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随着生产和自动控制理论的发展,非线性系统的控制已成为一个重要的研究领域。电子计算机的应用,使非线性控制系统在工程上的应用逐步得到实现,但由于非线性控制系统的调节质量,在相当大程度上依赖于过程数学模型的正确掌握,而且非线性控制规律的实现也远比常规仪表控制复杂。因此,非线性控制系统,从理论上研究的多,而在实际生产中使用却很少。F、G欣斯基指出:“若使强酸,强碱的中和反应,把PH值控制在6～8中性区内是特别困难的”。据此,为了探索非线性过程的特点和控制规律,我们在PH实验装置
With the development of production and automatic control theory, the control of nonlinear systems has become an important area of research. The application of electronic computer makes the application of nonlinear control system gradually realized. However, due to the quality of nonlinear control system, it depends to a great extent on the correct mastery of process mathematical model and the realization of nonlinear control law It is also far more complicated than conventional instrument control. Therefore, the nonlinear control system, from the theoretical study of more, but in actual production is rarely used. F, G Hinskey pointed out: “If the strong acid, alkali and neutralization reaction, the PH value in the 6 to 8 neutral zone is particularly difficult.” Accordingly, in order to explore the characteristics of nonlinear processes and control laws, we are in the PH experimental device