JPS648896A - Variable speed controller for induction motor - Google Patents
Variable speed controller for induction motorInfo
- Publication number
- JPS648896A JPS648896A JP62201231A JP20123187A JPS648896A JP S648896 A JPS648896 A JP S648896A JP 62201231 A JP62201231 A JP 62201231A JP 20123187 A JP20123187 A JP 20123187A JP S648896 A JPS648896 A JP S648896A
- Authority
- JP
- Japan
- Prior art keywords
- induced voltage
- motor
- vector
- voltage
- 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)
- Inverter Devices (AREA)
Abstract
PURPOSE:To achieve high performance speed control without requiring a means for detecting speed directly, by predicting angular speed of rotor from primary current and voltage of an induction motor. CONSTITUTION:An induced voltage operating circuit 22 operates alpha-axis component Ealpha and beta-axis component Ebeta of an induced voltage from a motor voltage, motor current and motor coefficient. A vector rotary unit 24 carries out coordinate conversion of the induced voltage to flux axis operated after a current model 10 and produces EM, ET. A regulator 25 operates EM with polarity corresponding to that of ET such that the phase of detected flux vector in the induced voltage vector and the phase of flux vector operated after the current model will go to zero, and produces an angular speed omegaE.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62201231A JPH0773438B2 (en) | 1986-09-11 | 1987-08-12 | Variable speed controller for induction motor |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21262586 | 1986-09-11 | ||
JP61-212625 | 1986-09-11 | ||
JP62201231A JPH0773438B2 (en) | 1986-09-11 | 1987-08-12 | Variable speed controller for induction motor |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS648896A true JPS648896A (en) | 1989-01-12 |
JPH0773438B2 JPH0773438B2 (en) | 1995-08-02 |
Family
ID=26512674
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62201231A Expired - Fee Related JPH0773438B2 (en) | 1986-09-11 | 1987-08-12 | Variable speed controller for induction motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0773438B2 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993026081A1 (en) * | 1992-06-16 | 1993-12-23 | Kabushiki Kaisha Yaskawa Denki | Vector controller of induction motor |
EP0673110A1 (en) * | 1994-03-18 | 1995-09-20 | Fuji Electric Co. Ltd. | Variable speed control apparatus for induction motor |
WO1997024796A1 (en) * | 1995-12-29 | 1997-07-10 | D-Tech Gmbh Antriebstechnik Und Mikroelektronik | Compensated field-orientated control (kfo) |
US5828199A (en) * | 1996-08-08 | 1998-10-27 | Fuji Electric Co., Ltd. | Variable speed controller for an induction motor |
US6404162B1 (en) | 1999-05-21 | 2002-06-11 | Fuji Electric Co., Ltd. | Variable-speed controlling device for use with an induction motor |
JP2007185099A (en) * | 2007-04-03 | 2007-07-19 | Hitachi Ltd | Sensorless controlling unit for synchronous generator, and controlling method |
JP2008099350A (en) * | 2006-10-06 | 2008-04-24 | Fuji Electric Fa Components & Systems Co Ltd | Vector controller of induction motor |
US8102141B2 (en) | 2008-08-26 | 2012-01-24 | Kabushiki Kaisha Toshiba | Inverter device |
-
1987
- 1987-08-12 JP JP62201231A patent/JPH0773438B2/en not_active Expired - Fee Related
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993026081A1 (en) * | 1992-06-16 | 1993-12-23 | Kabushiki Kaisha Yaskawa Denki | Vector controller of induction motor |
EP0673110A1 (en) * | 1994-03-18 | 1995-09-20 | Fuji Electric Co. Ltd. | Variable speed control apparatus for induction motor |
US5532570A (en) * | 1994-03-18 | 1996-07-02 | Fuji Electric Co., Ltd. | Variable speed control apparatus for induction motor |
WO1997024796A1 (en) * | 1995-12-29 | 1997-07-10 | D-Tech Gmbh Antriebstechnik Und Mikroelektronik | Compensated field-orientated control (kfo) |
US5828199A (en) * | 1996-08-08 | 1998-10-27 | Fuji Electric Co., Ltd. | Variable speed controller for an induction motor |
US6404162B1 (en) | 1999-05-21 | 2002-06-11 | Fuji Electric Co., Ltd. | Variable-speed controlling device for use with an induction motor |
JP2008099350A (en) * | 2006-10-06 | 2008-04-24 | Fuji Electric Fa Components & Systems Co Ltd | Vector controller of induction motor |
JP2007185099A (en) * | 2007-04-03 | 2007-07-19 | Hitachi Ltd | Sensorless controlling unit for synchronous generator, and controlling method |
US8102141B2 (en) | 2008-08-26 | 2012-01-24 | Kabushiki Kaisha Toshiba | Inverter device |
Also Published As
Publication number | Publication date |
---|---|
JPH0773438B2 (en) | 1995-08-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |