数字控制器设计若干问题的研究  

Research of Several Problems on the Digital Control Designing

作　　者：李建新[1] 

机构地区：[1]武汉软件工程职业学院光电子与通信工程系,湖北武汉430205

出　　处：《新技术新工艺》2009年第3期71-74,共4页New Technology & New Process

摘　　要：由计算机实现的控制器设计与控制系统连续设计相比,引出了新问题。为使离散域设计与连续域设计两种方法结果等价,深入讨论了采样周期对控制器设计的影响;对比了采样周期在不同离散方法中的影响和采样周期对系统稳定性的影响,并在MATLAB环境下仿真;给出了数字控制器设计必须服从的准则,研究结果对计算机控制器设计有指导意义。The comparisons between the controller design which is realized by the computer and the successive design of the control system leads to new problems. In order to guarantee that the results of designing in the scattered domain equals to the ones coming from the designing in the successive domain, the effect caused by the sampling period on the designing of the controller is deeply investigated. The influence of sampling period in different scattered methods and on the systematic stability is discussed. Meanwhile, all of that is imitated under the Matlab environment and the rule that the designing of the digital control utensil must abide by is presented. The result provides some guidance for the designing of the controller to some extent.

关 键 词：数字控制器 采样周期 Z变换 系统稳定性 

分 类 号：TN206[电子电信—物理电子学]