GB623689A - An improved electric motor control system - Google Patents
An improved electric motor control systemInfo
- Publication number
- GB623689A GB623689A GB1292547A GB1292547A GB623689A GB 623689 A GB623689 A GB 623689A GB 1292547 A GB1292547 A GB 1292547A GB 1292547 A GB1292547 A GB 1292547A GB 623689 A GB623689 A GB 623689A
- Authority
- GB
- United Kingdom
- Prior art keywords
- motor
- exciter
- field
- current
- control system
- 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
- 238000004804 winding Methods 0.000 abstract 2
- 230000004075 alteration Effects 0.000 abstract 1
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
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
623,689. Control of motors. WHEELER, H. D., MOSSAY, P. A. H., and DEAN, J. May 13, 1947, No. 12925. [Class 38(iii)] An electric motor control system comprises a differentially wound exciter E1 connected to the motor M to be controlled so that alteration of the balance of currents in the exciter field windings by any variation of the motor current causes the exciter armature to buck or boost the current in the motor series winding s. A field F1 of the exciter carries the armature current of the motor M and another field F2 is separately and variably excited so that with normal motor current the exciter balances the normal volt drop in the series field. The torque of the motor is thereby maintained inversely proportional to its speed. One application of the invention is to machines wherein material is wound on a reel with a constant tension in the material as the diameter of the reel increases. The motors MS may be those driving other sections of such a machine at pre-set constant speed or speeds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1292547A GB623689A (en) | 1947-05-13 | 1947-05-13 | An improved electric motor control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1292547A GB623689A (en) | 1947-05-13 | 1947-05-13 | An improved electric motor control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB623689A true GB623689A (en) | 1949-05-20 |
Family
ID=10013647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1292547A Expired GB623689A (en) | 1947-05-13 | 1947-05-13 | An improved electric motor control system |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB623689A (en) |
-
1947
- 1947-05-13 GB GB1292547A patent/GB623689A/en not_active Expired
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