摘要
为了提高系统的稳态精度和动态性能,将LQR最优控制算法应用于高速经编机电子横移伺服控制系统。建立了伺服系统状态空间模型,引入了一类具有指数衰减度的二次型函数作为系统性能指标。仿真结果表明,所提出的电子横移伺服LQR最优控制算法易于工程实现,保证了系统的稳定性,具有良好的频响特性,改善了系统的动态特性,实现了无静差高精度控制。
In order to improve steady precision and dynamic performance of the system,the LQR optimal control algorithm is used in the electronic shogging servo control system of the high speed warp knitting machine. The state space model of servo system is established and the quadratic form function with exponential decay rate is introduced as the systematic performance index. The results of simulation show that the proposed electronic shogging servo LQR optimal control algorithm is easy for engineering implementation,and ensures the stability and better frequency response of the system,improves the dynamic characteristics of the system,and realizes high precision control without static error.
出处
《自动化仪表》
CAS
北大核心
2014年第9期50-53,共4页
Process Automation Instrumentation
基金
福建省科技厅高校产学合作科技重大基金资助项目(编号:2011H6023
2012H6018)
关键词
电子横移
伺服系统
线性二次调节器
最优控制
PID
Electronic shogging Servo system Linear quadratic regulator（LQR） Optimal control PID
