在连续控制系统离散相似法数字仿真中不同离散化方法的影响

本文讨论了用S—Z代换的不同离散化方法获得的仿真模型,在选取不同采样时间时,对系统仿真精度、稳定性、超调量、调节时间的影响。为在连续系统仿真中离散化方法和采样时间的选择提供了参考依据。

The Effect of Different Discretization Methods in Digital Simulation by Discrete Similar Method for Contiuatue System

This paper, taking concrate second-order system for example, describes that the simulate models, which were obtained from different discrati zation method by the means of s-z transformation, have effect on accuracy, stability, overshoot and the settling time of the system, as the sampling time is different. It provides the refernce basis for the selection of the discretization methods and the sampling time in continuous system simulation. At the end of the paper the author simply shows the block diagrams and the algorithm of the simulation program.