二阶动力学系统的干扰解耦与抑制  

Disturbance decoupling and rejection in second-order dynamic systems

作　　者：王国胜[1] 王子华[1] 段广仁[1] 

机构地区：[1]哈尔滨工业大学控制理论与制导技术研究中心,黑龙江哈尔滨150001

出　　处：《系统工程与电子技术》2004年第11期1640-1643,共4页Systems Engineering and Electronics

基　　金：国家杰出青年基金资助课题(69925308)

摘　　要：利用二阶动力学系统的比例加微分反馈特征结构配置结果,给出了利用比例加微分反馈实现二阶动力学系统干扰解耦的充要条件和求解二阶动力学系统干扰抑制问题的一种有效算法。该方法在优化特征结构配置提供自由参数的同时,亦可在一定希望的区域内优化闭环极点,使闭环系统满足一定的性能要求。此外,该方法直接基于二阶动力学系统参数矩阵,便于工程应用。以三级质量弹簧系统为例进行了仿真实验,实验结果表明了所提方法的有效性。By utilizing an eigenstructure assignment result via proportional-plus-derivative feedback in second-order dynamic systems, necessary and sufficient conditions for disturbance decoupling in second-order dynamic systems are established, and an algorithm for disturbance rejection in second-order dynamic systems is proposed. This proposed algorithm optimizes not only the free parametric vectors offered by the eigenstructure assignment technique, but also the closed-loop eigenvalues within certain prescribed areas. In addition, the method utilizes directly the system data of the original second-order dynamic system, and thus is convenient to use in practical applications. A three-spring-mass-dashpot system example and simulation results show the effectiveness of the proposed method.

关 键 词：二阶动力学系统 比例加微分反馈 特征结构配置 干扰解耦 干扰抑制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]