JPS6426392A - Secondary current feedback control system of induction motor - Google Patents
Secondary current feedback control system of induction motorInfo
- Publication number
- JPS6426392A JPS6426392A JP62197300A JP19730087A JPS6426392A JP S6426392 A JPS6426392 A JP S6426392A JP 62197300 A JP62197300 A JP 62197300A JP 19730087 A JP19730087 A JP 19730087A JP S6426392 A JPS6426392 A JP S6426392A
- Authority
- JP
- Japan
- Prior art keywords
- secondary current
- frequency
- induction motor
- difference
- increment
- 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 keep torque at a command value even if secondary resistance varies with a temperature variation by detecting secondary current and making the difference between the command value and the detection value zero. CONSTITUTION:A current sensor 9 detects and measures secondary current of an induction motor 5 and outputs a detection value I2 to a subtracter 10. The subtracter 10 finds the difference I2 by subtracting a command value I2 of the secondary current from a detection value I2. An integrator 11 integrates an increment of frequency proportional to a difference I2 by time and finds a frequency increment f proportional to an integral value. An adding machine 12 adds the frequency increment f to power frequency f and inputs it as the power frequency into a unit rotary vector generator 7.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62197300A JPS6426392A (en) | 1987-04-28 | 1987-08-08 | Secondary current feedback control system of induction motor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10588687 | 1987-04-28 | ||
JP62197300A JPS6426392A (en) | 1987-04-28 | 1987-08-08 | Secondary current feedback control system of induction motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6426392A true JPS6426392A (en) | 1989-01-27 |
Family
ID=26446103
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62197300A Pending JPS6426392A (en) | 1987-04-28 | 1987-08-08 | Secondary current feedback control system of induction motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6426392A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9758342B2 (en) | 2008-05-30 | 2017-09-12 | Kone Corporation | Determination of the movement of a synchronous machine |
-
1987
- 1987-08-08 JP JP62197300A patent/JPS6426392A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9758342B2 (en) | 2008-05-30 | 2017-09-12 | Kone Corporation | Determination of the movement of a synchronous machine |
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