PWM STRATEGY FOR REGENERATIVE MULTILEVEL DRIVE

摘要

A method 70 of controlling a multilevel regenerative drive 30 comprising a converter 32 and an inverter 34 is disclosed. The method (70) includes applying at least one of unipolar modulation and bipolar modulation to the converter (32), and applying at least one of unipolar modulation and bipolar modulation to the inverter (34). can do. A control system 52 for a mechanical system 20 with a motor 28 is also disclosed. The control system 52 may include a converter 32 operably connected to a power source 29, and an inverter 34 operably connected to the motor 28 of the mechanical system 20. . At least one controller can communicate with the converter 32 and the inverter 34 and be configured to apply at least one of unipolar modulation and bipolar modulation to each of the converter 32 and the inverter 34. I can.