电液伺服加载系统数字控制的研究

 以电液施力系统为对象,讨论了数字控制在电液伺服系统中的应用.将开闭环控制优化设计方法应用到该系统中,通过微机,A/D,D/A板来实现对电液伺服系统的控制,同时对PID(比例积分微分)算法也进行了一定的研究.阐述了该系统的硬件、软件及实验.对这两种算法的实验的结果进行了对比分析,它们均能实现电液伺服控制,但是从效果来看,开闭环算法的控制指标高于PID算法的指标.最后对多余力的消除进行了研究,实验结果表明消除多余力的方法是成功的,行之有效的.

Study of Digital Control in Electrohydraulic Sero Loading System

This paper discusses the application of digital control in electro hydraulic Servo loading system.With a microcomputer and a A/D and D/A module,applying a open closed loop optimized design method, the control in electro hydraulic servo system is realized. Besides, some PID algorithm is studied. It interprets the system hardware,software,and experiment.On the basis of full throretical design,a lot of experimental researches are made.Experimental results of the two algorithm are analysed by comparison and in effect,the indexes of open closed loop algorithm are higher than those of PID algorithm.Finally,this paper studied the extraneous force's elimination.Experimental results proved that the method of eliminating extraneous force is successful and effective.