基于极点配置算法的列车横向半主动悬挂自适应PID控制系统设计

为了使PID控制器具备自适应能力,以适应列车受到外部环境扰动时产生的结构参数变化,使用了增量式数字PID控制器,将PID控制器与极点配置控制算法结合,利用极点配置算法在线实时优化kP,kI,kD参数,设计了自适应极点配置PID控制器,实现了kP,kI,kD参数的自动校正。最后给出基于极点配置自适应PID的高速列车半主动悬挂控制系统的设计方案,利用MATLABSimulink搭建仿真平台并进行仿真。仿真结果表明:基于极点配置算法的列车半主动悬挂自适应PID控制系统能够有效降低列车横向振动。

Design of adaptive PID control system of vehicle lateral semi-active suspension based on pole placement algorithm

In order to let the PID controller to have adaptive ability,suiting to the changing structural parameters when the train is interfered by the external environment,incremental digital PID controller is used.The adaptive pole placement PID controller is designed by combining PID controller and the pole placement algorithm to optimize the kP,kIand kDparameters online and correct themselves automatically.Then,based on the pole placement algorithm adaptive PID controller,the semi-active suspension control system of the high-speed trains is presented.The simulation results by using MATLAB-Simulink show that lateral vibration of the train is effectively reduced by the semi-active suspension adaptive PID control system.