Chinese Journal of Chemical Engineering ›› 2012, Vol. 20 ›› Issue (6): 1094-1101.
郝玉春1, 李强1, 谭文1, 李东海2
HAO Yuchun1, LI Qiang1, TAN Wen1, LI Donghai2
摘要: An expansion procedure to design partially decentralized controllers via model predictive control is proposed in this paper.Partially decentralized control is a control structure that lies between a fully decentralized structure and a fully centralized one,and has the advantage of achieving comparable performance as a fully centralized controller but with simpler structure.The proposed method follows the expansion method proposed in a previous paper where internal model control (IMC) was used to design controllers for non-square subsystems.The method requires computing the pseudo-inverse of a non-square matrix via pseudo-inverse factors.Instead,the proposed method uses dynamic matrix control (DMC) to design PID controllers for non-square subsystems without using additional factors.The effectiveness of the proposed method is demonstrated on several chemical examples.Simulation results show that the proposed method is simple and can achieve better performance.