Current Distribution Strategy Of AC Asynchronous Motor

With the increasing attention to environmental pollution and the successful application of electric drive transportation,the development of new energy vehicles,especially blade electric vehicles is rapid.The Chinese government is trying to curb pollution and reduce its dependence on imported oil.Relevant departments of China have issued relevant policies on new energy vehicles to support the development of the new energy automobile industry.With the development of smart electric vehicles,the development of China's automobile industry will embrace unprecedented new opportunities,especially the development of pure electric vehicles.The control algorithm of electric drive system is a core technology of electric vehicle technology.This paper mainly studies the current distribution strategy for ac asynchronous motor control.The mathematical model of the asynchronous motor is established in the stator coordinate system and the rotor coordinate system,and two reference frames are compared and analyzed in this paper.According to the constraint condition of asynchronous motor,the operation stage of asynchronous motor is divided.Besides,the operation of the asynchronous motor in different areas to maximize the optimal current torque control strategy is Analyzed,and this paper also analyzes how to optimize the asynchronous motor flux regulator in order to improve the dynamic fast response of magnetic flux.In this paper,to verify the current distribution strategy,the simulation model of motor control system is set up by MATLAB/Simulink.The model simulation and test of the control algorithm are analyzed,the simulation results are analyzed and the code generation is carried out.We also complete the bench test,calibrate the external characteristic curve of the motor and verify in the actual motor control system.