Synthesis of a vector control system for an electric vehicle motor with direct torque control
Abstract
Synthesis of a vector control system for an electric vehicle motor with direct torque control
Incoming article date: 09.11.2020The article demonstrates the problem of controlling an asynchronous motor of an electric vehicle in the acceleration mode and maintaining the speed of the vehicle at the desired value with dynamically changing torque. To solve the problem, the dynamics of the movement of an electric vehicle was described, a vector control system with direct torque control with switching the inverter keys was described, which provides a rapid change in the electromagnetic moment practically without changing the speed of rotation of the motor rotor. On the basis of the given model, the system was synthesized in the Matlab / Simulink package, and the simulation results were obtained. The synthesized control strategies ensure the achievement of the set task of accelerating and stabilizing the speed of an electric vehicle, taking into account the passport characteristics of an electric vehicle, and the stability of a closed system.
Keywords: electric vehicle, control systems, vehicle dynamics, vector control, direct torque control