GB1116375A - Speed control system for induction motors - Google Patents
Speed control system for induction motorsInfo
- Publication number
- GB1116375A GB1116375A GB2716565A GB2716565A GB1116375A GB 1116375 A GB1116375 A GB 1116375A GB 2716565 A GB2716565 A GB 2716565A GB 2716565 A GB2716565 A GB 2716565A GB 1116375 A GB1116375 A GB 1116375A
- Authority
- GB
- United Kingdom
- Prior art keywords
- motor
- rectifiers
- phase
- speed
- saw
- 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
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/02—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using supply voltage with constant frequency and variable amplitude
- H02P27/026—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using supply voltage with constant frequency and variable amplitude whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value
-
- 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
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/02—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using supply voltage with constant frequency and variable amplitude
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
1,116,375. Control of A.C. motors. TOYO DENKI SEIZO KABUSHIKI KAISHA. 25 June, 1965 [2 July, 1964; 5 March, 1965], No. 27165/65. Heading H2J. [Also in Division G3] An induction motor has silicon controlled rectifiers 3-3b replacing the star-point of primary or secondary windings 1-1b, the speed of the motor being controlled by adjusting the firing-angle of the rectifiers. One of the rectifiers is fired separately to provide directcurrent braking. For power operation of the motor, the outputs of saw-tooth generators 5-5b are superimposed upon a reference voltage from source 7 which is opposed by the output of tachometer generator 10. The resultant voltages are applied to phase-control circuits 9-9b providing the gating signals for the rectifiers. During motoring operation, the gating signals are retarded if the motor speed increases. A further saw-tooth generator 15 and phase-control circuit 18 are associated with the rectifier 3 for stable speed operation when the motor is over-driven by the load. The tachometer generator may be replaced by a device responsive to the torque or output power of the motor.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3752764 | 1964-07-02 | ||
| JP1243165 | 1965-03-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1116375A true GB1116375A (en) | 1968-06-06 |
Family
ID=26348052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2716565A Expired GB1116375A (en) | 1964-07-02 | 1965-06-25 | Speed control system for induction motors |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1538186B1 (en) |
| GB (1) | GB1116375A (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1170513B (en) * | 1962-02-17 | 1964-05-21 | Licentia Gmbh | Device for regulating the speed of a three-phase slipring rotor motor in both directions of rotation |
-
1965
- 1965-06-25 GB GB2716565A patent/GB1116375A/en not_active Expired
- 1965-07-02 DE DE19651538186 patent/DE1538186B1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DE1538186B1 (en) | 1970-03-05 |
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