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.
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