一种应用于摊铺行驶系统辨识的变延时Smith预估策略

传统的摊铺行驶系统建模只能得到该系统的近似传递函数,本文通过系统辨识不同行驶速度条件下的输入输出数据,得到了摊铺行驶系统较为精确的模型。针对传统PID控制在延时系统中的不足,本文提出了一种变延时的smith预估策略,并进行了仿真,仿真结果证明了该策略的有效性。

The physical modeling of the paver can only acquire approximate transfer function, while this thesis carries out system identification for input and output data of a paver hydraulic walking system at different speeds, to obtain more precise model of the paver. Aiming at shortage of traditional PID control in delay system, this thesis proposes a smith prediction strategy for variable delay time, and implements simulation; and the simulation result proves validity of the strategy.