动态寻优极值调节控制系统的仿真研究  

Simulation research an dynamically seeking the optimum of an extremum value control system

作　　者：李国强[1] 贾小军[1] 刘文江[2] 

机构地区：[1]渭南师范学院资产设备处,陕西渭南714000 [2]西安交通大学自动控制系,陕西西安710049

出　　处：《工业仪表与自动化装置》2004年第3期61-63,共3页Industrial Instrumentation & Automation

基　　金：陕西省教委专项科研基金资助项目(99JK143);国家自然科学基金资助项目(69374030)

摘　　要：　在实际工业生产过程中存在大量极值调节的问题,以往的动态寻优方法要求控制对象线性部分的数学模型已知,即N阶惯性环节的参数已知,但是要想准确地获得这些参数是非常困难的,文中经分析研究表明:可用低阶的惯性环节近似替代准确的高阶模型,仿真结果证明这种近似替代不仅是完全可行的,而且在实际工业控制过程中很容易实现,先验知识需求的降低使极值调节控制系统调试简单,使用方便。There are many extremum value control problems in an industrial process.It is necessary for the mathematical model of a linear part about a control plant to be known according to the previous way of dynamically seeking the optimum of a system,i.e.the parameters of the N order inertia segment have to be knowm.However,it is very difficult to get these parameters accurately.After an analysis and research,some important conclusions are obtained in this paper.The use of a series of a lower order inertia segment and pure time delay segment instead of an actual high-order accurate model can not only be practicable,but also be easily realized in an industrial process.Decreasing the priori knowledge about a model brings about a simple and convenient adjustment to an actual extrimum value control system.

关 键 词：仿真 模型简化 动态寻优 极值调节 

分 类 号：TP273.23[自动化与计算机技术—检测技术与自动化装置]