Modeling and simulation of an asynchronous motor drive for the traction of an control electric vehcle fed by an inverter controlled using svpwm

The agreement on climate change which took place in France and Germany respectively in 2015 and 2017, show the international community's willingness to migrate fossil fuels to green energy. The development of electric vehicles plays a very important role in reducing the use of fossil fuels, which have a detrimental effect on the ozone layer, leading to an alarming increase in the greenhouse effect. The electric machines are one of the basic technologies for electric vehicles because they ensure the transformation of electrical energy into mechanical energy. Traditionally, the DC motor is the most used for traction of electric vehicles due to the ease of its control. With the evolution of power electronics components, AC motors specifically, the permanent magnet motor and the squirrel cage induction motor have become more and more used machines in the traction of electric vehicles. The Space Vector Pulse Width Modulation (SVPWM) is the most widely used because of its multiple advantages such as the ease of harmony filtering, the ability to vary the fundamental output quantities, and the permission of the power supply of several inverter assemblies, asynchronous motors from the same continuous source. In this article, we used a three-phase induction motor, a DC voltage source (lithium-ion battery) and an inverter controlled by the SVPWM control technique to simulate and then predict the dynamic and transient behavior of the induction motor for electric vehicle engine system. At last, we performed a direct torque control to apply this motor in our dynamic system. The system has been simulated in Matlab Simulink. The simulation results show that the electrical and mechanical behavior is satisfactory with a total harmonic distortion (THD) current of 3.53% and a power range of 50kW. The results were obtained by simulating the operation at both no-load and under-load conditions. The maximum current absorbed by the motor at no-load and at under-load conditions is 5A and 40A, respectively.