FR2469818A1 - CONTINUOUS CURRENT CONVERTER TO AN ADJUSTABLE FREQUENCY CURRENT - Google Patents

CONTINUOUS CURRENT CONVERTER TO AN ADJUSTABLE FREQUENCY CURRENT

Info

Publication number
FR2469818A1
FR2469818A1 FR8023978A FR8023978A FR2469818A1 FR 2469818 A1 FR2469818 A1 FR 2469818A1 FR 8023978 A FR8023978 A FR 8023978A FR 8023978 A FR8023978 A FR 8023978A FR 2469818 A1 FR2469818 A1 FR 2469818A1
Authority
FR
France
Prior art keywords
current
adjustable frequency
thyristors
group
converter
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.)
Withdrawn
Application number
FR8023978A
Other languages
French (fr)
Inventor
Franklin O Wisman
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.)
WOODS T B SONS CO
Original Assignee
WOODS T B SONS CO
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 WOODS T B SONS CO filed Critical WOODS T B SONS CO
Publication of FR2469818A1 publication Critical patent/FR2469818A1/en
Withdrawn legal-status Critical Current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
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/505—Conversion of dc power input into ac power output without possibility of reversal 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
    • H02M7/515—Conversion of dc power input into ac power output without possibility of reversal 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 semiconductor devices only
    • H02M7/5157—Conversion of dc power input into ac power output without possibility of reversal 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 semiconductor devices only wherein the extinguishing of every commutation element will be obtained by means of a commutation inductance, by starting another main commutation element in series with the first

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)
  • Ac-Ac Conversion (AREA)

Abstract

CONVERTISSEUR DE COURANT A FREQUENCE CONTROLABLE. IL COMPORTE UNE SOURCE DE COURANT CONTINU RACCORDEE A DES ENROULEMENTS DE CHARGE A-C, A-C AVANTAGEUSEMENT DIVISEE EN DEUX GROUPES COMPLEMENTAIRES, PAR L'INTERMEDIAIRE DE THYRISTORS RESPECTIFS T-T, T-T QUI, DANS CHAQUE GROUPE, SONT SUCCESSIVEMENT CONDUCTEURS PENDANT 120 DE CHAQUE PERIODE, LES PERIODES DES DEUX GROUPES ETANT DECALEES DE 60, LES THYRISTORS DE CHAQUE GROUPE ETANT COUPLES ENTRE EUX PAR DES CONDENSATEURS C-C, C-C ET CONNECTES AUX ENROULEMENTS RESPECTIFS PAR DES DIODES D'ISOLEMENT D-D, D-D. LES SURTENSIONS ENGENDREES PAR LA COMMUTATION DES CHARGES INDUCTIVES SONT REDUITES AU MOYEN DE DIODES DE RECUPERATION R-R, R-R COUPLEES ENTRE CHAQUE ENROULEMENT ET L'UNE DES BORNES DE LA SOURCE DE COURANT. APPLICATION A L'ALIMENTATION D'UN MOTEUR TRIPHASE.CONTROLABLE FREQUENCY CURRENT CONVERTER. IT CONTAINS A SOURCE OF DIRECT CURRENT CONNECTED TO AC CHARGING WINDINGS, AC ADVANTAGEOUSLY DIVIDED INTO TWO COMPLEMENTARY GROUPS, THROUGH RESPECTIVE TT, TT THYRISTORS WHICH, IN EACH GROUP, ARE SUCCESSIVELY CONDUCTED EACH PERIOD FOR 120 PERIODS OF THE TWO GROUPS BEING OFFSET BY 60, THE THYRISTORS OF EACH GROUP BEING COUPLED TO ONE Another BY DC, CC CAPACITORS AND CONNECTED TO THE RESPECTIVE COILS BY DD, DD ISOLATION DIODES. THE OVERVOLTAGES GENERATED BY THE SWITCHING OF THE INDUCTIVE LOADS ARE REDUCED BY MEANS OF R-R, R-R RECOVERY DIODES COUPLED BETWEEN EACH WINDING AND ONE OF THE TERMINALS OF THE CURRENT SOURCE. APPLICATION TO THE POWER SUPPLY OF A THREE-PHASE MOTOR.

