Power Electronics
Power Electronics
Enhancing reliability, efficiency, power density and dynamic performance.
Enhancing reliability, efficiency, power density and dynamic performance.
VFD.mp4
Variable-Frequency Drive for 3-phase induction motor
Components & Parameters:
MOSFET (IRFP240)
Arduino UNO
Driver (A3120)
DC voltage 120 V
Carrier frequency 3.9kHz
Conventional 3-phase inverter with 6 switches
SPWM technique
Hardware setup
Basic 3-phase circuitÂ
Isolated dc source for gate driver
3-phase inverter circuit
Basic driver circuit with MOSFET
3-phase induction motor
Gate pulses
Gate pulses
Dead band of complementary pulses
Output voltage and current waves
Data Table (Although max frequency is shown 50 Hz here, later the max frequency was increased to around 80 Hz )
Frequency versus speed curve