摘要
很多工业过程控制系统都包含有纯时延,克服纯时延是改善时延过程控制系统品质的关键性问题。本文分析了Smith预估控制系统的一些缺陷,提出了在未知被控过程的参数和时延时进行改进型smith预估控制的方案,从而克服了Smith预估控制系统的缺陷,数字仿真的结果表明,本文所提出的方案正确并具有一定的实用价值。
There are many controlled processes in industry containing time-delays. It is important to eliminate time-delays in order to improve the control quality. On the base of a■sing shortcoming of Smith predictor control system, the paper puts forward modified Smith predictor control system with unknown time-delays and prameters. It eliminated the shorcoming of Smith predictor control system. The results of digital simulatian verify its correct and practical.