FR8023978A 1979-11-13 1980-11-10 CONTINUOUS CURRENT CONVERTER TO AN ADJUSTABLE FREQUENCY CURRENT Withdrawn FR2469818A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US9355979A 1979-11-13 1979-11-13

Publications (1)

Publication Number Publication Date
FR2469818A1 true FR2469818A1 (en) 1981-05-22

Family

ID=22239606

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8023978A Withdrawn FR2469818A1 (en) 1979-11-13 1980-11-10 CONTINUOUS CURRENT CONVERTER TO AN ADJUSTABLE FREQUENCY CURRENT

Country Status (6)

Country Link
CA (1) CA1158717A (en)
DE (1) DE3042397A1 (en)
FR (1) FR2469818A1 (en)
GB (1) GB2062980B (en)
NL (1) NL8006222A (en)
SE (1) SE8007849L (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1467639A (en) * 1965-02-11 1967-01-27 Borg Warner Static inverter devices
US3859587A (en) * 1974-01-07 1975-01-07 Lorain Prod Corp Thyristor protection circuit for inverters

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1467639A (en) * 1965-02-11 1967-01-27 Borg Warner Static inverter devices
US3859587A (en) * 1974-01-07 1975-01-07 Lorain Prod Corp Thyristor protection circuit for inverters

Also Published As

Publication number Publication date
CA1158717A (en) 1983-12-13
GB2062980B (en) 1983-10-19
SE8007849L (en) 1981-05-14
GB2062980A (en) 1981-05-28
DE3042397A1 (en) 1981-05-21
NL8006222A (en) 1981-06-01

Similar Documents

Publication Publication Date Title
FR2469818A1 (en) CONTINUOUS CURRENT CONVERTER TO AN ADJUSTABLE FREQUENCY CURRENT
GB1429880A (en) System for adjusting and commutating current in machine windings
EP0099156A3 (en) Power supply arrangement for applying direct current to subscriber circuits
SU877706A2 (en) Device for dc supply of load
CA2077080A1 (en) AC Power Source for Welding
FR2317803A1 (en) Controlled single phase bridge for electric vehicles - has power factor optimised using diodes but without using commutating thyristors
RU2082627C1 (en) Transport voltage converter of dc contact system
GB1388992A (en) Electric inverters
RU2088036C1 (en) Unit for forced switching of power thyristors of three-phase autonomous voltage inverter
SU536576A1 (en) Stand alone inverter
SU483728A1 (en) Battery Charger
FR2350726A1 (en) SWITCHING METHOD FOR THE POWER SUPPLY OF A SET OF TRACTION MOTORS FOR TWO-CURRENT MACHINERY (DIRECT CURRENT AND SINGLE-PHASE CURRENT)
SU550746A1 (en) Stand alone inverter
SU1026270A1 (en) Device for controlling rotation speed of electric motor
RU99113918A (en) GROUP POWER SUPPLY SYSTEM FOR ASYNCHRONOUS TRACTION ENGINES
RU1772880C (en) Self-contained inverter
SU65312A1 (en) Multiphase mechanical rectifier
SU387482A1 (en) DEVICE FOR ACCUMULATOR BATTERY CHARGING ASYMMETRIC CURRENT
SU1561184A1 (en) Ac electric drive
SU693516A1 (en) Multi-phase pulsed dc voltage converter
SU729782A1 (en) Multi-phase voltage-to- controllable voltage converter
RU1786629C (en) Direct current electric drive
SU782101A1 (en) Single-phase inverter
SU381566A1 (en) DEVICE FOR THE EXCITATION OF GATEL ELECTRIC ELECTRIC HEAT
SU543111A1 (en) Independent three-phase inverter

Legal Events

Date Code Title Description
ST Notification of lapse