JPS5720197A - Variable speed control systen for induction motor - Google Patents
Variable speed control systen for induction motorInfo
- Publication number
- JPS5720197A JPS5720197A JP9360680A JP9360680A JPS5720197A JP S5720197 A JPS5720197 A JP S5720197A JP 9360680 A JP9360680 A JP 9360680A JP 9360680 A JP9360680 A JP 9360680A JP S5720197 A JPS5720197 A JP S5720197A
- Authority
- JP
- Japan
- Prior art keywords
- speed
- bridge circuit
- induction motor
- speed control
- variable speed
- 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
- 230000006698 induction Effects 0.000 title abstract 2
- VOXZDWNPVJITMN-ZBRFXRBCSA-N 17β-estradiol Chemical compound OC1=CC=C2[C@H]3CC[C@](C)([C@H](CC4)O)[C@@H]4[C@@H]3CCC2=C1 VOXZDWNPVJITMN-ZBRFXRBCSA-N 0.000 title 1
- 230000001360 synchronised effect Effects 0.000 abstract 4
- 239000004065 semiconductor Substances 0.000 abstract 2
- 238000004804 winding Methods 0.000 abstract 1
Landscapes
- Control Of Ac Motors In General (AREA)
Abstract
PURPOSE:To permit control of a speed at a value more than a synchronous speed, by employing a self-arc-extinguishing type semiconductor element as a power converter. CONSTITUTION:To the secondary side of an induction motor IM, a bridge circuit 1 having a gate turnoff thyristor 1a as a self-arc-extinguishing type semiconductor element is connected. To said bridge circuit 1, a bridge circuit 2 having a thyristor 2a is connected through a reactor L. Moreover, said bridge circuit 2 is connected to the same power source ei as the primary winding of the motor IM through a transformer. Thereby, the control of a speed more than a synchronous speed can be performed by making the bridge circuit 1 function as a forward converter at a speed less than the synchronous speed while as a reverse converter at a speed more than the synchronous speed. In addition, employing the gate turnoff thyristor for the bridge circuit 2 permits an excellent speed control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9360680A JPS5720197A (en) | 1980-07-09 | 1980-07-09 | Variable speed control systen for induction motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9360680A JPS5720197A (en) | 1980-07-09 | 1980-07-09 | Variable speed control systen for induction motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5720197A true JPS5720197A (en) | 1982-02-02 |
Family
ID=14086982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9360680A Pending JPS5720197A (en) | 1980-07-09 | 1980-07-09 | Variable speed control systen for induction motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5720197A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01212694A (en) * | 1988-02-19 | 1989-08-25 | Taiyo Kensetsu:Kk | Stop device for barge |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS511923A (en) * | 1974-06-26 | 1976-01-09 | Tokyo Shibaura Electric Co | Judodendokino seigyosochi |
-
1980
- 1980-07-09 JP JP9360680A patent/JPS5720197A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS511923A (en) * | 1974-06-26 | 1976-01-09 | Tokyo Shibaura Electric Co | Judodendokino seigyosochi |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01212694A (en) * | 1988-02-19 | 1989-08-25 | Taiyo Kensetsu:Kk | Stop device for barge |
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