JPS55103088A - Method of controlling induction motor - Google Patents
Method of controlling induction motorInfo
- Publication number
- JPS55103088A JPS55103088A JP873579A JP873579A JPS55103088A JP S55103088 A JPS55103088 A JP S55103088A JP 873579 A JP873579 A JP 873579A JP 873579 A JP873579 A JP 873579A JP S55103088 A JPS55103088 A JP S55103088A
- Authority
- JP
- Japan
- Prior art keywords
- contactors
- motor
- contacts
- closed
- induction motor
- 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)
- Stopping Of Electric Motors (AREA)
Abstract
PURPOSE: To reduce the number of contactors without deteriorating the controlling performance of an induction motor controller which has a DC braking function, by improving the manner of connection of semiconductor rectifiers with the contactors.
CONSTITUTION: When a three-phase induction motor 1 for driving an elevator is controlled, contacts 10a, 10b, 10c, 11a, 11b of contactors are closed in upward power running to perform single-phase control by thyristors 6, 7. In downward power running, contacts 10a, 10b, 10c, 12a, 12b of contactors are closed to rotate the motor 1 in the opposite direction to the ascent and perform single-phase control of the motor. In braking, the contacts 11a, 11b, 12a, 12b of the contactors are closed both in ascent and in descent to supply the motor 1 with DC power from a mixed bridge made of thyristors 6, 7 and diodes 8, 9 and apply DC braking to the motor.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP873579A JPS55103088A (en) | 1979-01-30 | 1979-01-30 | Method of controlling induction motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP873579A JPS55103088A (en) | 1979-01-30 | 1979-01-30 | Method of controlling induction motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55103088A true JPS55103088A (en) | 1980-08-06 |
Family
ID=11701202
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP873579A Pending JPS55103088A (en) | 1979-01-30 | 1979-01-30 | Method of controlling induction motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55103088A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002153087A (en) * | 2000-11-13 | 2002-05-24 | Max Co Ltd | Ac motor drive circuit |
-
1979
- 1979-01-30 JP JP873579A patent/JPS55103088A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002153087A (en) * | 2000-11-13 | 2002-05-24 | Max Co Ltd | Ac motor drive circuit |
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