解决城轨车辆电机空转的非奇异终端滑模控制

A Non-singular Terminal Sliding Mode Control Method for Idling of Urban Rail Vehicle

摘要:

针对城市轨道车辆行驶中出现轮对打滑的控制问题,使用一种非奇异终端滑模控制方法,基于城轨车辆永磁同步电机数学方程,建立永磁同步电机矢量控制模型,参考非奇异终端滑模控制策略,模拟列车控制系统应对打滑的控制步骤;在Matlab环境下建立仿真模型,仿真结果表明,与传统PID控制相比,采用非奇异终端滑模控制,牵引电机可以在更短的时间内到达给定值,且对于扰动具有鲁棒性, 轨道车辆在轮对发生打滑的情况下可以更快更稳定地恢复到平稳运行区。

Abstract:

Aiming at the slip problem of rail vehicle which often appears when train running, nonsingular terminal sliding-modes are used for rail vehicles. Based on the mathematical equations of permanent magnet synchronous motor, established the vector control model. referred to the nonsingular terminal sliding-mode control strategy and imitated the response to the slip problems. The simulink model was founded by Matlab. The results show that, the output torque can reach the given values in a shorter period of time than that of a traditional PID control strategy, which controled by nonsingular terminal sliding mode. And system is robust with respect to the disturbances. Rail vehicle can reach stable operation region more faster and stable in the case of slipping.