Danfoss VFD (Variable Frequency Drives)

A Variable Frequency Drive (VFD), also known as a variable speed drive or adjustable speed drive, is an electronic device used to control the speed and torque of electric motors. It is widely employed in various industrial applications, HVAC systems, conveyor systems, and more.
The main purpose of a VFD is to provide speed control for electric motors. By adjusting the frequency and voltage of the power supplied to the motor, a VFD allows precise control of the motor's speed. This flexibility in motor speed enables efficient operation, improved energy consumption, and the ability to match the motor's output to the requirements of the driven equipment.
VFDs are particularly suitable for AC electric motor control, especially for three-phase induction motors commonly used in industrial settings. They utilize various control techniques, including pulse width modulation (PWM), to generate the desired frequency and voltage output to the motor. PWM involves rapidly switching the input power to create a simulated sine wave with adjustable frequency and voltage levels.