关键词: 惯量电模拟；异步电机；MATLAB；建模与仿真；底盘测功机

Abstract: According to the principle of equal kinetic energy for the vehicle on the road and on the chassis dynamometer, the inertia of the flywheel was obtained. Based on the principle of same dynamic characteristics of the driving wheel, the dynamic torque of the motor was derived. In order to accurately control the output torque of the motor and simulate vehicle inertia better, on the basis of establishing the mathematical model of the asynchronous motor in the static coordinate system, using the Simulink toolbox of MATLAB, the simulation model of the direct torque control system of electric analog motor was built and simulated. The simulation results prove the feasibility and accuracy of the control system, and provide a reference for the application of the asynchronous motor in the inertia simulation system of the chassis dynamometer.

Key words: Inertia electrical simulation; Asynchronous motor; MATLAB; Modeling and simulation; Chassis dynamometer