A new topology of three phase buck-boost inverter with buffer inductor

The electric vehicle inverter requires an induction motor drive with a high output of voltage and current to reduce the number of batteries used and in turn to reduce the vehicle's weight. In this paper, a new topology of a three-phase buck-boost inverter (TPBBI) with a buffer inductor (BI) is proposed. The performance of the proposed inverter topology was tested using a power simulator program. The inverter was designed with a proper component of inductors and capacitors. For a given load resistor, 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.