FR2290084A1 - Thyristor controlled inverter with pulsed valve operation - is used to improve a.c. waveform and d.c.stability with several thyristors - Google Patents

Thyristor controlled inverter with pulsed valve operation - is used to improve a.c. waveform and d.c.stability with several thyristors

Info

Publication number
FR2290084A1
FR2290084A1 FR7532959A FR7532959A FR2290084A1 FR 2290084 A1 FR2290084 A1 FR 2290084A1 FR 7532959 A FR7532959 A FR 7532959A FR 7532959 A FR7532959 A FR 7532959A FR 2290084 A1 FR2290084 A1 FR 2290084A1
Authority
FR
France
Prior art keywords
thyristors
waveform
stability
improve
inverter
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.)
Granted
Application number
FR7532959A
Other languages
French (fr)
Other versions
FR2290084B1 (en
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 FR2290084A1 publication Critical patent/FR2290084A1/en
Application granted granted Critical
Publication of FR2290084B1 publication Critical patent/FR2290084B1/fr
Granted 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
    • H02M5/27—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 for conversion of frequency
    • H02M5/271—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 for conversion of frequency from a three phase input voltage

Landscapes

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

Abstract

The inverter is mainly intended for variable frequency supplies, for example motor drives, using a d.c. source which is typically derived from the a.c. mains via a rectifier. The inverter is commutated from the a.c. side, and is designed so that the thyristors can be fired and extinguished several times during one cycle of the a.c. system. The thyristors thus operate in a pulsed regine. By suitably adjusting the pulse intervals the current on the a.c. side is forced into a more sinusoidal waveform thereby helping to eliminate undesirable harmonics and in consequence improve performance. Capacitors are normally added on the a.c. side to further assist better performance.
FR7532959A 1974-10-29 1975-10-28 Thyristor controlled inverter with pulsed valve operation - is used to improve a.c. waveform and d.c.stability with several thyristors Granted FR2290084A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742451960 DE2451960A1 (en) 1974-10-29 1974-10-29 AC FORCULAR COMMUTED CONVERTER

Publications (2)

Publication Number Publication Date
FR2290084A1 true FR2290084A1 (en) 1976-05-28
FR2290084B1 FR2290084B1 (en) 1978-06-23

Family

ID=5929801

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7532959A Granted FR2290084A1 (en) 1974-10-29 1975-10-28 Thyristor controlled inverter with pulsed valve operation - is used to improve a.c. waveform and d.c.stability with several thyristors

Country Status (3)

Country Link
DE (1) DE2451960A1 (en)
FR (1) FR2290084A1 (en)
SE (1) SE7511566L (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2653239C2 (en) * 1976-11-19 1985-04-04 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Arrangement for feeding asynchronous machines
DE2750020A1 (en) * 1977-11-05 1979-05-10 Licentia Gmbh AC-commutated static converter circuit - has diodes and circuit turning thyristor off independently of input voltage
DE2822563A1 (en) * 1978-05-20 1979-11-29 Licentia Gmbh CONTROL AND ERASING DEVICE FOR AN AC COMMUTING PULSE RECTIFIER
DE4036652A1 (en) * 1990-11-16 1992-05-21 Krupp Maschinentechnik Multi-system energy supply for train carriage - uses transformer with two primaries supplied via pulse width modulation DC-AC converter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
REVUE DT ELEKTROTECHNISCHE ZEITSCHRIFT, AUSGABE A, VOL. 95, NO. 4 AVRIL 1974 , PAGES 189 A 197, ARTICLE DE K. HEUMANN ET D. KNUTH: "ENERGIEUMFORMUNG MIT STROMRICHTERN-ELEKTROTECHNISCHE GRUNDLAGEN".) *

Also Published As

Publication number Publication date
FR2290084B1 (en) 1978-06-23
DE2451960A1 (en) 1976-05-06
SE7511566L (en) 1976-04-30

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Legal Events

Date Code Title Description
ST Notification of lapse