GB904409A - Improvements relating to electric motor control systems - Google Patents
Improvements relating to electric motor control systemsInfo
- Publication number
- GB904409A GB904409A GB439660A GB439660A GB904409A GB 904409 A GB904409 A GB 904409A GB 439660 A GB439660 A GB 439660A GB 439660 A GB439660 A GB 439660A GB 904409 A GB904409 A GB 904409A
- Authority
- GB
- United Kingdom
- Prior art keywords
- voltage
- field
- generator
- motor
- exciter
- 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
- 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
- H02P7/18—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 by master control with auxiliary power
- H02P7/34—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 by master control with auxiliary power using Ward-Leonard arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
904,409. Control of D.C. motors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 24, 1961 [Feb. 8, 1960], No. 4396/60. Class 38 (3). [Also in Group XXXV] The control circuit for a D.C. motor 1 described in Specification 693,899 is modified in that the control voltage for winding 10 now includes an element derived from a transformer 2 proportional to the rate of change of the voltage on field 4 of generator 3, and potentiometer 17 is now connected across the exciter field 6 instead of the generator field 4. Hence, the control voltage, which reduces the forcing of generator 3 and therefore the acceleration of motor 1, now comprises the sum of voltages proportional to the load current of the motor 1, the voltage on exciter field 6 and the rate of change of voltage on generator field 4, which sum is matched against a reference voltage from a potentiometer 12. It is stated that greater stability of the system results. The amplidyne 7 may be replaced by a magnetic or electronic amplifier and this device may be connected directly with generator field 4, the exciter 5, 6 being omitted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB439660A GB904409A (en) | 1960-02-08 | 1960-02-08 | Improvements relating to electric motor control systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB439660A GB904409A (en) | 1960-02-08 | 1960-02-08 | Improvements relating to electric motor control systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB904409A true GB904409A (en) | 1962-08-29 |
Family
ID=9776385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB439660A Expired GB904409A (en) | 1960-02-08 | 1960-02-08 | Improvements relating to electric motor control systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB904409A (en) |
-
1960
- 1960-02-08 GB GB439660A patent/GB904409A/en not_active Expired
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