GB1487868A - Arrangement for controlling alternating currents - Google Patents

Arrangement for controlling alternating currents

Info

Publication number
GB1487868A
GB1487868A GB7390/75A GB739075A GB1487868A GB 1487868 A GB1487868 A GB 1487868A GB 7390/75 A GB7390/75 A GB 7390/75A GB 739075 A GB739075 A GB 739075A GB 1487868 A GB1487868 A GB 1487868A
Authority
GB
United Kingdom
Prior art keywords
thyristor
load
cycle
fired
commutation
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
GB7390/75A
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 GB1487868A publication Critical patent/GB1487868A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
    • H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
    • H02M5/22—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M5/25—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M5/253—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using discharge tubes only
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
    • G05F1/40—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices
    • G05F1/44—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only
    • G05F1/45—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only being controlled rectifiers in series with the load
    • G05F1/455—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only being controlled rectifiers in series with the load with phase control
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/06—Circuits specially adapted for rendering non-conductive gas discharge tubes or equivalent semiconductor devices, e.g. thyratrons, thyristors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Ac-Ac Conversion (AREA)
  • Power Conversion In General (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

1487868 Controlling A.C. LICENTIA PATENT VERWALTUNGS GmbH 21 Feb 1975 [23 Feb 1974] 7390/75 Heading H2H Apparatus for controlling A.C. from a source N to a load V comprises first and second pairs P1, P2; P1<SP>1</SP>, P2<SP>1</SP> of back-to-back thyristors each connected in series with the load V, the first part being connected directly with the source line R and the second being connected with a line R<SP>1</SP> to which is applied a voltage which is derived from the source N, is in phase therewith and is of a lower amplitude, this second pair of thyristors P1<SP>1</SP>, P2<SP>1</SP> each having a diode n 1 , n 2 in series therewith poled in the same sense as the respective thyristor, the junctions between each diode, thyristor pair being connected via respective capacitor, inductor links C1, L1; C2, L2, to the input line R. In operation during, e.g. a positive supply ¢-cycle, thyristor P1 is fired initially to connect the voltage at R to the load. At an appropriate time in the first half of the ¢-cycle, thyristor P1<SP>1</SP> is fired to quench thyristor P1 using the commutating circuit C1, L1, thyristor P2 being fired to limit the load current if necessary during commutation, thyristor P1<SP>1</SP> remaining on after the commutation is complete to connect the lower voltage R<SP>1</SP> to the load V. Reverse commutation may take place later in the ¢-cycle.
GB7390/75A 1974-02-23 1975-02-21 Arrangement for controlling alternating currents Expired GB1487868A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742408806 DE2408806B2 (en) 1974-02-23 1974-02-23 FORCED-COMMUTED THYRISTOR AC POWER CONTROLLER

Publications (1)

Publication Number Publication Date
GB1487868A true GB1487868A (en) 1977-10-05

Family

ID=5908288

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7390/75A Expired GB1487868A (en) 1974-02-23 1975-02-21 Arrangement for controlling alternating currents

Country Status (10)

Country Link
AT (1) AT337837B (en)
BE (1) BE825741A (en)
DE (1) DE2408806B2 (en)
ES (1) ES434870A1 (en)
FR (1) FR2262435A1 (en)
GB (1) GB1487868A (en)
IT (1) IT1031907B (en)
LU (1) LU71843A1 (en)
NL (1) NL7502080A (en)
SE (1) SE398580B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2912765A1 (en) * 1979-03-30 1980-10-09 Siemens Ag DC regulator suitable for vehicle driving motor - uses thyristor trigger circuit for rapid supply voltage polarity changeover

Also Published As

Publication number Publication date
BE825741A (en) 1975-06-16
ES434870A1 (en) 1976-12-16
DE2408806B2 (en) 1976-06-24
DE2408806A1 (en) 1975-08-28
SE7501855L (en) 1975-08-25
FR2262435A1 (en) 1975-09-19
IT1031907B (en) 1979-05-10
NL7502080A (en) 1975-08-26
LU71843A1 (en) 1975-06-24
SE398580B (en) 1977-12-27
ATA131975A (en) 1976-11-15
AT337837B (en) 1977-07-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee