GB1408904A - Three-phase current inverter - Google Patents

Three-phase current inverter

Info

Publication number
GB1408904A
GB1408904A GB3884672A GB3884672A GB1408904A GB 1408904 A GB1408904 A GB 1408904A GB 3884672 A GB3884672 A GB 3884672A GB 3884672 A GB3884672 A GB 3884672A GB 1408904 A GB1408904 A GB 1408904A
Authority
GB
United Kingdom
Prior art keywords
inverter
phase
voltage
inverters
thyristors
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
GB3884672A
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 GB1408904A publication Critical patent/GB1408904A/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
    • 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
    • H02M7/525—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 with automatic control of output waveform or frequency

Abstract

1408904 Inverting LICENTIA PATENT VERWALTUNGS-GmbH 21 Aug 1972 [19 Aug 1971] 38846/72 Heading H2F In an inverter of the type in which three single-phase inverters 11, 21, 31 each feed a primary of a three-phase transformer Tr, the secondary windings of the transformer Tr are connected in star and a voltage taken between each secondary and the neutral Mp to feed respective voltage regulators 18, 28, 38 for the single-phase inverters 11, 21, 31. As described, a frequency source 13 supplies the thyristors of the inverter 11 directly and supplies the other inverters 21, 31 via 120 degrees phase shifters 23, 33. Each inverter 11, 21, 31 may be formed of two groups of thyristors (as described in Specification 1,302,304), the output voltage being a function of the phase displacement between the two groups. Alternatively, each inverter may have voltage adjustment by adjustment of the direct current fed to it. The secondary windings 12, 22, 32 are connected in zig-zag or, as in Fig. 1 (not shown), three such windings may be connected in star. Third harmonics are short-circuited by means of tuned circuits 16, 26, 36. The effect of chokes 14, 24, 34 ensures that the output voltages are regulated symmetrically despite unbalanced loads.
GB3884672A 1971-08-19 1972-08-21 Three-phase current inverter Expired GB1408904A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712141530 DE2141530C3 (en) 1971-08-19 1971-08-19 Regulated three-phase current inverter with three single-phase inverters coupled together to form a three-phase current system

Publications (1)

Publication Number Publication Date
GB1408904A true GB1408904A (en) 1975-10-08

Family

ID=5817159

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3884672A Expired GB1408904A (en) 1971-08-19 1972-08-21 Three-phase current inverter

Country Status (5)

Country Link
BE (1) BE787655A (en)
CH (1) CH538217A (en)
DE (1) DE2141530C3 (en)
GB (1) GB1408904A (en)
NL (1) NL7211315A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2311422A (en) * 1996-03-23 1997-09-24 Oxford Magnet Tech Resonant converters
CN109286330A (en) * 2018-11-28 2019-01-29 深圳市优优绿能电气有限公司 A kind of high-power power inverter of high current

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017212224B4 (en) 2016-08-23 2019-10-31 Siemens Healthcare Gmbh High voltage generator for an X-ray machine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3225282A (en) * 1962-12-24 1965-12-21 United Aircraft Corp Three phase inverter system with voltage and phase control

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2311422A (en) * 1996-03-23 1997-09-24 Oxford Magnet Tech Resonant converters
US5880944A (en) * 1996-03-23 1999-03-09 Oxford Magnet Technology Limited Resonant converters
GB2311422B (en) * 1996-03-23 2000-10-18 Oxford Magnet Tech Improvements in or relating to resonant converters
CN109286330A (en) * 2018-11-28 2019-01-29 深圳市优优绿能电气有限公司 A kind of high-power power inverter of high current

Also Published As

Publication number Publication date
CH538217A (en) 1973-06-15
DE2141530B2 (en) 1977-11-10
NL7211315A (en) 1973-02-21
BE787655A (en) 1972-12-18
DE2141530C3 (en) 1982-07-22
DE2141530A1 (en) 1973-03-08

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee