双立置闭环高精度、大惯量控制系统设计

摘要

In the control system of large mechanical transmission,the semi closed loop control system is equivalent the mechanical transmission error to the load,it is difficult to ensure the precision of the control system.The use of closed-loop control method,due to mechanical transmission clearance,friction and load effection of large inertia,causes system nonlinear self oscillating,that does not show a smooth phenomenon in the process of operation.Based on the analysis and research above,this paper puts forward the method of the double position loop control system,which can overcome the influence of the mechanical transmission error on the control system,and can achieve a high positioning accuracy.%在大型传动机械组成的控制系统中,使用半闭环控制系统会将机械的传动误差折合到负载端,很难保证控制系统的位置定位精度;使用全闭环控制方法时,由于机械传动间隙、摩擦力以及负载大惯量的影响,会引起系统的非线性自振荡,使系统在运行过程中表现出速率不平稳的现象.基于以上现象的分析和研究,提出双位置闭环控制系统设计方法,克服机械传动误差对控制系统的影响,保证系统的速率平稳性,并能达到很高的定位精度.