近年来，内模控制在工业过程中不仅得到广泛的应用，而且其理论研究也取得了很大的进展。内模控制（Internal Model Control, IMC）是一种简单、实用的先进控制算法，是研究其它基于模型控制策略的理论基础。本文介绍了内模控制的基本原理及内模控制器的设计方法、特性及应用，基于过程控制实验，研究了内模控制在水箱水位控制系统中的设计方案，首先对被控对象进行模型辨识着手，然后建立IMC结构模型，讨论算法优化性能指标中的参数选择，最后利用MATLAB对控制系统进行了仿真。试验结果表明，所采用的设计方法合理可行，体现了内模控制的实用性和控制效果的优越性，对于内模控制在其它领域的应用具有一定的参考价值。
关键词：内模控制，模型辨识，系统仿真
Abstract
In recent years, the Internal model control (IMC) in the industrial process has not only been widely used, but its theoretical research has made great progress. Internal model control (IMC) is a simple and practical advanced process control algorithm, and it’s the theory basis of other strategies based on model principles of IMC and its design method, characteristic and application of controller are presented, and it was applied in the process control experimental equipment, has studied the Internal model control (IMC) in the water tank water monitor system's design proposal, First carries on the model identification to the controlled plant to begin, then establishes the IMC structural model, in the discussion algorithm optimization performance index parameter choice, finally has carried on the simulation using MATLAB to the control system. The test result indicated that uses design method reasonable feasible, has manifested the cast control usability and the control effect superiority, has certain reference value regarding the cast control in other domain's application.
Key words：internal model control，model identification，system simulation
