JPS57135696A - Controlling method for induction motor - Google Patents
Controlling method for induction motorInfo
- Publication number
- JPS57135696A JPS57135696A JP56019917A JP1991781A JPS57135696A JP S57135696 A JPS57135696 A JP S57135696A JP 56019917 A JP56019917 A JP 56019917A JP 1991781 A JP1991781 A JP 1991781A JP S57135696 A JPS57135696 A JP S57135696A
- Authority
- JP
- Japan
- Prior art keywords
- motor
- induced voltage
- magnetic flux
- voltage
- secondary induced
- 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
Abstract
PURPOSE:To safely operate the commutation of a converter by feeding back the secondary induced voltage of an AC motor to the magnetic flux control circuit of the motor and providing a closed loop compensating circuit to equalize the secondary voltage to the prescribed secondary induced voltage reference CONSTITUTION:The secondary induced voltage e2 of an induction motor 13 is detected, and is calculated and amplified by an arithmetic amplifier 30 so that the voltage e2 becomes equal to the secondary induced voltage reference e2* obtained by the product of a speed feedback signal¦Wm¦and calculated secondary magnetic flux value phi2, and the magnetic flux reference signalI1d* is compensated by closed loop with the output of the amplifer 30. When the magnetic flux weakening abrupt acceleration or deceleration is performed for the motor 13, the secondary induced voltage e2 of the motor 13 becomes constant in the weakening range, and accordingly the terminal voltage becomes as rated, thereby safely performing the commutation operation of the converter.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56019917A JPS57135696A (en) | 1981-02-13 | 1981-02-13 | Controlling method for induction motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56019917A JPS57135696A (en) | 1981-02-13 | 1981-02-13 | Controlling method for induction motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57135696A true JPS57135696A (en) | 1982-08-21 |
Family
ID=12012566
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56019917A Pending JPS57135696A (en) | 1981-02-13 | 1981-02-13 | Controlling method for induction motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57135696A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02303388A (en) * | 1989-05-15 | 1990-12-17 | Toshiba Corp | Controller for induction motor |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5546887A (en) * | 1978-09-29 | 1980-04-02 | Toshiba Corp | Control device for induction motor |
-
1981
- 1981-02-13 JP JP56019917A patent/JPS57135696A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5546887A (en) * | 1978-09-29 | 1980-04-02 | Toshiba Corp | Control device for induction motor |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02303388A (en) * | 1989-05-15 | 1990-12-17 | Toshiba Corp | Controller for induction motor |
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