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在石油化学工业、动力工厂、纤维造纸工业、电镀工业、食品工业、金属工业、卫生工业等部门,几乎所有化学工业过程都有非线性过程的控制,特别是最为典型的难以控制的PH非线性过程。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控制复杂,因此,非线性控制系统,从理论上研究的多,而实际生产中使用却很少。
In the petrochemical industry, power plant, fiber and paper industry, electroplating industry, food industry, metal industry, health industry and other departments, almost all chemical industry processes have nonlinear process control, especially the most typical difficult to control PH nonlinear process. 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 in engineering gradually realized. However, the quality of nonlinear control system depends largely on the correct understanding of the process mathematical model, and the realization of nonlinear control law is far more complicated than conventional control. Therefore, the nonlinear control system, which is theoretically studied Many, but the actual production is rarely used.