GB833637A - Improvements relating to automatic voltage control systems - Google Patents
Improvements relating to automatic voltage control systemsInfo
- Publication number
- GB833637A GB833637A GB3229455A GB3229455A GB833637A GB 833637 A GB833637 A GB 833637A GB 3229455 A GB3229455 A GB 3229455A GB 3229455 A GB3229455 A GB 3229455A GB 833637 A GB833637 A GB 833637A
- Authority
- GB
- United Kingdom
- Prior art keywords
- voltage
- alternator
- excitation
- amplifier
- output
- 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
Links
Classifications
-
- 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
-
- 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
- H02P2101/00—Special adaptation of control arrangements for generators
- H02P2101/30—Special adaptation of control arrangements for generators for aircraft
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
833,637. Automatic voltage-control systems. ENGLISH ELECTRIC CO. Ltd. Nov. 9, 1956 [Nov. 11, 1955], No. 32294/55. Class 38 (4). In an automatic voltage-control system for a separately-excited engine-driven aircraft alternator, the excitation is increased above normal full-load value if the alternator voltage drops due to overload. The exciter E has a selfexcited field Ef 1 , Ef 2 capable of producing a larger output than the normal full-load requirement of the alternator. The field Ef 1 , Ef 2 is divided into two parts and arranged at opposite sides of a bridge with resistors R1, R2 to voltage opposing the self-excitation is normally applied across one diagonal of the bridge by a magnetic amplifier MA2 so as to reduce the excitation to that required to maintain the alternator output voltage constant at the desired value. The alternator voltage is compared with a reference voltage CV to control a magnetic amplifier MA1 which in turn controls the amplifier MA2. An additional field winding Ef 3 aids the self-excitation and prevents polarity reversal which might otherwise occur if the output of amplifier MA2 were excessive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3229455A GB833637A (en) | 1955-11-11 | 1955-11-11 | Improvements relating to automatic voltage control systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3229455A GB833637A (en) | 1955-11-11 | 1955-11-11 | Improvements relating to automatic voltage control systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB833637A true GB833637A (en) | 1960-04-27 |
Family
ID=10336366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3229455A Expired GB833637A (en) | 1955-11-11 | 1955-11-11 | Improvements relating to automatic voltage control systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB833637A (en) |
-
1955
- 1955-11-11 GB GB3229455A patent/GB833637A/en not_active Expired
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