Abstract
In this paper, a new controll structure are proposed to sensorless vector control the in-wheel motordrive system of Electric Vehicle (EV) to improve its performance and robustness. The design of the controlleris based on Backstepping and Hamitolnion control combined with a improved stator current MRAS adaptivespeed observer proposed to estimate the vehicle speed and it also can compensate for the uncertainties causedby the machine parameter variations, measurement errors, and load disturbances, improving dynamicperformance and enhancing the robustness of the SPIM drive system, perfect tuning of the speed referencevalues, fast response of the motor current and torque, high accuracy of speed regulation. A global EV model isalso evaluated based on the vehicle dynamics in this paper. The simulation results lead to the conclusion thatthe proposed system for the propulsion system of electric vehicle is feasible. The simulation results on a testvehicle propelled by two SPIM showed that the proposed control approach operates satisfactorily
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