JPS55150786A - Induction motor starting system - Google Patents
Induction motor starting systemInfo
- Publication number
- JPS55150786A JPS55150786A JP5650279A JP5650279A JPS55150786A JP S55150786 A JPS55150786 A JP S55150786A JP 5650279 A JP5650279 A JP 5650279A JP 5650279 A JP5650279 A JP 5650279A JP S55150786 A JPS55150786 A JP S55150786A
- Authority
- JP
- Japan
- Prior art keywords
- starting
- motor
- turned
- time
- voltage
- 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
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
- H02P1/26—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual polyphase induction motor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor And Converter Starters (AREA)
Abstract
PURPOSE:To facilitate starting of an electric motor, by impressing, at the time of starting of an induction motor, step wise AC voltage onto the motor in such a manner and for such a period of time that this impression is done thoroughly to the maximum value but not to such an extent as to cause saturation to the motor. CONSTITUTION:When, at the time of starting of an induction motor, a variable frequency inverter 5 is operated by a starting frequency and a switch 23 is turned on, a rectifier 2 is commanded to pass a current suitable for a starting current referance signal 21. At this time, a sine-wave step input is given to the motor whereby excessive DC and AC components induced to the rotor side interact with rotating magnetic field each other to increase starting torque. And then, switches 23 and 22 are turned off and on, respectively, for switchover to voltage control by starting voltage reference signal 24. After the motor was accelerated to a prescribed speed, a speed reference input switch 16 is turned on to raise an output 18 of an inclination signal generation circuit, and when an output 19 of a pattern circuit 13 exceeded a prescribed voltage, a diode 26 is turned on and a diode 25 is turned off to execute voltage control by pattern output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5650279A JPS55150786A (en) | 1979-05-09 | 1979-05-09 | Induction motor starting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5650279A JPS55150786A (en) | 1979-05-09 | 1979-05-09 | Induction motor starting system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55150786A true JPS55150786A (en) | 1980-11-22 |
| JPS6215033B2 JPS6215033B2 (en) | 1987-04-06 |
Family
ID=13028879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5650279A Granted JPS55150786A (en) | 1979-05-09 | 1979-05-09 | Induction motor starting system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55150786A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022259459A1 (en) * | 2021-06-10 | 2022-12-15 | 東芝三菱電機産業システム株式会社 | Drive device and control method |
-
1979
- 1979-05-09 JP JP5650279A patent/JPS55150786A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022259459A1 (en) * | 2021-06-10 | 2022-12-15 | 東芝三菱電機産業システム株式会社 | Drive device and control method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6215033B2 (en) | 1987-04-06 |
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