Design And Development Of DCS Based On Advanced Control Protocol

In the actual activities, there are many complex control systems which are multi-variable, intense coupling and without accuracy math model. It is difficult to reach expected performances by common PID control ways. However, Advanced Control Protocol has been perfected by the progress of Modern Control theory and many years actual experience. And ACP is especially used to Modern Industry which can't be developed an accuracy math model.Advanced DCS is applied in the control system, and the non-decoupling DMC arithmetic technology is applied in the DCS .The arithmetic is based on the step response of non-variable model which can be optimized online step by step according to the performance target and the feedback correction. The paper develops a program of the DMC arithmetic offline by the MATLAB language and develops a program to control actual control objects by SCX language. And the parameters of MPC system model are calculated through observing the actual control performances. The results show that the control system is stability, robust and has a good performance at anti-jamming.DCS 300-JX of ZheDa Supcon Co., is applied in the project, through which is successful to developing a friendly control picture, beautiful process picture, accuracy database and table by system design . It can alarm not only by color but by sound online which can improve safe efficiency obviously.The study of the project is remarkable for enhancing the rate of end products, decreasing prime costs, improving the productive. And it is a future direction for DCS binding ACP. The project also provides a necessary way for students to understand modern control theory and ACP theory, through which a good performance can be observed but can't be got from classical control theory.