Image for Illustration purposes only. Actual product may vary
A variable-frequency drive (VFD) (also termed flexible-frequency drive, variable speed drive, AC drive, micro drive or inverter drive) is a kind of adjustable-speed drive used in electromechanical drive systems to control AC motor speed and torque by altering motor input signal frequency and voltage.
VFDs are used in programs including small appliances to the greatest of compressors and mine factory drives. That lack of penetration highlights important energy efficiency improvement opportunities for new and retrofitted VFD installments.
Over the last four decades, electricity electronics technology has enhanced functionality through improvements in semiconductor switching devices, drive topologies, management and simulation techniques, and control hardware and applications and has reduced VFD price and size.
VFDs are for sale in several distinct low- and medium-voltage AC- DC and AC -AC topologies.