摘要
在采用采样控制来解决冷轧机AGC系统中测厚仪滞后问题时,由于忽略液压伺服系统的惯性,使得当采样周期等于纯滞后时间时不能达到相应的控制效果。本文在选择采样周期时将液压系统影响考虑在内,并提出辨识液压系统的等效惯性时间常数的方法。仿真结果和实际应用证明该方法控制效果良好。
The sampling control was applied in AGC system for cold-strip mill to solve the problem of dead time existed in thickness gauge closed loop,in view of the inertia of the hydraulic servo-system,the control effect is not satisfactory when sample period(equal) to the dead time.Considering the effect of the hydraulic system when selecting sample period, the method of identification of the inertia of the hydraulic system was put forward.The simulation result and the application show that the control effect is ex...
出处
《机床与液压》
北大核心
2006年第11期160-161,200,共3页
Machine Tool & Hydraulics
基金
河北省科学技术研究与发展计划项目(03213543D)
关键词
液压AGC
采样周期
滞后
辨识
Hydraulic AGC
Sample period
Dead time
Identification
