基于模糊推理的模型参考自适应内模控制的研究

电厂的主汽温是大惯性、大滞后的对象，并且动态特性随机组负荷变化而变化，运
行过程中扰动多。本文采用模型参考自适应控制的思想，将模糊控制方法和内模控制方法结合在一起，提出了一种模型参考模糊自适应内模控制方法：采用相消法设计内模控制器，用参考模型理想输出和实际对象输出之差e 及其变化率△e 在线模糊调节控制器中滤波参数。本文方法综合了模糊控制，内模控制和自适应控制的优点，增强了系统的鲁棒性，针对电厂热工过程系统的仿真研究结果证明了这一方法的有效性。
关键词：模型参考，内模控制，模糊控制，过热汽温
ABSTRACT：The main steam temperature transfer function of the power plant is the large inertia large delaying and more disturbances. Moreover, the dynamic changed with the load. In this paper the author propose a model reference fuzzy self-adopting IM controlling method based on the combination of the fuzzy and IM controlling theory and design the IM controller using the relative arithmetic; in order to get optimic steadiness the filter parameters can be tuned through calculate the error-e between the computation outle and the test result as well as the changing rate. The simulated result shows the method lead to the optimizing dynamic characteristic for the plant process controlling.
KEY WORDS： model reference, IMC, fuzzy controlling, steam temperature of superheater