DESIGN, FABRICATION AND TEST OF INSULATED GATE BIPOLAR TRANSISTOR (IGBT) INVERTER FOR THREE PHASE MOTOR DRIVE

A hybrid cars are driven by both gasoline engine and electric 3 phase brushed motor.
By using power supply from battery, a suitable motor driver (inverter) is needed to
drive that motor. This motor driver should be able to convert from battery DC voltage
to 3 phase AC voltage. Plus, the ability for this hardware to accumulate regenerative
power from kinetic energy (regenerative braking) is also been considered. Total of six
insulated gate bridge transistors (IGBT) are needed with precise gate energization
from gate driver. The driver receives input signal from microcontroller in term of
pulse width modulation for speed control purposes. This project aims to design,
construct, and fabricate the interface of IGBT input output and test the hardware on
medium power tbree phases brushed motor and brushless DC motor. The project
covers numerous of researches, tests and analysis to come with full complete working
prototype. The rational of this project is to have better understanding in working
principle of tbree phase inverter in addition with six step commutation technique for
motor drive purposes. By having a working prototype, the author can experience
great challenges and grasp more detail understanding about the subject. In this report,
there are several sections; introduction, literature review, methodology, resuh,
discussion and conclusion. In conclusion, the author hopes that this project could
actually be implemented in real industry application.