GB1287648A - A speed control arrangement for an electrical machine - Google Patents

A speed control arrangement for an electrical machine

Info

Publication number
GB1287648A
GB1287648A GB47770/70A GB4777070A GB1287648A GB 1287648 A GB1287648 A GB 1287648A GB 47770/70 A GB47770/70 A GB 47770/70A GB 4777070 A GB4777070 A GB 4777070A GB 1287648 A GB1287648 A GB 1287648A
Authority
GB
United Kingdom
Prior art keywords
rectifier
phase
motor
inverter
rotor
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
GB47770/70A
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 GB1287648A publication Critical patent/GB1287648A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K19/00—Synchronous motors or generators
    • H02K19/02—Synchronous motors
    • H02K19/10—Synchronous motors for multi-phase current
    • H02K19/103—Motors having windings on the stator and a variable reluctance soft-iron rotor without windings
    • 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
    • H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
    • H02P25/022—Synchronous motors
    • H02P25/024—Synchronous motors controlled by supply frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Ac Motors In General (AREA)
  • Motor And Converter Starters (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Control Of Electric Motors In General (AREA)
  • Synchronous Machinery (AREA)

Abstract

1287648 Control of A.C. motors SIEMENS AG 7 Oct 1970 [7 Oct 1969] 47770/70 Heading H2J A three-phase synchronous motor of the reluctance type comprises an unwound salientpole rotor 2, the stator 3 having exciting coils 6, 7 and a three-phase winding 9 of the singlelayer type and arranged in open slots 8. Each turn of the winding 9 has a peripheral extent substantially equal to that of the poles of the rotor. Both the stator and rotor are laminated. The motor is normally operated from a threephase source 10 through a rectifier 11 and inverter 12, the coils 6, 7, being arranged in the intermediate circuit. The motor is self-commutating and its speed is controlled by varying the firing times of the rectifiers in the group 11, For starting the motor, a change-over switch 13 is moved to its left-hand position so that the rectifier and inverter are re-grouped to form two two anti-parallel three-phase bridges constituting an A.C. line commutated converter. This converter is supplied from a single-phase transformer 14, the coils 6, 7, being each connected in series with one of the bridges. The change-over of switch 13 to its first position may be effected automatically in accordance with time or speed. In another arrangement, the rectifier and inverter each comprise three star-connected thyristors, an excitation winding being connected to the star-point of the three-phase winding and to a neutral of the mains supply, Fig. 3 (not shown). In a further embodiment, the rectifier group comprises both controlled and uncontrolled elements, Fig. 4 (not shown).
GB47770/70A 1969-10-07 1970-10-07 A speed control arrangement for an electrical machine Expired GB1287648A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691951186 DE1951186A1 (en) 1969-10-07 1969-10-07 Speed-adjustable converter motor of synchronous design

Publications (1)

Publication Number Publication Date
GB1287648A true GB1287648A (en) 1972-09-06

Family

ID=5747876

Family Applications (1)

Application Number Title Priority Date Filing Date
GB47770/70A Expired GB1287648A (en) 1969-10-07 1970-10-07 A speed control arrangement for an electrical machine

Country Status (6)

Country Link
JP (1) JPS4835727B1 (en)
AT (1) AT301702B (en)
CH (1) CH516890A (en)
DE (1) DE1951186A1 (en)
FR (1) FR2065087A5 (en)
GB (1) GB1287648A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8193660B2 (en) 2009-07-27 2012-06-05 Rocky Research HVAC/R system having power back-up system with a DC-DC converter
US8278778B2 (en) 2009-07-27 2012-10-02 Rocky Research HVAC/R battery back-up power supply system having a variable frequency drive (VFD) power supply
US8299653B2 (en) 2009-07-27 2012-10-30 Rocky Research HVAC/R system with variable frequency drive power supply for three-phase and single-phase motors
US8299646B2 (en) 2009-07-27 2012-10-30 Rocky Research HVAC/R system with variable frequency drive (VFD) power supply for multiple motors
US8302416B2 (en) 2009-03-02 2012-11-06 Rocky Research Liquid refrigerant composite cooling system
US9071078B2 (en) 2011-01-24 2015-06-30 Rocky Research Enclosure housing electronic components having hybrid HVAC/R system with power back-up
US9160258B2 (en) 2009-07-27 2015-10-13 Rocky Research Cooling system with increased efficiency
US9228750B2 (en) 2011-01-24 2016-01-05 Rocky Research HVAC/R system with multiple power sources and time-based selection logic

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5062927U (en) * 1973-10-04 1975-06-09
JPS5452162U (en) * 1977-09-19 1979-04-11
JPS5485873U (en) * 1977-11-30 1979-06-18
JPS54136860U (en) * 1978-03-14 1979-09-22
JPS6447888U (en) * 1987-09-21 1989-03-24
DE19919684A1 (en) * 1999-04-30 2000-11-16 Bosch Gmbh Robert Drive with brushless electric motor and brushless electric motor
EP3531547B1 (en) 2018-02-21 2022-09-14 GE Energy Power Conversion Technology Limited Operating circuit for coupling of a synchronous machine with a voltage network and method for the operation of same

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8302416B2 (en) 2009-03-02 2012-11-06 Rocky Research Liquid refrigerant composite cooling system
US8193660B2 (en) 2009-07-27 2012-06-05 Rocky Research HVAC/R system having power back-up system with a DC-DC converter
US8278778B2 (en) 2009-07-27 2012-10-02 Rocky Research HVAC/R battery back-up power supply system having a variable frequency drive (VFD) power supply
US8299653B2 (en) 2009-07-27 2012-10-30 Rocky Research HVAC/R system with variable frequency drive power supply for three-phase and single-phase motors
US8299646B2 (en) 2009-07-27 2012-10-30 Rocky Research HVAC/R system with variable frequency drive (VFD) power supply for multiple motors
US9160258B2 (en) 2009-07-27 2015-10-13 Rocky Research Cooling system with increased efficiency
US9714786B2 (en) 2009-07-27 2017-07-25 Rocky Research Cooling system with increased efficiency
US9071078B2 (en) 2011-01-24 2015-06-30 Rocky Research Enclosure housing electronic components having hybrid HVAC/R system with power back-up
US9228750B2 (en) 2011-01-24 2016-01-05 Rocky Research HVAC/R system with multiple power sources and time-based selection logic

Also Published As

Publication number Publication date
CH516890A (en) 1971-12-15
FR2065087A5 (en) 1971-07-23
JPS4835727B1 (en) 1973-10-30
AT301702B (en) 1972-09-11
DE1951186A1 (en) 1971-04-22

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees