高速动车组永磁同步电机牵引控制仿真研究

Simulation Study on Traction Control of Permanent Magnet Synchronous Motor for High-Speed EMU

为研究永磁同步电机电流运行轨迹,分析动车组不同工况下永磁同步电机弱磁方法,首先,分析永磁同步电机最大运行能力,规划电流轨迹;其次,在动车组变工况下根据永磁同步电机交直轴电流相平面关系,按最大转矩电流比控制求解析式方程,分析最小稳定工作点,提高电机的运行效率,实现平滑过渡,并利用Simulink软件进行仿真。

In order to study the current running trajectory of permanent magnet synchronous motors and analyze the field weakening methods of permanent magnet synchronous motors under different operating conditions,the maximum operating capacity of permanent magnet synchronous motors is first analyzed,and the current trajectory is planned.The relationship between the phase and plane of the alternating current and the straight axis,the analytical equation is calculated according to the maximum torque-current ratio control,and the minimum stable operating point is analyzed to improve the operating efficiency of the motor and achieve a smooth transition.And use Simulink software for simulation.