Why is Variable Frequency Drive (VFD) Used with Electrical Motor? A variable frequency drive (VFD) is a type of motor controller that controls the frequency and voltage of the power supply to drive an electric motor. There are other terms to describe VFDs, including adjustable speed drive, AC drive, Variable speed drive, Variable speed drive, and Microdrive. In other applications, a variable frequency drive can also be used to control the motor’s ramp-up and ramp-down for better efficiency and performance. Even though the drive regulates the frequency and voltage of the power supplied to the motor, we often refer to it as speed control because the result is a change in motor speed. The frequency of a motor is proportional to its speed (RPMs). To put it another way, the higher the frequency, the higher the RPMs. If you do not require your motor to run at its full speed, the VFD can be used to reduce the frequency and voltage to meet the load requirements of the electric motor. VFD can simply increase or decrease the motor speed to meet the speed requirement as the application’s motor speed requirements change. There are several reasons why we might want to change the motor’s speed, including: • To improve system efficiency for energy-efficient performance • In hybridization applications for power conversion • To match the drive’s speed to the process’s demands • To Match a drive’s torque or power to the process requirements. • To enhance the working environment. • To reduce noise levels produced by fans and pumps • To extend the life of machines by reducing mechanical stress. • To boost production by improving process control • Reduce peak consumption to avoid peak-demand prices and the size of the required motor. • Reduce the maintenance and repair required during the motor’s lifetime A variable frequency drive (VFD) is an essential component in every motor-driven system. Today’s VFDs drive incorporate networking and
Why is Variable Frequency Drive (VFD) Used with Electrical Motor?
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