GB1417386A - Asynchronous motor and control circuit therefor - Google Patents

Asynchronous motor and control circuit therefor

Info

Publication number
GB1417386A
GB1417386A GB3489174A GB3489174A GB1417386A GB 1417386 A GB1417386 A GB 1417386A GB 3489174 A GB3489174 A GB 3489174A GB 3489174 A GB3489174 A GB 3489174A GB 1417386 A GB1417386 A GB 1417386A
Authority
GB
United Kingdom
Prior art keywords
triac
current
phase
asynchronous motor
winding
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
GB3489174A
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of GB1417386A publication Critical patent/GB1417386A/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
    • H02P27/02—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using supply voltage with constant frequency and variable amplitude
    • H02P27/026—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using supply voltage with constant frequency and variable amplitude whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value

Landscapes

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

Abstract

1417386 Controlling asynchronous motors SIEMENS AG 7 Aug 1974 [9 Aug 1973] 34891/74 Heading H2J An asynchronous motor 1 and supply circuit comprises a main winding 2 and an auxiliary winding 3 both connected to a polyphase A.C. source such that the voltage applied to the windings has a predetermined phase difference, preferably 120 degrees, and a controllable switching means, e.g. a triac 5, connected to control the phase of the current in the auxiliary winding 3 together with control means 6 for the switch so that when the predetermined phase difference exists, the phase of the current in the auxiliary winding 3 leads by approximately 90 degrees the phase of the current in the main winding 2. The conduction angle of triac 5 is preferably maintained constant. A further triac 4 may be provided in line with the main winding 2 and its firing angle may be dependent on the difference between a desired motor speed signal from controller 9 and an actual speed signal from tachogenerator 8.
GB3489174A 1973-08-09 1974-08-07 Asynchronous motor and control circuit therefor Expired GB1417386A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2340358A DE2340358B2 (en) 1973-08-09 1973-08-09 Arrangement for regulating the speed of a single-phase asynchronous motor with auxiliary phase

Publications (1)

Publication Number Publication Date
GB1417386A true GB1417386A (en) 1975-12-10

Family

ID=5889323

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3489174A Expired GB1417386A (en) 1973-08-09 1974-08-07 Asynchronous motor and control circuit therefor

Country Status (9)

Country Link
JP (1) JPS5063431A (en)
CH (1) CH570736A5 (en)
DE (1) DE2340358B2 (en)
DK (1) DK421174A (en)
FR (1) FR2240567B3 (en)
GB (1) GB1417386A (en)
IT (1) IT1017957B (en)
NL (1) NL7409156A (en)
SE (1) SE7409874L (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3012558A1 (en) * 1980-03-31 1981-10-08 Siemens AG, 1000 Berlin und 8000 München CIRCUIT ARRANGEMENT FOR SPEED CONTROL OF COLLECTOR MOTORS

Also Published As

Publication number Publication date
DE2340358B2 (en) 1975-12-04
JPS5063431A (en) 1975-05-29
CH570736A5 (en) 1975-12-15
FR2240567B3 (en) 1977-06-03
IT1017957B (en) 1977-08-10
SE7409874L (en) 1975-02-10
FR2240567A1 (en) 1975-03-07
NL7409156A (en) 1975-02-11
DE2340358A1 (en) 1975-03-06
DK421174A (en) 1975-04-07

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Legal Events

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