Variable Frequency Drives (VFDs) are devices that are used primarily in industrial and commercial applications to control the speed of a motor. This enables huge cost savings, as compared to constantly running motors at full speed – thanks to VFDs, users can adjust speeds and torque accordingly depending on the application they’re using. But what is the official definition of a Variable Frequency Drive? In business terms, a Variable Frequency Drive is an electric motor control system that adjusts the rotation frequency and voltage of an AC motor to control its speed and torque. The controlling of these two variables increases the efficiency of machinery, reduces energy consumption, and ultimately leads to greater user satisfaction. By understanding and utilizing VFDs, businesses can achieve optimal performance for any application.