GB1277079A - Improvements relating to the control of asynchronous machines - Google Patents

Improvements relating to the control of asynchronous machines

Info

Publication number
GB1277079A
GB1277079A GB5293969A GB5293969A GB1277079A GB 1277079 A GB1277079 A GB 1277079A GB 5293969 A GB5293969 A GB 5293969A GB 5293969 A GB5293969 A GB 5293969A GB 1277079 A GB1277079 A GB 1277079A
Authority
GB
United Kingdom
Prior art keywords
control
pole
windings
oct
improvements relating
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
GB5293969A
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
Brown Boveri und Cie 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, Brown Boveri und Cie AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Publication of GB1277079A publication Critical patent/GB1277079A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K17/00—Asynchronous induction motors; Asynchronous induction generators
    • H02K17/02—Asynchronous induction motors
    • H02K17/12—Asynchronous induction motors for multi-phase current
    • H02K17/14—Asynchronous induction motors for multi-phase current having windings arranged for permitting pole-changing

Landscapes

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

Abstract

1277079 Control of AC motors BROWN BOVERI & CO Ltd 29 Oct 1969 [31 Oct 1968] 52939/69 Heading H2J The stator of an asynchronous machine is provided with two separate three-phase windings having supply-terminals U1, V1, W1, and U2, V2, W2, the star-points being formed by the leads joining terminals X1, Y1, Z1, and X2, Y2, Z2. The windings are supplied from respective frequency converters, the effective pole-number of the machine being changed by varying the supply voltages in frequency and phase positon within the individual windings. Figs. 1 and 2 indicate the supply voltage values for four-pole and two-pole operation respectively. The frequency converters may be of the thyristor type.
GB5293969A 1968-10-31 1969-10-29 Improvements relating to the control of asynchronous machines Expired GB1277079A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681806276 DE1806276B2 (en) 1968-10-31 1968-10-31 METHOD OF CONTROLLING THE SPEED OF AN ASYNCHRONOUS MOTOR

Publications (1)

Publication Number Publication Date
GB1277079A true GB1277079A (en) 1972-06-07

Family

ID=5712029

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5293969A Expired GB1277079A (en) 1968-10-31 1969-10-29 Improvements relating to the control of asynchronous machines

Country Status (3)

Country Link
DE (1) DE1806276B2 (en)
GB (1) GB1277079A (en)
SE (1) SE358778B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2406018A1 (en) * 1977-10-12 1979-05-11 Sole Spa CONTROL DEVICE FOR THE DRUM OF AN AUTOMATIC WASHING MACHINE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2406018A1 (en) * 1977-10-12 1979-05-11 Sole Spa CONTROL DEVICE FOR THE DRUM OF AN AUTOMATIC WASHING MACHINE

Also Published As

Publication number Publication date
DE1806276B2 (en) 1977-04-28
SE358778B (en) 1973-08-06
DE1806276A1 (en) 1970-05-14

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee