GB1219552A - Control system for an electric motor - Google Patents

Control system for an electric motor

Info

Publication number
GB1219552A
GB1219552A GB48569A GB48569A GB1219552A GB 1219552 A GB1219552 A GB 1219552A GB 48569 A GB48569 A GB 48569A GB 48569 A GB48569 A GB 48569A GB 1219552 A GB1219552 A GB 1219552A
Authority
GB
United Kingdom
Prior art keywords
control system
smoothed
jan
inverter
electric motor
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
GB48569A
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.)
Danfoss AS
Original Assignee
Danfoss AS
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 Danfoss AS filed Critical Danfoss AS
Publication of GB1219552A publication Critical patent/GB1219552A/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
    • H02P27/06—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 using dc to ac converters or inverters
    • 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
    • H02P2201/00—Indexing scheme relating to controlling arrangements characterised by the converter used
    • H02P2201/03—AC-DC converter stage controlled to provide a defined DC link voltage
    • 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 Ac Motors In General (AREA)
  • Control Of Multiple Motors (AREA)
  • Inverter Devices (AREA)

Abstract

1,219,552. Control of A.C. motors. DANFOSS A.S. 3 Jan., 1969 [26 Jan., 1968], No. 485/69. Heading H2J. In a system in which a motor 5 is energized via an inverter 4 from a D.C. supply which is regulated by a switching device 2 and smoothed by a filter L1, C2, an additional capacitor C3 and a resistor R1 are connected across C2 to make the motor run more smoothly, particularly at low speeds. The inverter and the switching device comprise main and commutating thyristors and the D.C. is derived from an A.C. supply by a rectifier bridge 1, the output of which is smoothed by C1 or a further LC circuit. Diode D1 is part of the D.C. smoothing circuit and an additional inductance may be connected between R1 and 4. The capacitance of C3 is approximately three times that of C1 and typical values are given.
GB48569A 1968-01-26 1969-01-03 Control system for an electric motor Expired GB1219552A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED0055200 1968-01-26

Publications (1)

Publication Number Publication Date
GB1219552A true GB1219552A (en) 1971-01-20

Family

ID=7056324

Family Applications (1)

Application Number Title Priority Date Filing Date
GB48569A Expired GB1219552A (en) 1968-01-26 1969-01-03 Control system for an electric motor

Country Status (8)

Country Link
JP (1) JPS4920888B1 (en)
CA (1) CA934816A (en)
CH (1) CH487538A (en)
DE (1) DE1613771B1 (en)
DK (1) DK140774C (en)
FR (1) FR1599627A (en)
GB (1) GB1219552A (en)
SE (1) SE361798B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0114276A1 (en) * 1982-12-23 1984-08-01 Borg-Warner Corporation Starting system for chopper controlled motor-commutated thyristor inverter

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61178604U (en) * 1986-03-14 1986-11-07
DE102009053061A1 (en) * 2009-11-16 2011-05-19 Wilo Se Electrical arrangement for power electronics in electric motor, has impedance switched in series with electrolytic capacitor, where impedance lies in region between condenser and fully equivalent series resistance of capacitor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE741914C (en) * 1941-03-22 1944-11-18 Siemens Ag Device for damping natural vibrations of a filter circuit on the direct current side of a rectifier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0114276A1 (en) * 1982-12-23 1984-08-01 Borg-Warner Corporation Starting system for chopper controlled motor-commutated thyristor inverter

Also Published As

Publication number Publication date
JPS4920888B1 (en) 1974-05-28
SE361798B (en) 1973-11-12
CH487538A (en) 1970-03-15
DE1613771B1 (en) 1970-11-19
CA934816A (en) 1973-10-02
FR1599627A (en) 1970-07-15
DK140774B (en) 1979-11-12
DK140774C (en) 1980-04-14

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