JPS54155417A - Control of induction motor - Google Patents
Control of induction motorInfo
- Publication number
- JPS54155417A JPS54155417A JP6392778A JP6392778A JPS54155417A JP S54155417 A JPS54155417 A JP S54155417A JP 6392778 A JP6392778 A JP 6392778A JP 6392778 A JP6392778 A JP 6392778A JP S54155417 A JPS54155417 A JP S54155417A
- Authority
- JP
- Japan
- Prior art keywords
- contact
- induction motor
- command
- current
- closed
- 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 permit the exact control of current even during high-speed operation by changing slip frequency when current command for controlling the current of induction motor is changed.
CONSTITUTION: When starting power running, the slip frequency SP is risen up at a definite time constant by closing the contacts P and ON, and when stopping command for power running is sent out, the slip frequency command SP is trailed down at a definite time constant by opening the contact ON and also by closing the contact OFF. Furthermore, when switching the power regeneration, the contact P is opened and the contact B is closed to inverse the polarity of output terminal and when starting regeneration, the contact ON is closed to trail SP. And, when stopping regeneration command, the contact ON is opened and the contact OFF is closed to rise up SP to zero level. Thus, even when inverter is operated at high frequency, the current of induction motor can be exactly controlled and also driving or braking force can be smoothly controlled over the full speed range of induction motor.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53063927A JPS6053557B2 (en) | 1978-05-30 | 1978-05-30 | Induction motor control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53063927A JPS6053557B2 (en) | 1978-05-30 | 1978-05-30 | Induction motor control device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54155417A true JPS54155417A (en) | 1979-12-07 |
JPS6053557B2 JPS6053557B2 (en) | 1985-11-26 |
Family
ID=13243456
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53063927A Expired JPS6053557B2 (en) | 1978-05-30 | 1978-05-30 | Induction motor control device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6053557B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57145503A (en) * | 1981-03-04 | 1982-09-08 | Hitachi Ltd | Controlling device of induction motor driven electric motor vehicle |
JPS5999905A (en) * | 1982-11-26 | 1984-06-08 | Toshiba Corp | Controlling method for electric rolling stock |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH046919Y2 (en) * | 1985-06-17 | 1992-02-25 |
-
1978
- 1978-05-30 JP JP53063927A patent/JPS6053557B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57145503A (en) * | 1981-03-04 | 1982-09-08 | Hitachi Ltd | Controlling device of induction motor driven electric motor vehicle |
JPH0313802B2 (en) * | 1981-03-04 | 1991-02-25 | Hitachi Ltd | |
JPS5999905A (en) * | 1982-11-26 | 1984-06-08 | Toshiba Corp | Controlling method for electric rolling stock |
Also Published As
Publication number | Publication date |
---|---|
JPS6053557B2 (en) | 1985-11-26 |
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