GB2001486A - Improvements in rectifiers - Google Patents
Improvements in rectifiersInfo
- Publication number
- GB2001486A GB2001486A GB7826583A GB7826583A GB2001486A GB 2001486 A GB2001486 A GB 2001486A GB 7826583 A GB7826583 A GB 7826583A GB 7826583 A GB7826583 A GB 7826583A GB 2001486 A GB2001486 A GB 2001486A
- Authority
- GB
- United Kingdom
- Prior art keywords
- secondaries
- transformer
- compensating
- phases
- phase
- 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
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
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
- H02M7/08—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode arranged for operation in parallel
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
Abstract
A rectifier unit for 3-phase a.c. to d.c. conversion is of the type having a transformer (10) with a star-connected secondary (14) and a delta-connected secondary (16) the outputs of which are respectively rectified by rectifier bridges (18, 20) and combined to give 12- pulse operation. To reduce the danger of current imbalance between the two secondaries, a compensating transformer unit (30) is interposed between the secondaries (14, 16) and the rectifiers (18, 20) which modifies the signals from the secondaries such that any difference in the current drawn from one secondary compared with the other tends to equalise the current drawn from the secondaries. The compensating transformer unit can take the form of 3 individual transformer units but is preferably a single transformer with 3 limbs, each of which carries a main winding (32) connected to one secondary and two opposed subsidiary windings (34, 36) which receive the phases from the other secondary which are closest to and on either side of the phase of the associated main winding. The compensating arrangement may be generalised for systems with more than 3 phases. <IMAGE>
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB7826583A GB2001486B (en) | 1977-07-25 | 1978-06-09 | Rectifiers |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3116177 | 1977-07-25 | ||
GB7826583A GB2001486B (en) | 1977-07-25 | 1978-06-09 | Rectifiers |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2001486A true GB2001486A (en) | 1979-01-31 |
GB2001486B GB2001486B (en) | 1982-02-03 |
Family
ID=26260769
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7826583A Expired GB2001486B (en) | 1977-07-25 | 1978-06-09 | Rectifiers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2001486B (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2505575A1 (en) * | 1981-05-11 | 1982-11-12 | Westinghouse Electric Corp | ALTERNATIVE / CONTINUOUS OR CONTINUOUS / ALTERNATIVE CONVERTER SYSTEM WITH HARMONIC REDUCTION OF ALTERNATIVE LINES |
EP0472928A1 (en) * | 1990-08-30 | 1992-03-04 | Siemens-Albis Aktiengesellschaft | Circuit arrangement to reduce harmonic currents |
US5444355A (en) * | 1991-09-26 | 1995-08-22 | Mitsubishi Denki Kabushiki Kaisha | Charging generator for a vehicle |
WO2002058226A2 (en) * | 2001-01-16 | 2002-07-25 | Raytheon Company | Multi-phase transformer system |
RU2687047C1 (en) * | 2018-06-25 | 2019-05-07 | Федеральное государственное автономное образовательное учреждение высшего образования "Южно-Уральский государственный университет (национальный исследовательский университет)" ФГАОУ ВО "ЮУрГУ (НИУ)" | Compensated ac/dc converter |
-
1978
- 1978-06-09 GB GB7826583A patent/GB2001486B/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2505575A1 (en) * | 1981-05-11 | 1982-11-12 | Westinghouse Electric Corp | ALTERNATIVE / CONTINUOUS OR CONTINUOUS / ALTERNATIVE CONVERTER SYSTEM WITH HARMONIC REDUCTION OF ALTERNATIVE LINES |
EP0472928A1 (en) * | 1990-08-30 | 1992-03-04 | Siemens-Albis Aktiengesellschaft | Circuit arrangement to reduce harmonic currents |
US5444355A (en) * | 1991-09-26 | 1995-08-22 | Mitsubishi Denki Kabushiki Kaisha | Charging generator for a vehicle |
EP0534153B1 (en) * | 1991-09-26 | 1996-07-31 | Mitsubishi Denki Kabushiki Kaisha | Charging generator for vehicle |
WO2002058226A2 (en) * | 2001-01-16 | 2002-07-25 | Raytheon Company | Multi-phase transformer system |
WO2002058226A3 (en) * | 2001-01-16 | 2003-10-30 | Raytheon Co | Multi-phase transformer system |
RU2687047C1 (en) * | 2018-06-25 | 2019-05-07 | Федеральное государственное автономное образовательное учреждение высшего образования "Южно-Уральский государственный университет (национальный исследовательский университет)" ФГАОУ ВО "ЮУрГУ (НИУ)" | Compensated ac/dc converter |
Also Published As
Publication number | Publication date |
---|---|
GB2001486B (en) | 1982-02-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19920609 |