JPS5762798A - Three-phase induction motor speed control device - Google Patents
Three-phase induction motor speed control deviceInfo
- Publication number
- JPS5762798A JPS5762798A JP55136717A JP13671780A JPS5762798A JP S5762798 A JPS5762798 A JP S5762798A JP 55136717 A JP55136717 A JP 55136717A JP 13671780 A JP13671780 A JP 13671780A JP S5762798 A JPS5762798 A JP S5762798A
- Authority
- JP
- Japan
- Prior art keywords
- speed
- generating device
- signal
- changeover
- ratio
- 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.)
- Pending
Links
Abstract
PURPOSE:To shorten length of time for shifting form high-speed operation to low- speed operation, by switching the operation temporarily to a speed of a large-width control torque when making a changeover of the operation from the high speed to the low speed by thinned out power supply. CONSTITUTION:A mode changer F which changes an input signal of a six-cycle ring counter D from an output of a 1/n frequency divider C to an output signal of a reference signal generating device B, a dynamic braking device 1 which actuates an ignition phase adjuster G, a signal generating device E which sends out reference signals by phases having prescribed phasic difference with one cycle of (6n-1)/2[or (6n+1)/2]of a power source voltage, and a poulse generating device H which generates an ignition pulse from a logic product of this reference signal and an ignition phase adjusting signal are all provided. And, after speed of an electric motor is reduced form 1/5(1/7) ratio to 1/11(1/13) ratio of the rated speed by changeover of the mode changer F, it is stopped by the dynamic braking.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55136717A JPS5762798A (en) | 1980-10-02 | 1980-10-02 | Three-phase induction motor speed control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55136717A JPS5762798A (en) | 1980-10-02 | 1980-10-02 | Three-phase induction motor speed control device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5762798A true JPS5762798A (en) | 1982-04-15 |
Family
ID=15181839
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55136717A Pending JPS5762798A (en) | 1980-10-02 | 1980-10-02 | Three-phase induction motor speed control device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5762798A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02114894A (en) * | 1988-10-21 | 1990-04-26 | Hitachi Ltd | Controller for motor |
US7913536B2 (en) * | 2005-07-29 | 2011-03-29 | Sensata Technologies Holland B.V. | Compensation arrangement and method for operation thereof |
-
1980
- 1980-10-02 JP JP55136717A patent/JPS5762798A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02114894A (en) * | 1988-10-21 | 1990-04-26 | Hitachi Ltd | Controller for motor |
US7913536B2 (en) * | 2005-07-29 | 2011-03-29 | Sensata Technologies Holland B.V. | Compensation arrangement and method for operation thereof |
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