密频系统的反馈控制

FEEDBACK CONTROL OF CLOSELY SPACED MODE SYSTEM

摘要: 研究了如何将结构重频系统设计中的反馈控制律用到含有密频子结构的系统上去，主要解决了如何估计将重频系统控制律用到相应的密频系统对闭环系统的（指数）衰减律的影响，原系统的结构参数有少量变化后的新系统以及原系统是不可控的密频系统的情形．理论和数值算例表明，只要对重频系统设计的反馈律作正确的坐标变换，应用到上述三种情形时，其闭环系统的衰减律的误差只有相应频率分散度的一阶小量

Abstract: This paper studies closely spaced mode system using feedback control law designed for repeated mode system. The damping factors of close loop system is analysised in three cases, the repeated mode system's feedback controller used in closely spaced mode system, in closely spaced mode system with parameter perturbation, in partly controllable closely spaced mode system.It is shown that with right coordinate transformation in the cases, the error of th...