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数学总是和“精确”的概念联系在一起的,但自从查德(L.A.Zadeh)1965年关于模糊集合的论文[1]发表以来,模糊数学及模糊控制理论的应用越来越广泛。模糊控制方法的主要优点是它不需要对被控系统有十分精确的了解,而把注意力主要放在控制器的设计上。而且因为模糊控制的本质是非线性的,因此,对一些不易获取精确模型的系统或过程(如化工生产过程、高炉冶炼、医疗心理学、经济系统及管理工程系统)及非线性系统来说,采用模糊控制的方法可以得到用常规控制方法难以取得的效果。目前模糊控制在液压控制系统中应用的文献还较少,而实际上液压控制系统中许多问题都适合于模糊控制应用的场合。本文作者希望通过本文能起到一些推动作用。
Mathematics is always associated with the notion of “precision,” but since the publication of L.A. Zadeh’s 1965 paper on fuzzy sets [1], the application of fuzzy mathematics and fuzzy control theory has become more and more widespread. The main advantage of the fuzzy control approach is that it does not require a very precise knowledge of the controlled system and focuses primarily on the design of the controller. And because the nature of fuzzy control is non-linear, for some systems or processes that are not easy to obtain accurate models (such as chemical production process, blast furnace smelting, medical psychology, economic systems and management engineering systems) and nonlinear systems, The method of fuzzy control can obtain the effect which is difficult to obtain by the conventional control method. At present, fuzzy control in the hydraulic control system is still less literature, but in fact many of the hydraulic control system are suitable for fuzzy control applications. The author hopes that this article can play some role in promoting.