A variable-frequency drive (VFD) is a system for controlling the rotational speed of an alternating current (AC) electric motor by controlling the frequency of the electrical power supplied to the motor. A variable frequency drive is a specific type of adjustable-speed drive. Variable-frequency drives are also known as adjustable-frequency drives (AFD), variable-speed drives (VSD), AC drives, microdrives or inverter drives. Since the voltage is varied along with frequency, these are sometimes also called VVVF (variable voltage variable frequency) drives.
Does anyone know what type of drive (Cyclo, LCI, VSI) is MOST efficient and why?
In light of the pf ranges used by each drive... my guess is that Cyclo are not the most efficient type of drive... but is the VSI significantly more efficient?
AC DRIVE
Re: AC DRIVE
