JPS5532472A - Synchronous motor - Google Patents
Synchronous motorInfo
- Publication number
- JPS5532472A JPS5532472A JP10522978A JP10522978A JPS5532472A JP S5532472 A JPS5532472 A JP S5532472A JP 10522978 A JP10522978 A JP 10522978A JP 10522978 A JP10522978 A JP 10522978A JP S5532472 A JPS5532472 A JP S5532472A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- motor
- load
- effective value
- armature 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.)
- Granted
Links
Landscapes
- Control Of Ac Motors In General (AREA)
Abstract
PURPOSE: To reduce the loss of driving electric power, improve the reception power- factor, decrease the fluctuation in voltage on a power reception point and lengthen the lifetime of a synchronous motor, by effieiently performing the advanced-phase operation of the motor.
CONSTITUTION: When there is an ordinary load upon the synchronous motor 1, the motor is controlled by an excitation reference current setting circuit 10. When there is no load or a small load on the motor, an effective value difference is determined from the armature current and an effective value reference by an effective value calculation circuit 4, a reference signal generation circuit 5 and a calculation processing circuit 6 and discriminated by a discrimination circuit 7. The output of the circuit 7 is applied to an excitation current control circuit 8. Then, a phase control circuit 3 regulates the armature current by thyristor turn-on point control so that the armature current is minimized under the load and the advanced-phase operation of the motor is performed.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53105229A JPS5828839B2 (en) | 1978-08-29 | 1978-08-29 | synchronous motor device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53105229A JPS5828839B2 (en) | 1978-08-29 | 1978-08-29 | synchronous motor device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5532472A true JPS5532472A (en) | 1980-03-07 |
JPS5828839B2 JPS5828839B2 (en) | 1983-06-18 |
Family
ID=14401820
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53105229A Expired JPS5828839B2 (en) | 1978-08-29 | 1978-08-29 | synchronous motor device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5828839B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5765297A (en) * | 1980-10-08 | 1982-04-20 | Hitachi Ltd | Controller for synchronous motor |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5325090A (en) * | 1976-08-20 | 1978-03-08 | Yamanouchi Pharma Co Ltd | Device for diagnosing electrocardiogram |
-
1978
- 1978-08-29 JP JP53105229A patent/JPS5828839B2/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5325090A (en) * | 1976-08-20 | 1978-03-08 | Yamanouchi Pharma Co Ltd | Device for diagnosing electrocardiogram |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5765297A (en) * | 1980-10-08 | 1982-04-20 | Hitachi Ltd | Controller for synchronous motor |
JPS6036719B2 (en) * | 1980-10-08 | 1985-08-22 | 株式会社日立製作所 | Synchronous motor control device |
Also Published As
Publication number | Publication date |
---|---|
JPS5828839B2 (en) | 1983-06-18 |
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