I will explain What is VFD? The variable frequency drive (VFD) working principle & use in the electric train engine locomotive is also explained.
The variable frequency drive ( VFD) is a type of control system, which control the speed of the AC motor by changing the frequency of the AC supply to the motor using the PWM concept.
Further, V/f control and vector control type VFD difference and types of VFD variable speed drive are explained. The benefits of VFD, unity power factor, DC link, and IGBT inverter function in the variable speed drive are also explained.
Then, the Calculation of motor RPM from the frequency of the supply is also explained. How to calculate the rpm of the motor is explained. The frequency pole RPM formula is also explained.
An Educational electrical engineering, power electronics video tutorial 201 by G K Agrawal (Gopal Krishna Agrawal). The lecture is given by a person with industrial experience.
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https://www.facebook.com/gopalkrishna... You learned what is VFD ? and the concept of the Variable frequency drive VFD is explained for use in the train engine.
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