In Part 2 of this blog, the harmonic current distortion of a typical Variable Frequency Drive (VFD) is discussed, as well the possible solutions to the problems that this causes.
Active Front End or (AFE) units are also discussed and some of the issues that they themselves present.
DOWNLOADS:
comparison_of_pwm_vfds_v__resonant_link_converters_for_oilfield_esp_duty___part_2_.pdf