JPS56110496A - Controlling system for induction motor - Google Patents
Controlling system for induction motorInfo
- Publication number
- JPS56110496A JPS56110496A JP1048680A JP1048680A JPS56110496A JP S56110496 A JPS56110496 A JP S56110496A JP 1048680 A JP1048680 A JP 1048680A JP 1048680 A JP1048680 A JP 1048680A JP S56110496 A JPS56110496 A JP S56110496A
- Authority
- JP
- Japan
- Prior art keywords
- inverter
- output
- induction motor
- impedance
- power inverter
- 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 make the ratio of induced voltage to inverter source frequency constant by a method wherein a power inverter is PWM-controlled through the output of the power inverter and a sine wave generator, and the impedance of a series inverter is made negative. CONSTITUTION:An inverter 3 is formed by a power rectifier 1 and a power inverter 3 PWM-controlled, and primary frequency-controls an induction motor IM. The speed of revolution of the induction motor IM is detected 18, a speed set point (omegagamma)s and a revolution detecting value omegagamma are compared 51, and deviation output is forwarded to a regulator 33 rectilinearly increasing the output. The output (I1)s of the regulator 33 and a detecting value I1 detected by means of a current transformer 35 from the output side of the power inverter 3 are compared 34, and voltage and frequency are varied by means of a sine wave oscillator 37 through a regulator 36. By a PWM control circuit 39, the power inverter 3 is controlled in a thyristor gate shape, and the series impedance of the inverter can be changed into negative impedance which offsets the primary impedance of the induction motor IM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1048680A JPS56110496A (en) | 1980-01-31 | 1980-01-31 | Controlling system for induction motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1048680A JPS56110496A (en) | 1980-01-31 | 1980-01-31 | Controlling system for induction motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56110496A true JPS56110496A (en) | 1981-09-01 |
Family
ID=11751490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1048680A Pending JPS56110496A (en) | 1980-01-31 | 1980-01-31 | Controlling system for induction motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56110496A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0356088A (en) * | 1989-07-20 | 1991-03-11 | Tajima Eng Kk | Controlling method for induction motor, and film taking-up method using its controlling method |
| JPH0360393A (en) * | 1989-07-26 | 1991-03-15 | Tajima Eng Kk | Induction motor control method and film winding method making use of its control method |
| FR2672987A1 (en) * | 1991-02-19 | 1992-08-21 | Mecanique Magnetique Sa | ANGULAR SENSOR, ESPECIALLY FOR ROTATING MACHINES WITH VERY HIGH ROTATION SPEED. |
| CN107257217A (en) * | 2017-08-15 | 2017-10-17 | 昆山华恒焊接股份有限公司 | A kind of direct current generator feedback driving circuit and method |
-
1980
- 1980-01-31 JP JP1048680A patent/JPS56110496A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0356088A (en) * | 1989-07-20 | 1991-03-11 | Tajima Eng Kk | Controlling method for induction motor, and film taking-up method using its controlling method |
| JPH0360393A (en) * | 1989-07-26 | 1991-03-15 | Tajima Eng Kk | Induction motor control method and film winding method making use of its control method |
| FR2672987A1 (en) * | 1991-02-19 | 1992-08-21 | Mecanique Magnetique Sa | ANGULAR SENSOR, ESPECIALLY FOR ROTATING MACHINES WITH VERY HIGH ROTATION SPEED. |
| CN107257217A (en) * | 2017-08-15 | 2017-10-17 | 昆山华恒焊接股份有限公司 | A kind of direct current generator feedback driving circuit and method |
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