二阶系统性能改善的Matlab仿真分析  

MATLAB-based simulation analysis on improvement of second-order system performance

作　　者：刘洋[1] 杨薇[1] 张付杰[1] 

机构地区：[1]昆明理工大学现代农业工程学院,云南昆明650500

出　　处：《现代电子技术》2012年第12期98-100,共3页Modern Electronics Technique

摘　　要：掌握系统性能随参数变化的规律性,对于分析和设计系统是十分重要的。在二阶系统中,一般采用比例-微分控制和测速反馈控制改善其性能。这里利用Matlab对校正前后的系统进行仿真,分析两种方法对二阶系统性能改善的效果。同时通过实例计算,得出比例-微分控制和测速反馈控制均可使系统快速性和稳定性提高。仿真结果表明,两种方法均可显著改善二阶系统的性能。It is very important for the systems＂ analysis and designs to grasp the variation regularity of system performance with parameters. In the second-order systems, the proportion-differential control and tachometer feedback control are used to improve its property generally. The system before and after correction is simulated with Matlab. The result of a second-order system performance improved separately by two methods is analyzed. Through the calculation with an instance, both control methods of proportion- differential control and tachometer feedback control can improve the rapidity and stability of the system. The simulation result indi- cates that both of the two methods can observably improve the performance of second-order systems.

关 键 词：二阶系统 比例-微分控制 测速反馈控制 MATLAB 

分 类 号：TN919-34[电子电信—通信与信息系统]