JPS5475524A - Control device of synchronous motor - Google Patents
Control device of synchronous motorInfo
- Publication number
- JPS5475524A JPS5475524A JP14338677A JP14338677A JPS5475524A JP S5475524 A JPS5475524 A JP S5475524A JP 14338677 A JP14338677 A JP 14338677A JP 14338677 A JP14338677 A JP 14338677A JP S5475524 A JPS5475524 A JP S5475524A
- Authority
- JP
- Japan
- Prior art keywords
- output
- current
- armature current
- torque
- deviation
- 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)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
PURPOSE: To make a proportional relation between armature current and generated torque, regardless of increase or decrease of frequency, by comparing electric current standard which is eqivalent to armature current value with mean torque signal, and controlling field current with this deviation.
CONSTITUTION: When a synchronous motor 17 is driven by cyclon converter, each phase voltage of the motor 17 is detected with a detector 33, this output and together with output from current detector 20 and output from generator 19 are given to mean torque detecting circuit 34, this output and output in speed control circuit 28 which is equivalent to value of armature current are compared in comparative calculation circuit 35, and field windings J,K are controlled. Therefore, the relation between armature current and generated torque shows an excellent linearity, because field flux is controlled, coresponded to mean torque and deviation of electric current, and even though frequency would be increased or decreased, operation characteristic of power factor 1 can be obtained.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14338677A JPS5475524A (en) | 1977-11-30 | 1977-11-30 | Control device of synchronous motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14338677A JPS5475524A (en) | 1977-11-30 | 1977-11-30 | Control device of synchronous motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5475524A true JPS5475524A (en) | 1979-06-16 |
Family
ID=15337556
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14338677A Pending JPS5475524A (en) | 1977-11-30 | 1977-11-30 | Control device of synchronous motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5475524A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6074987A (en) * | 1983-09-29 | 1985-04-27 | Okuma Mach Works Ltd | Controller of synchronous motor |
-
1977
- 1977-11-30 JP JP14338677A patent/JPS5475524A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6074987A (en) * | 1983-09-29 | 1985-04-27 | Okuma Mach Works Ltd | Controller of synchronous motor |
JPH0681540B2 (en) * | 1983-09-29 | 1994-10-12 | オ−クマ株式会社 | Synchronous motor controller |
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