The VFD Panel (Variable Frequency Drive Panel), also known as a VFD Control Panel, is designed to regulate the speed of electric motors and feed pumps. These panels are extensively used in various large machine applications, including drilling, pumping, conveyors, and compressors.
AC motor speed can be managed either by adjusting voltage or frequency. Frequency control offers superior regulation due to maintaining constant flux density, which is where VFDs excel. A VFD is a power conversion device that transforms fixed voltage and fixed frequency input power into variable voltage and variable frequency output, enabling precise control of AC induction motors.
Industrial applications typically demand variable speeds during peak load conditions and constant speeds during normal operations. VFDs operate in a closed-loop system, ensuring that the motor speed remains constant despite input and load fluctuations.