What is the Variable Frequency Drive (VFD), How Does It Work, and Why Use It in Commercial HVAC Units?
A Variable Frequency Drive (VFD) is a motor controller commonly used for three-phase motors. Other names for Variable Frequency Drive include: Variable speed drive Adjustable speed drive Adjustable frequency drive Inverter AC drive Microdrive What makes VFDs unique is that they vary the frequency and voltage given to the electric motor based on its electrical …