JPS54155418A - Controller for ac motor - Google Patents
Controller for ac motorInfo
- Publication number
- JPS54155418A JPS54155418A JP6400678A JP6400678A JPS54155418A JP S54155418 A JPS54155418 A JP S54155418A JP 6400678 A JP6400678 A JP 6400678A JP 6400678 A JP6400678 A JP 6400678A JP S54155418 A JPS54155418 A JP S54155418A
- Authority
- JP
- Japan
- Prior art keywords
- converter
- converters
- load side
- electrification
- inverse
- 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 permit the commutation of thyristor under good condition by alternately electrifying two thyristor forward-inverse power converters with direct current intermediate circuit on a controllable basis.
CONSTITUTION: The controller consists of the first forward-inverse power converter in which the power souce side converter 3 and the load side converter 4 are connected with the DC reactor 5, the secondary forward-inverse power converter in which the power source side converter 6 and the load side converter 7 are connected with the DC reactor 8 connected magnetically with the DC reactor 5, and the controlling device 10 to control each converter with respect to electrification. For setting up the load side converters 4 and 7 of each forward-inverse power converter for a fixed electrification period and permitting the alternate electrification between them, the commutation of the load side converters is made by making the power source side converters 3 and 6 do an alternate forward-inverse conversion work synchronously with the load side electrification command. Thus, when the variable speed control of AC motor is made, the commutation of thyristor can be made under good condition of current wave-form by alternately electrifying the converters controllably.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6400678A JPS54155418A (en) | 1978-05-29 | 1978-05-29 | Controller for ac motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6400678A JPS54155418A (en) | 1978-05-29 | 1978-05-29 | Controller for ac motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54155418A true JPS54155418A (en) | 1979-12-07 |
Family
ID=13245663
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6400678A Pending JPS54155418A (en) | 1978-05-29 | 1978-05-29 | Controller for ac motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54155418A (en) |
-
1978
- 1978-05-29 JP JP6400678A patent/JPS54155418A/en active Pending
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