Variable Frequency Drive (VFD): Everything You Need To Know

by Vinni S. SEO Executive VFD, Variable Frequency Drive or a Variable Speed Drive, is a drive that you used to control and adjust the speed and torque in various mechanical devices. They are usually an adjustable speed drive that has been used for adding efficiency in the power electronics technology industry. This device has been revolutionary and even helped in adding not just efficiency and increasing productivity but also by reducing the effective cost by a huge margin. There are a number of VFD dealers in different parts of India that offer these devices for adjusting and controlling the voltage and frequency that is being supplied to the motors.

What Does It Contain?
• AC Motor: The first thing that it has is a three-phase induction motor. Even motors that have been designed to have fixed speed are also quite popularly used for this drive. They need to be designed to provide a very definite-purpose inverter-fed duty.
• Controller: The next and the most important component of a VFD is the controller. This is the main area where the controlling takes place. It has three further sub-systems. These are direct current links, rectifier bridge converter, and inverter.
• Operator Interface: This is the next component that makes us the variable frequency drive. This operator interface is required for starting and stopping the drive. Even the operating speed of the drive is controlled through this operator itself.

What Are The Benefits Of VFD?
There are a number of uses of VFD and that’s the reason why it is also called a revolutionary drive by many in the industry. Some of the benefits, apart from being high in efficiency, increasing productivity, and hugely economical, here are some of the benefits of VFD.
• Saves Energy: The first and foremost benefit of using a VFD is that it is known to be great for saving energy. The fixed-speed motors where direct current from AC line power is supplied can save a lot of energy if the required voltage is supplied using the VFD.
• Controls Speed Performance: Improvement in the acceleration of industrial and commercial applications can also be achieved through VFD. Not just the improvement in the quality of the output but the entire performance can also be improved using these. One can also use the variable speed created using VFD to run motors in variable patterns. This could even minimize the stress on the mechanical and electrical front.

Where Are VFDs Used?
There are a number of uses of VFD as well. The VFD dealers are consulted by individuals and businesses in different industries. Some of the important applications of VFD are:
• The AC line voltage can be converted into the DC line voltage through the superimposition of half-phase non-linear current pulses.
• One can even use the VFDs to smoothen the noise. This can be done by introducing random variations within the switching frequency of the device.
• One needs to take protective measures to avoid damages when the current frequency is 5 kHz or above. VFD can help prevent this as well.

Sponsor Ads

• Ad Space Available - Rent it Now!

Created on Nov 18th 2019 06:29. Viewed 396 times.

Comments