JPS5713991A - Operation system of induction motor - Google Patents
Operation system of induction motorInfo
- Publication number
- JPS5713991A JPS5713991A JP8464380A JP8464380A JPS5713991A JP S5713991 A JPS5713991 A JP S5713991A JP 8464380 A JP8464380 A JP 8464380A JP 8464380 A JP8464380 A JP 8464380A JP S5713991 A JPS5713991 A JP S5713991A
- Authority
- JP
- Japan
- Prior art keywords
- output
- setter
- signal
- speed
- switch
- 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
Landscapes
- Control Of Ac Motors In General (AREA)
Abstract
PURPOSE: To elevate the torque-speed characteristic and the efficiency by switching a half-wave type cycloconverter and a primary voltage control in combination.
CONSTITUTION: In a low speed area where the output signal level of a speed setter 11 is lower than the reference value of the output of a switching level setter 14, a comparator 15 fails to produce a signal. A switch 6 is closed with a signal L outputted from a switching signal geneator 16 to turn the connection of a main circuit 3 of an induction motor 2 to a three-phase AC half-wave type cycloconverter. A voltage of a tacho generator 8 is computed 10 with the output of the speed setter 11 and the output is fed to a gate control circuit 13L by way of a speed control amplifier 12 to control a thyristor device 3 with the output thereof. When the output of the setter 11 is larger than that of the setter 14, a comparator 15 provides an output to close a switch 7 with a signal H of a generator 16 while the switch 6 is opened. With a gate control circuit 13H, the connection of the main circit is turned to a thyristor diode mixed antiparallel type three-phase primary voltage control power converter.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8464380A JPS5713991A (en) | 1980-06-24 | 1980-06-24 | Operation system of induction motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8464380A JPS5713991A (en) | 1980-06-24 | 1980-06-24 | Operation system of induction motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5713991A true JPS5713991A (en) | 1982-01-25 |
Family
ID=13836369
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8464380A Pending JPS5713991A (en) | 1980-06-24 | 1980-06-24 | Operation system of induction motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5713991A (en) |
-
1980
- 1980-06-24 JP JP8464380A patent/JPS5713991A/en active Pending
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