%0 Journal Article
%T A Digital Fast Precise Positioning Servo-System Using Non-Linear Feedback<br>数字式非线性反馈快速精密定位系统
%A Li Yonghua
%A Zhu Lin
%A <br>李永华
%A 朱林
%J 自动化学报
%D 1992
%I 
%X This positioning servo-system consists of a 16 bits microcomputer, PWM, and optocoders. In order to accomplish the positionting control fast and precisely, a Bang-bang control scheme combined with a non-linear velocity feedback is proposed. The Bang-bang is responsible for the large deviation, while the velocity feedback for the small deviation. The switching between these two states is determined by the microcomputer.The principles of non-linear feedback control and its applications to the saturated systems and high order systems are described, and the optimality of the above control principles is discussed. The discrimination criterion of the segment transformation is deduced. The results of simulations and real time control systems are illustrated.
%K Positioning servo-system
%K finite time settling response
%K non-linear feedback
%K Bang-bang control<br>定位系统
%K 非线性反馈
%K B－b控制
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=E76622685B64B2AA896A7F777B64EB3A&aid=A3C6B9BC329BD2EBD375C0EA14F0068F&yid=F53A2717BDB04D52&vid=13553B2D12F347E8&iid=38B194292C032A66&sid=31BCE06A2FD82A16&eid=AA5FB09E1F81059E&journal_id=0254-4156&journal_name=自动化学报&referenced_num=0&reference_num=1