JPS54140125A - Brushless exciting device - Google Patents
Brushless exciting deviceInfo
- Publication number
- JPS54140125A JPS54140125A JP4659078A JP4659078A JPS54140125A JP S54140125 A JPS54140125 A JP S54140125A JP 4659078 A JP4659078 A JP 4659078A JP 4659078 A JP4659078 A JP 4659078A JP S54140125 A JPS54140125 A JP S54140125A
- Authority
- JP
- Japan
- Prior art keywords
- current
- voltage
- rotary transformer
- primary
- field current
- 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 form to detect field current by difference between integrated value of impressed voltage of stator winding in rotary transformer and electric current of stator winding.
CONSTITUTION: Field current is detected indirectly, based on electric current and voltage of primary winding W1 of rotary transformer 3. On the other hand, although secondary current of rotary transformer 3 or alternating current input current of thyristor converter 5 is in proportional relation to field current, signal e0 of the equation can be obtained by integrating primary voltage, because primary current of the rotary transformer 3 is not proportioned to field current. This voltage e0 is equivalent to field current, and field current can be detected by calculating the difference of primary current and voltage e0.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4659078A JPS54140125A (en) | 1978-04-21 | 1978-04-21 | Brushless exciting device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4659078A JPS54140125A (en) | 1978-04-21 | 1978-04-21 | Brushless exciting device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54140125A true JPS54140125A (en) | 1979-10-31 |
Family
ID=12751498
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4659078A Pending JPS54140125A (en) | 1978-04-21 | 1978-04-21 | Brushless exciting device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54140125A (en) |
-
1978
- 1978-04-21 JP JP4659078A patent/JPS54140125A/en active Pending
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