JPS54131716A - Static scherbius apparatus - Google Patents
Static scherbius apparatusInfo
- Publication number
- JPS54131716A JPS54131716A JP3952078A JP3952078A JPS54131716A JP S54131716 A JPS54131716 A JP S54131716A JP 3952078 A JP3952078 A JP 3952078A JP 3952078 A JP3952078 A JP 3952078A JP S54131716 A JPS54131716 A JP S54131716A
- Authority
- JP
- Japan
- Prior art keywords
- motor
- resistor
- switch
- torsional torque
- section
- 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.)
- Granted
Links
Landscapes
- Control Of Ac Motors In General (AREA)
Abstract
PURPOSE: To increase torsional torque in a vibration speed section where increase in the torsional torque of motor shaft has so far raised a problem by eliminating harmonic torque through speed control with the secondary current of the motor flowing only to the resistor.
CONSTITUTION: Upon end of on-action of a switch S1, an off-command is fed to a switch S2. Then, with the switch turned off, a controllable electric valve of an inverter IV is controlled in shift to such a control angle β that the output voltage reaches its highest level. Therefore, the current Id flowing through a converter turns to zero immediately and all the secondary current of the motor flows to a resistor LRH. This is confined to such a period that a detection circuit RSD sends output "1", namely a section where resonance increases the torsional torque of the motor. However, the section contains no harmonic component because the motor current flows only through the resistor.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3952078A JPS54131716A (en) | 1978-04-04 | 1978-04-04 | Static scherbius apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3952078A JPS54131716A (en) | 1978-04-04 | 1978-04-04 | Static scherbius apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54131716A true JPS54131716A (en) | 1979-10-13 |
JPS5727676B2 JPS5727676B2 (en) | 1982-06-11 |
Family
ID=12555309
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3952078A Granted JPS54131716A (en) | 1978-04-04 | 1978-04-04 | Static scherbius apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54131716A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6162384A (en) * | 1984-08-30 | 1986-03-31 | Shinko Electric Co Ltd | Switching method of scherbius operation to secondary resistance control operation |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49133827A (en) * | 1973-04-26 | 1974-12-23 |
-
1978
- 1978-04-04 JP JP3952078A patent/JPS54131716A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49133827A (en) * | 1973-04-26 | 1974-12-23 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6162384A (en) * | 1984-08-30 | 1986-03-31 | Shinko Electric Co Ltd | Switching method of scherbius operation to secondary resistance control operation |
Also Published As
Publication number | Publication date |
---|---|
JPS5727676B2 (en) | 1982-06-11 |
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