FIELD: electrical engineering. SUBSTANCE: frequency changer has cascade converter, two induction machines 2,3, valve-type switch 15 in the form of three-phase semiconductor switching devices 18,19,20, carrier-frequency discrimination unit 16 connected to control signal distributor 17. Bidirectional triode thyristors are used as switching devices. EFFECT: improved design. 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| FREQUENCY CONVERTER | 0 |
|
SU1833958A1 |
| INDEPENDENT POWER SYSTEM OF STABLE FREQUENCY | 0 |
|
SU1823128A1 |
| CONTROL METHOD FOR THYRISTOR FREQUENCY CHANGER WITH THREE-PHASE CARRIER-FREQUENCY VOLTAGE SOURCES | 0 |
|
SU1805534A1 |
| MACHINE-RECTIFIER SOURCE OF THREE-PHASE STABLE-FREQUENCY VOLTAGE | 0 |
|
SU1144171A1 |
| CONVERTER OF D.C.VOLTAGE TO THREE-PHASE A.C.MULTISTEP VOLTAGE | 0 |
|
SU1032567A1 |
| DEVICE TO CONTROL AND ENSURE DURABILITY OF DOUBLE-FED MOTOR | 2013 |
|
RU2525294C1 |
| MACHINE-POWER DIODE SOURCE OF STABLE FREQUENCY THREE-PHASE VOLTAGE | 0 |
|
SU729776A1 |
| DC VOLTAGE TO THREE-PHASE AC VOLTAGE CONVERTER | 0 |
|
SU970607A1 |
| MACHINE-POWER DIODE SOURCE OF THREE-PHASE STABLE FREQUENCY VOLTAGE | 0 |
|
SU782086A1 |
| SOURCE OF THREE-PHASE STABLE FREQUENCY VOLTAGE | 0 |
|
SU1046862A1 |
