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福建炼油化工有限公司炼油厂常压塔的基本控制系统采用美国ＨＯＮＥＹＷＥＬＬ公司的ＴＤＣ３０００分散控制系统。介绍了在ＴＤＣ３０００的ＡＭ模块中，用ＣＬ语言编程实现了常压塔多变量智能控制系统。常压塔多变量智能控制系统采用递阶控制结构，分３层：即协调层、执行层和控制层。协调层由多变量智能控制器构成，负责协调执行中各智能控制器的动作。执行层由各侧线的智能控制器构成，其输出作为控制层中常规ＰＩＤ控制器的设定值。实际运行结果表明，控制系统可以长期稳定运行，提高了侧线温度的控制精度，能够克服加热炉出口温度和原油性质变化的扰动，从而为实现以提高轻油收率为目标的质量卡边控制创造了条件，将为企业带来可观的经济效益。
Fujian Refining & Chemical Co., Ltd. refinery atmospheric tower of the basic control system using the United States HONEYWELL TDC3000 distributed control system. Introduced in the TDC3000 the AM module, using CL language programming to achieve a pressure tower multivariate intelligent control system. Atmospheric pressure tower multi-variable intelligent control system using hierarchical control structure, divided into three layers: the coordination layer, the executive layer and control layer. The coordination layer consists of a multivariable intelligent controller that coordinates the actions of each intelligent controller in execution. The execution layer is made up of intelligent controllers on each side of the line and its output is used as a setting for a conventional PID controller in the control plane. The actual operation results show that the control system can operate steadily for a long time and improve the control precision of the sideline temperature and can overcome the variation of the exit temperature of the heating furnace and the nature of the crude oil so as to create the quality card edge control with the goal of increasing the yield of light oil The conditions for the enterprise will bring considerable economic benefits.