| 摘要 |
FIELD: electricity.SUBSTANCE: control device of asynchronous electric motors with a squirrel-cage rotor includes a DC power supply unit with non-regulated output voltage (1), DC power filter unit (2), units of self-commutated voltage inverters (3), electric motor units (4), unit of low-current DC power supply with regulated output voltage (5), shaping unit of control sine multiphase signals of variable frequency (6) and matching unit (7) of output of unit 6 with inputs of units (3).EFFECT: providing synchronous operation of N parallel operating motors, simplifying and cheapening of control diagrams, reducing electric power losses in the control diagram, reducing mass-dimensional characteristics of electric motor control device.4 dwg |
