DESIGN OF THREE PHASE BUCK-BOOST INVERTER WITH BUFFER INDUCTOR FOR ELECTRIC VEHICLES

The electric vehicle with induction motor drive has an average battery weight is thirty percent of the overall weight despite using lithium-ion technology. One way to reduce the weight of the battery is to design the inverter which has strengthened the high voltage or current. This paper presented the design of three phase buck-boost inverter with buffer inductor (TPBBI-BI) The performance of the inverter topology was tested using a power simulator program. The inverter was designed with a proper component of inductors and capacitors. The inverter characteristics can be seen by giving a resistor load on the inverter. It was shown that the inverter can produce a sinusoidal output voltage and current with an amplification of more than three times. A simulation was also carried out in a case of an inverter loaded to three-phase induction motor with a specific torque and moment of inertia. It was demonstrated that the inverter still can produce the sinusoidal output voltage and current and can reduce the applied torque and thus a stable condition of the inverter can be maintained. The proposed inverter is suitable to be implemented for the electric vehicle.