Advantages of Variable Frequency Drive

  • Energy Savings: The best advantages of Variable Frequency Drive (VFD) is that we can save a lot of energy by using them. As they can control the speed of the motor as per our needs, which helps us.
  • Speed Variations: As we know by using VFD we can control the speed and also can vary it according to us, by this we can control the motor according to our means and also not harm the motor by heavy use.
  • Soft Starting: As we know that by the help of slow starting the mechanical stress is reduced on the motor which helps the motor to work efficiently which increases the life span of the motor.
  • Extended Machine Life and Less Maintenance: As the motor starts softly and properly the machines life is increased due to which we get benefit that we don’t have to maintain the machine on daily basis. This reduces the workload of the operator.
  • High Power Factor: The power factor is the measure of how we can deliver the electrical power efficiently. By using VFD the power factor is increased and by adjusting the phase between the voltage and current the unity is 1. Which increases the machines efficiency.

Variable Frequency Drive

Variable Frequency Drive (VFD) is the type of AC motor drive that controls the speed and the torque. It can control the speed by changing the frequency of the current. They can also control the speed and torque of the motor by changing the voltage. They are the motors of the modern world. Most industries are now shifting to use VFD as they are easy to use and can be controlled by software. VFDs are not only used in large-scale industries but also used in small-scale industries as well.


Table of Content

  • Variable Frequency Drive
  • Types
  • Components and Operation
  • Working
  • Advantage
  • Disadvantage
  • Applcations


Variable Frequency Drive


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What is a Variable Frequency Drive?

A Variable Frequency Drive (VFD) is a device which is used in a system that has an AC motor, Operator Interface and Controller Assembly. It is also called as Adjustable Speed Drive (ASD) or Inverter Drive....

Types of VFD

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Components and Operation of Variable Frequency Drive

It works in four main stages...

How Does a Variable Frequency Drive Work?

The Variable Frequency Drive is a motor that can control a motor by changing its frequency and the voltage that is supplied. By this we can easily control the speed, acceleration and torque of the motor. This will help us to run the motor in more efficient way and not harming the motor....

Advantages of Variable Frequency Drive

Energy Savings: The best advantages of Variable Frequency Drive (VFD) is that we can save a lot of energy by using them. As they can control the speed of the motor as per our needs, which helps us.Speed Variations: As we know by using VFD we can control the speed and also can vary it according to us, by this we can control the motor according to our means and also not harm the motor by heavy use.Soft Starting: As we know that by the help of slow starting the mechanical stress is reduced on the motor which helps the motor to work efficiently which increases the life span of the motor.Extended Machine Life and Less Maintenance: As the motor starts softly and properly the machines life is increased due to which we get benefit that we don’t have to maintain the machine on daily basis. This reduces the workload of the operator.High Power Factor: The power factor is the measure of how we can deliver the electrical power efficiently. By using VFD the power factor is increased and by adjusting the phase between the voltage and current the unity is 1. Which increases the machines efficiency....

Disadvantages of Variable Frequency Drive

Higher Cost: VFD have much more cost as compared to normal motor control methods.Complexity : Using VFD is not as simple as to control normal methods, it requires some knowledge in programming field.Heat Generation: VFD generate a large amount of heat when they are in use, so we need proper ventilation system.Motor Compatibility : As we know VFD is a new technology, so older generation motors are not suitable for them, we need motors which are suitable for them.Maintenance Requirements : VFD’s require regular maintenance so that they could work properly.Voltage Transients : As the speed changes in an instant due to which the load on motor can increase and which can cause transients inside the system, by this the performance will be decreasing and life of the motor will shorten....

Applications of Variable Frequency Drive

VFD have many wide range of applications like...

Conclusion

Now we can conclude that VFDs are very powerful technology in new world which we can use for controlling the speed of AC motors. We can get advantage in various ways like Energy Savings, Nice motor life, more flexibility in motors and advanced method to control speed of motors. VFDs are the long time answer to control the speed of the motor which needs proper maintenance and planning to get proper execution of the task....

Variable Frequency Drive – FAQs

What are the additional features of VFD?...