A variable-frequency drive (VFD) or adjustable-frequency drive (AFD), variable-voltage/variable-frequency (VVVF) drive, variable-speed drive (VSD), AC drive, microdrive, or inverter drive is a type of motor drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.
A variable-frequency drive (VFD, or adjustable-frequency drives, adjustable-speed drives), variable-speed drives, AC drives, micro drives, inverter drives, or drives) is a type of AC motor drive (system incorporating a motor) that controls speed and torque by varying the frequency of the input electricity. Depending on its topology, it controls the associated voltage or current variation.
VFDs are used in applications ranging from small appliances to large compressors. Systems using VFDs can be more efficient than hydraulic systems, such as in systems with pumps and damper control for fans.
Since the 1980s, power electronics technology has reduced VFD cost and size and has improved performance through advances in semiconductor switching devices, drive topologies, simulation and control techniques, and control hardware and software.
VFDs include low- and medium-voltage AC-AC and DC-AC topologies.
DANFOSS
The VLT® Micro Drive FC 51 is small yet powerful and built to last. Panel space can be saved and installation …
Read More
The VLT® AutomationDrive FC 360 is a compact, space-saving, general-purpose AC drive. Designed with ease-of-use, reliability and flexibility in mind, the basic, …
Read More
VLT® AutomationDrive FC 301/302 takes full advantage of all that the new digital age has to offer to ensure it completely fulfills …
Read More
The enhanced VLT® HVAC FC101/102 Drive gives you more room to maneuver. It confronts the issues and gives you rock-solid reliability. With …
Read More
The VACON® 20 is packed with functionality to help improve system performance and cost efficiency. Fast installation and …
Read More
YASAKAWA
The J1000 is a world-class compact variable frequency drive that defines a new world standard. Demands for efficient production and ...
Read More
The V1000 is a world-class compact current vector drive that defines a new world standard. Demands for efficient production and ...
Read More
The A1000 is a full featured drive, providing outstanding quality, performance, flexibility, and environmental friendliness through 1000HP. Enjoy network communications, ...
Read More
The GA500 Industrial AC Microdrive is engineered to help you easily handle nearly any application. Sustainability, flexibility, and ease of ...
Read More
GA700 is the new versatile Yaskawa AC drive for industrial applications. Great flexibility, small dimensions, and built-in features allow an effortless ...
Read More
ABB
The ACS380 machinery drive comes in several variants ensuring seamless integration into machines and connecting perfectly to automation …
Read More
Engineered for general purpose applications, ABB’s all-compatible ACS560 drive is simple to select and easy to commission drive …
Read More
The ACS580 is an all-compatible ABB general purpose drive, offered in a range of wall-mounted drives, drive modules …
Read More
DELTA
The VFD-EL series is multiple function new generation micro type AC drive. It has built in EMI filter, RFI switch, …
Read More
Delta’s MS300 series is a standard compact vector control drive that inherits Delta’s superior drive technology. It supports both IM …
Read More
The C2000 Series features precise speed, torque and position control functions that are suitable for both sensor and sensorless synchronous …
Read More
FUJI
Fuji Electric’s new compact inverter FRENIC-Mini Series provides excellent performance for both single-phase and three-phase applications ...
Read More
Customizable logic function is available as a standard feature. FRENIC-Ace has built-in customizable logic functions with ...
Read More
FRENICMEGA is a high performance, multifunctional inverter Fuji Electric has developed by gathering the best of ...
Read More
With FRENIC-Lift, Fuji Electric is well established in the lift industry, and is ready and well-prepared ...
Read More
Fuji Electric Company new low-voltage FRENIC-HVAC series VFDs are slim-type inverters designed for energy savings and ...
Read More
