JPS5768694A - Controller for synchronous motor - Google Patents
Controller for synchronous motorInfo
- Publication number
- JPS5768694A JPS5768694A JP55142070A JP14207080A JPS5768694A JP S5768694 A JPS5768694 A JP S5768694A JP 55142070 A JP55142070 A JP 55142070A JP 14207080 A JP14207080 A JP 14207080A JP S5768694 A JPS5768694 A JP S5768694A
- Authority
- JP
- Japan
- Prior art keywords
- power
- synchronous motor
- factor
- change
- output
- 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
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
- H02P25/022—Synchronous motors
- H02P25/024—Synchronous motors controlled by supply frequency
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
PURPOSE:To remove an abnormal phenomenon such as the step-out of the synchronous motor by correcting an unstable condition due to the change of a loop gain of an automatic power-factor control system of a field current circuit owing to the change of load. CONSTITUTION:An active power detector 10 outputs value proportional to the active power of the synchronous motor 1, and the output is multiplied 12 by the deviation value of the output value of a power-factor detector 8 to the set value of a power-factor setter 6 through a function generator 11. Consequently, the amplification degree of the output of the multiplier 12 is varied by the magnitude of load. Accordingly, the amplification degree of the automatic control system is varied automatically by the quantity of the active power of the synchronous motor 1, and the unstable condition due to the change of the gain of an automatic power-factor control loop can be corrected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55142070A JPS5768694A (en) | 1980-10-13 | 1980-10-13 | Controller for synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55142070A JPS5768694A (en) | 1980-10-13 | 1980-10-13 | Controller for synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5768694A true JPS5768694A (en) | 1982-04-27 |
Family
ID=15306723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55142070A Pending JPS5768694A (en) | 1980-10-13 | 1980-10-13 | Controller for synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5768694A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5329223A (en) * | 1992-06-26 | 1994-07-12 | Green Technologies, Inc. | Ideal voltage controller for conserving energy in inductive loads |
| US5444359A (en) * | 1992-06-26 | 1995-08-22 | Green Technologies, Inc. | Load sensitive variable voltage motor controller |
-
1980
- 1980-10-13 JP JP55142070A patent/JPS5768694A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5329223A (en) * | 1992-06-26 | 1994-07-12 | Green Technologies, Inc. | Ideal voltage controller for conserving energy in inductive loads |
| US5444359A (en) * | 1992-06-26 | 1995-08-22 | Green Technologies, Inc. | Load sensitive variable voltage motor controller |
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