FIELD: electricity.
SUBSTANCE: electric drive comprises a three-phase rectifying bridge, to which ends of asynchronous motor stator windings are connected. Polar outputs of the three-phase rectifying bridge via transistors are connected to a zero wire of supply voltage and to supply voltage via polar outputs of the other diode bridge. Points of stator winding connection to the three-phase rectifying bridge are also connected to the zero wire via RC-circuits.
EFFECT: reduced voltage on switches and switching overvoltages arising in process of operation, and provision of a dynamic braking mode.
2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| ELECTRIC DRIVE WITH THREE-PHASE ASYNCHRONOUS MOTOR | 2010 |
|
RU2418356C1 |
| MAGNET-VALVE CONVERTER FOR DC ELECTRIC DRIVE | 2011 |
|
RU2472283C1 |
| REVERSIBLE DC ELECTRIC DRIVE | 2011 |
|
RU2472282C1 |
| ELECTRIC DRIVE WITH THE ASYNCHRONOUS MOTOR OF A LOAD LIFTING AND LOWERING MECHANISM | 2017 |
|
RU2663879C1 |
| REGULATING DEVICE FOR ASYNCHRONOUS MOTOR | 2015 |
|
RU2596218C1 |
| FOUR-QUADRANT LOW-VOLTAGE AC DRIVE AND METHOD OF ITS CONTROL | 2017 |
|
RU2660187C1 |
| LOW-VIBRATION FREQUENCY-CONTROLLED ELECTRIC DRIVE AND METHOD OF CONTROLLING SAID ELECTRIC DRIVE | 2017 |
|
RU2702761C2 |
| ASYNCHRONOUS MOTOR SOFT START-UP DEVICE | 2013 |
|
RU2530532C1 |
| CONTROL DEVICE FOR SINGLE-PHASE ASYNCHRONOUS MOTOR | 2013 |
|
RU2542717C2 |
| 0 |
|
SU524298A1 |
