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FR2426356A1 - Induction motor starting and speed controller - operates with thyristor switching in rotor circuit and rotor voltage is used as feedback signal - Google Patents

Induction motor starting and speed controller - operates with thyristor switching in rotor circuit and rotor voltage is used as feedback signal

Info

Publication number
FR2426356A1
FR2426356A1 FR7814979A FR7814979A FR2426356A1 FR 2426356 A1 FR2426356 A1 FR 2426356A1 FR 7814979 A FR7814979 A FR 7814979A FR 7814979 A FR7814979 A FR 7814979A FR 2426356 A1 FR2426356 A1 FR 2426356A1
Authority
FR
France
Prior art keywords
rotor
feedback signal
operates
induction motor
speed controller
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
FR7814979A
Other languages
French (fr)
Other versions
FR2426356B1 (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.)
KUZNETSOV JURY
Original Assignee
KUZNETSOV JURY
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 KUZNETSOV JURY filed Critical KUZNETSOV JURY
Priority to FR7814979A priority Critical patent/FR2426356A1/en
Publication of FR2426356A1 publication Critical patent/FR2426356A1/en
Application granted granted Critical
Publication of FR2426356B1 publication Critical patent/FR2426356B1/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
    • H02P25/24—Variable impedance in stator or rotor circuit
    • H02P25/26—Variable impedance in stator or rotor circuit with arrangements for controlling secondary impedance

Landscapes

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

Abstract

The object of the control unit is to allow a soft start of the motor and to control the speed, or torque, delivered by the motor when running. The control circuit uses the rotor voltage as a feedback signal which is evaluated in a comparator (7) against a reference (6). The rotor voltage is also converted into an amplitude limited sawtooth wave in a generator (4), which is also supplied with a speed signal. The comparator (7) output is used to control the triggering pulse generator (8) which governs the conduction of the thyristors (9) in the rotor load circuit.
FR7814979A 1978-05-19 1978-05-19 Induction motor starting and speed controller - operates with thyristor switching in rotor circuit and rotor voltage is used as feedback signal Granted FR2426356A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7814979A FR2426356A1 (en) 1978-05-19 1978-05-19 Induction motor starting and speed controller - operates with thyristor switching in rotor circuit and rotor voltage is used as feedback signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7814979A FR2426356A1 (en) 1978-05-19 1978-05-19 Induction motor starting and speed controller - operates with thyristor switching in rotor circuit and rotor voltage is used as feedback signal

Publications (2)

Publication Number Publication Date
FR2426356A1 true FR2426356A1 (en) 1979-12-14
FR2426356B1 FR2426356B1 (en) 1981-04-30

Family

ID=9208483

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7814979A Granted FR2426356A1 (en) 1978-05-19 1978-05-19 Induction motor starting and speed controller - operates with thyristor switching in rotor circuit and rotor voltage is used as feedback signal

Country Status (1)

Country Link
FR (1) FR2426356A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2480044A1 (en) * 1980-04-02 1981-10-09 Proizv Ob Dinamo METHOD FOR ADJUSTING THE ROTATION FREQUENCY OF AT LEAST ONE ASYNCHRONOUS MOTOR AND REGULATOR IMPLEMENTING SAID METHOD

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2109216A5 (en) * 1970-10-07 1972-05-26 Telemecanique Electrique

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2109216A5 (en) * 1970-10-07 1972-05-26 Telemecanique Electrique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2480044A1 (en) * 1980-04-02 1981-10-09 Proizv Ob Dinamo METHOD FOR ADJUSTING THE ROTATION FREQUENCY OF AT LEAST ONE ASYNCHRONOUS MOTOR AND REGULATOR IMPLEMENTING SAID METHOD

Also Published As

Publication number Publication date
FR2426356B1 (en) 1981-04-30

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Legal Events

Date Code Title Description
ST Notification of lapse