GB1193979A - Method of Regulating a Squirrel-Cage Induction Machine - Google Patents

Method of Regulating a Squirrel-Cage Induction Machine

Info

Publication number
GB1193979A
GB1193979A GB4965967A GB4965967A GB1193979A GB 1193979 A GB1193979 A GB 1193979A GB 4965967 A GB4965967 A GB 4965967A GB 4965967 A GB4965967 A GB 4965967A GB 1193979 A GB1193979 A GB 1193979A
Authority
GB
United Kingdom
Prior art keywords
motor
inverter
voltage
frequency
flux
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.)
Expired
Application number
GB4965967A
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of GB1193979A publication Critical patent/GB1193979A/en
Expired 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
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/047—V/F converter, wherein the voltage is controlled proportionally with the frequency

Landscapes

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

Abstract

1,193,979. Control of A.C. motors. LICENTIA PATENT - VERWALTUNGS G.m.b.H. 1 Nov., 1967 [2 Nov., 1966], No. 49659/67. Heading H2J. [Also in Division G3] A squirrel cage induction motor 2 is supplied from a pulse inverter 1 having a control unit 3 for determining the frequency of commutation of the inverter, the motor frequency, and the motor voltage. A main control signal is applied to an integrator 4 connected to a voltage-frequency converter 5 for pre-setting the motor frequency. The outputs of a generator 8 and the integrator 4 are compared and the error signal is applied to a trigger 9 providing feedback to the generator so that it oscillates. Thus, when the main control signal is increased, for example, the commutation and motor frequencies are increased, together with the motor voltage. The flux of the motor is detected by choke coils connected to the motor supply-lines, the reactive currents representing the magnetization current of the motor and hence its flux. The reactive currents are rectified and applied to a Hall converter whose output is amplified by a proportional-integral amplifier shunted by an R-C network, Fig. 2 (not shown). The output of this amplifier modifies the operation of the inverter so that the output voltage is increased when the flux of the motor is insufficient, for example. The output current of the inverter is detected by current transformers 16a, 16b, 16c, associated with rectifier 17 and trigger 18. The triggers 9, 18, are connected to AND-gate 19 for voltage control of the inverter which is switched-off when the current becomes excessive.
GB4965967A 1966-11-02 1967-11-01 Method of Regulating a Squirrel-Cage Induction Machine Expired GB1193979A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL0054964 1966-11-02

Publications (1)

Publication Number Publication Date
GB1193979A true GB1193979A (en) 1970-06-03

Family

ID=7276579

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4965967A Expired GB1193979A (en) 1966-11-02 1967-11-01 Method of Regulating a Squirrel-Cage Induction Machine

Country Status (3)

Country Link
DE (1) DE1563267A1 (en)
GB (1) GB1193979A (en)
SE (1) SE338610B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4255695A (en) * 1978-09-25 1981-03-10 General Electric Company Method and apparatus for control of inverter synchronous machine drive system
EP0083945A2 (en) * 1982-01-11 1983-07-20 Hitachi, Ltd. Method and apparatus of controlling induction motors
GB2159353A (en) * 1984-05-21 1985-11-27 Mitsubishi Electric Corp Inverter control apparatus
CN113783483A (en) * 2021-09-29 2021-12-10 苏州达思灵新能源科技有限公司 Control system and control method for electro-magnetic doubly salient direct-current generator

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2627537C2 (en) * 1976-06-19 1982-12-16 Brown, Boveri & Cie Ag, 6800 Mannheim Circuit arrangement for regulating the motor current in a three-phase three-phase motor fed by a converter
JPS5928152B2 (en) * 1978-11-04 1984-07-11 ファナック株式会社 Protection device for motor drive inverter circuit
JPS5928151B2 (en) * 1978-11-04 1984-07-11 ファナック株式会社 Protection method for motor drive inverter circuit
GB2114780B (en) * 1982-02-03 1985-12-04 Gen Electric Current control pulse width modulated inverter machine drive system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4255695A (en) * 1978-09-25 1981-03-10 General Electric Company Method and apparatus for control of inverter synchronous machine drive system
EP0083945A2 (en) * 1982-01-11 1983-07-20 Hitachi, Ltd. Method and apparatus of controlling induction motors
EP0083945A3 (en) * 1982-01-11 1983-11-23 Hitachi, Ltd. Method and apparatus of controlling induction motors
GB2159353A (en) * 1984-05-21 1985-11-27 Mitsubishi Electric Corp Inverter control apparatus
US4663578A (en) * 1984-05-21 1987-05-05 Mitsubishi Denki Kabushiki Kaisha Inverter control apparatus
CN113783483A (en) * 2021-09-29 2021-12-10 苏州达思灵新能源科技有限公司 Control system and control method for electro-magnetic doubly salient direct-current generator
CN113783483B (en) * 2021-09-29 2022-06-21 苏州达思灵新能源科技有限公司 Control system and control method for electro-magnetic doubly salient direct-current generator

Also Published As

Publication number Publication date
SE338610B (en) 1971-09-13
DE1563267A1 (en) 1970-04-09

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees