具有能控性的数字式控制器的设计  

Design of a Digital Controller with Controllability

作　　者：谢小平[1] 廖云[2] 刘顺发[1] 陈洪斌[1] 

机构地区：[1]中国科学院光电技术研究所,四川成都610209 [2]电子科技大学光电子技术信息学院,四川成都610054

出　　处：《光电工程》2002年第2期13-15,共3页Opto-Electronic Engineering

摘　　要：系统在控制作用支配下能够在有限时间间隔内从任意初始状态向任意希望状态转移,则其具有能控性。通过输出序列和功率谱建立系统数学模型,并采用最小二乘法估计模型参数。具有能控性的数字式控制器通过软件控制状态反馈元素,消除不稳定的因素,从而使系统具有灵活性和控制稳定的特点。If a system can transfer a arbitrary initial state toward arbitrary desired state within a finite time interval under the governing of the control action, then it has controllability. A mathematical model of the system has been established through the output sequence and the power spectrum. The model parameters are estimated with least square method. The digital controller with controllability controls feedback elements of state with software and eliminates the instable factors, thus the system has the characteristics of flexibility and stable control.

关 键 词：能控性 数字式控制器 设计 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] TM571.65[自动化与计算机技术—控制科学与工程]