ELECTRIC VEHICLE-TO-VEHICLE (V2V) ENERGY TRANSFER USING MOTOR INVERTER AND WINDING

Abstract

Among the most effective methods for lowering automobile emissions is the electrification of automobiles. People are hesitant to promote electric cars (EVs) due to concerns about their range. By addressing the "last mile" issue, energy transfer between EVs helps reduce range anxiety in an emergency. Nevertheless, optimising efficiency is not taken into account by the current vehicleto-vehicle (V2V) energy-sharing technique, which relies on motor inverters and motor windings. A novel V2V architecture is suggested to solve this problem by utilising a control mechanism involving soft-switching and a decreased switching frequency. When transferring power from a voltage source to a motor with an inductor winding and core made of silicon steel, a reduced switching frequency can significantly cut down on core loss. Simulation results at 150 kW and laboratory scale-down power tests at 1.5 kW prove the efficacy of the suggested strategy. This research presents a novel vehicle-to-vehicle (V2V) energy transfer technique that utilises the inverters and windings of two electric vehicles to address these issues. The suggested technique makes advantage of three-phase interleaved control, which enables the effective and smooth sharing of power between two vehicles. The control system modifies the duty cycle and switching frequency in response to the needed power level and the voltages of the batteries. The system becomes adaptable and can handle various charging situations because of this. The concept was validated through the use of 150 kW simulation testing and 1.5 kW laboratory studies. The outcomes demonstrate that the system is functioning as intended, achieving extremely high efficiency while maintaining a motor torque close to zero. About 99.47% efficiency was the highest value measured. In conclusion, this study lays forth a straightforward, inexpensive, and very effective method of V2V charging that makes use of already electric vehicle parts. Reduced energy loss and improved reliability are the results of the suggested method's use of soft-switching control and low switching frequency operation. This method can alleviate concerns about EV range and make them more useful in times of urgency when charging is not an option.