| 摘要 |
PURPOSE:To perform stable operation by inserting a series reactor to the primary sides of a plurality of induction motors when the motors are operated in parallel by a sole inverter and balancing the loads of the motors. CONSTITUTION:Squirrel-cage induction motors 60a-60c are simultaneously controlled by an inverter 48, DC reactors 70a-70c are respectively inserted into the primary sides of the motors 60a-60c. The loads of the motors 60a-60c are balanced by regulating the voltage drop due to the DC reactors 70a-70c to match the torque characteristics of the motors 60a-60c. |
