

ID=5930260

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7533776A Granted FR2290781A1 (en) 1974-11-07 1975-11-05 PROCESS FOR CONTROL OF TORQUE SUPPLIED BY AN ASYNCHRONOUS MACHINE

Country Status (5)

Country Link
AT (1) AT351115B (en)
CH (1) CH611088A5 (en)
DE (1) DE2452833C2 (en)
FR (1) FR2290781A1 (en)
NL (1) NL7512941A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0075023A1 (en) * 1981-03-31 1983-03-30 Fanuc Ltd. Method of controlling an ac motor and device thereof
EP0093929A1 (en) * 1982-04-29 1983-11-16 BROWN, BOVERI & CIE Aktiengesellschaft Method of controlling the magnetic flux of an asynchronous machine, and apparatus therefor
BE1006848A3 (en) * 1991-06-17 1995-01-03 Elektronik Regelautomatik Electrical control device for a machine.

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2952325C2 (en) * 1979-12-24 1986-11-27 Brown, Boveri & Cie Ag, 6800 Mannheim Method for controlling the torque and / or the speed of an asynchronous machine fed by a converter with impressed intermediate circuit current
DE3116976A1 (en) * 1981-04-29 1982-11-18 Brown, Boveri & Cie Ag, 6800 Mannheim CIRCUIT ARRANGEMENT FOR FORMING THE PHASE POSITION OF A STATION VOLTAGE VECTOR OR. A STATE CURRENT VECTOR FOR A CONVERTER-fed ASYNCHRONOUS MACHINE
DE3147975A1 (en) * 1981-12-01 1983-07-14 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Method for controlling and regulating an asynchronous machine
DE4003522C2 (en) * 1990-02-06 1994-06-09 Berger Lahr Gmbh Stepper motor in constant current operation and in live operation

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1563228B2 (en) * 1966-07-05 1972-04-06 Licentia Patent Verwaltungs GmbH, 6000 Frankfurt METHOD OF CONTROLLING THE TORQUE DELIVERED BY AN ASYNCHRONOUS MACHINE

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0075023A1 (en) * 1981-03-31 1983-03-30 Fanuc Ltd. Method of controlling an ac motor and device thereof
EP0075023A4 (en) * 1981-03-31 1983-08-09 Fanuc Ltd Method of controlling an ac motor and device thereof.
EP0093929A1 (en) * 1982-04-29 1983-11-16 BROWN, BOVERI & CIE Aktiengesellschaft Method of controlling the magnetic flux of an asynchronous machine, and apparatus therefor
BE1006848A3 (en) * 1991-06-17 1995-01-03 Elektronik Regelautomatik Electrical control device for a machine.

Also Published As

Publication number Publication date
FR2290781B3 (en) 1979-09-21
ATA828275A (en) 1978-12-15
NL7512941A (en) 1976-05-11
AT351115B (en) 1979-07-10
CH611088A5 (en) 1979-05-15
DE2452833C2 (en) 1984-02-02
DE2452833A1 (en) 1976-05-13

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