NO930808D0 - PROCEDURE AND DEVICE FOR STARTING UP ASYNCHRONIC MACHINE - Google Patents
PROCEDURE AND DEVICE FOR STARTING UP ASYNCHRONIC MACHINEInfo
- Publication number
- NO930808D0 NO930808D0 NO930808A NO930808A NO930808D0 NO 930808 D0 NO930808 D0 NO 930808D0 NO 930808 A NO930808 A NO 930808A NO 930808 A NO930808 A NO 930808A NO 930808 D0 NO930808 D0 NO 930808D0
- Authority
- NO
- Norway
- Prior art keywords
- machine
- voltage
- connected via
- secondary winding
- stator
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/34—Arrangements for transfer of electric power between networks of substantially different frequency
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/08—Control of generator circuit during starting or stopping of driving means, e.g. for initiating excitation
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
- Control Of Eletrric Generators (AREA)
- Paper (AREA)
- Valve Device For Special Equipments (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Motor And Converter Starters (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
In order to accelerate an asynchronous machine (5), its stator is connected via a switch (S2) to a secondary winding (W3) of a converter transformer (T1), while the rotor is connected via a cycloconverter (3, 4), in a V-circuit, to secondary windings (W2, W3) of the converter transformer (T1). The secondary winding (W3) has a reduced AC voltage (U12) on the converter side, in the region of 5% - 10% of the AC voltage (U1) of the AC power supply (1). The asynchronous machine (5) is coupled on the rotor side to a single-phase synchronous machine (6). Such rotating frequency converters are used for transmitting electrical power in the range from 8MW - 90MW from a national grid (1) at 50 Hz or 60 Hz to a single-phase railway network (2) at 16<2>/3 Hz or 25 Hz, and vice versa. The single-phase synchronous machine (6) is not energised during acceleration, so that undesirable harmonic torques at double the stator frequency do not occur and a longer life of mechanical components, such as pole connections, fans etc., is achieved. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4207327A DE4207327A1 (en) | 1992-03-07 | 1992-03-07 | METHOD AND ROTATING DEVICE FOR STARTING UP AN ASYNCHRONOUS MACHINE |
Publications (2)
Publication Number | Publication Date |
---|---|
NO930808D0 true NO930808D0 (en) | 1993-03-05 |
NO930808L NO930808L (en) | 1993-09-08 |
Family
ID=6453524
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO93930808A NO930808L (en) | 1992-03-07 | 1993-03-05 | PROCEDURE AND DEVICE FOR STARTING UP ASYNCHRONIC MACHINE |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0560108B1 (en) |
AT (1) | ATE144087T1 (en) |
DE (2) | DE4207327A1 (en) |
NO (1) | NO930808L (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102694487A (en) * | 2012-06-08 | 2012-09-26 | 宁波高新区宁变电力设备有限公司 | Adjustable self-coupling transformer device and starting method for soft starting of high-power motor |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57119671A (en) * | 1981-01-14 | 1982-07-26 | Toshiba Corp | Cycloconverter device |
US4481455A (en) * | 1983-09-29 | 1984-11-06 | Osamu Sugimoto | Method of starting variable-speed induction motor |
DE3410878A1 (en) * | 1984-03-22 | 1985-10-10 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Method for starting and shutting down a railway converter, using the direct converter which is required for slip supply |
DE3445417A1 (en) * | 1984-12-13 | 1986-06-19 | BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau | METHOD AND ROTATING DEVICE FOR STARTING UP A ROTATING FREQUENCY CONVERTER |
DE3519138A1 (en) * | 1985-05-29 | 1986-12-04 | BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau | METHOD AND ROTATING DEVICE FOR STARTING UP A SLIP RING ASYNCHRONOUS MACHINE |
-
1992
- 1992-03-07 DE DE4207327A patent/DE4207327A1/en not_active Withdrawn
-
1993
- 1993-02-22 AT AT93102755T patent/ATE144087T1/en active
- 1993-02-22 EP EP93102755A patent/EP0560108B1/en not_active Expired - Lifetime
- 1993-02-22 DE DE59304067T patent/DE59304067D1/en not_active Expired - Lifetime
- 1993-03-05 NO NO93930808A patent/NO930808L/en unknown
Also Published As
Publication number | Publication date |
---|---|
ATE144087T1 (en) | 1996-10-15 |
DE59304067D1 (en) | 1996-11-14 |
EP0560108B1 (en) | 1996-10-09 |
DE4207327A1 (en) | 1993-09-09 |
EP0560108A2 (en) | 1993-09-15 |
NO930808L (en) | 1993-09-08 |
EP0560108A3 (en) | 1994-04-06 |
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