JPS54144920A - Brushless exciter - Google Patents
Brushless exciterInfo
- Publication number
- JPS54144920A JPS54144920A JP5270378A JP5270378A JPS54144920A JP S54144920 A JPS54144920 A JP S54144920A JP 5270378 A JP5270378 A JP 5270378A JP 5270378 A JP5270378 A JP 5270378A JP S54144920 A JPS54144920 A JP S54144920A
- Authority
- JP
- Japan
- Prior art keywords
- current
- reactance
- stator winding
- field current
- detected
- 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 provide a substantiality in the rotor portion without directly detecting a field current, by such means that, with a reactance connected in parallel to the stator winding of a rotary transformer, the field current be detected from a difference between currents of the stator winding and the reactance.
CONSTITUTION: With a reactance 7 connected in parallel to the stator winding W1 of a rotary transformer 3, currents in the stator winding and the reactance are detected by a current transformer 6, 8, and its difference is compared with a command signal Ifp of field current by a current deviation amplifier 10. And by this output, through a firing pulse transmitting rotary transformer 13, is controlled a thyristor converter 5. Accordingly, a level and phase of conduction current in the reactance 7 becoming a relation of similarity with the field current, with a difference obtained between the above and the current in the current transformer 6, the field current can be detected in good precision, simultanesously with a simplification made capable for the constitution of the rotor portion because of a detection being made at the stator side.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5270378A JPS54144920A (en) | 1978-05-04 | 1978-05-04 | Brushless exciter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5270378A JPS54144920A (en) | 1978-05-04 | 1978-05-04 | Brushless exciter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54144920A true JPS54144920A (en) | 1979-11-12 |
Family
ID=12922241
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5270378A Pending JPS54144920A (en) | 1978-05-04 | 1978-05-04 | Brushless exciter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54144920A (en) |
-
1978
- 1978-05-04 JP JP5270378A patent/JPS54144920A/en active Pending
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