Analytical Design for Parallel Cascade Control of Multiple Degrees of Freedom

Abstract:

A new parallel cascade control program of multiple degrees of freedom is proposed for chemical and industrial cascade processes. Firstly, the two degree of freedom IMC structure is adopted in the secondary control loop, and the set-point tracking and disturbance rejection are decoupled, therefore, the influence on performance of primary loop because of the coupling between the set-point tracking and disturbance rejection in the secondary loop is reduced. Then, based on a modified structure of the Smith predictor control, the primary loop realizes the decoupling control between set-point tracking and disturbance rejection, and simple and effective analytical method is adopted to devise the controllers. Finally, simulations example demonstrates the validity of the proposed control scheme.

• Periodical: Applied Mechanics and Materials (Volumes 44-47)
• Pages: 1417-1421
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.44-47.1417
• Online since: December 2010
• Authors: Cheng Qiang Yin, Jie Gao, Hong Tao Wang
• Keywords: Analytical Design, Internal Mode Control, Multiple Degrees of Freedom, Parallel Cascade Control

References

[1] Yongho Lee, Mikhail Skliar and Moonyong Lee, in: Analytical method of PID controller design for parallel cascade control, edited by W. Marquardt, volume 8 of Journal of Process Control, chapter, 16, Elsevier Ltd Publishers (2006).

DOI: 10.1016/j.jprocont.2006.03.002

[2] Yu C-C, in: Design of parallel cascade control for disturbance rejection, edited by A.T. Bell, volume 11 of AICHE J, chapter, 34, Elsevier Ltd Publishers (1988).

[3] A. Brambilla, D. Semino, in: Nonlinear filter in cascade control schemes, edited by S.D. Schwartz, Volume 12 of Ind. Eng. Chem. Res, chapter, 31, Academic Publishers(1992).

DOI: 10.1021/ie00012a010

[4] Pottmann M, Henson MA, in: A parallel control strategy abstracted from the baroreceptor reflex, edited by J. Bridgwater, volume 6 of Chem Eng Sci, chapter 51, Elsevier Science Ltd publishers (1996).

DOI: 10.1016/0009-2509(95)00338-x

[5] A. Seshagiri Rao, S. Seethaladevi, in: Enhancing the performance of parallel cascade control using Smith predictor, edited by R.R. Rhinehart, volume 2 of ISA Transactions, chapter, 48, Elsevier Ltd Publishwrs (2009).

DOI: 10.1016/j.isatra.2008.10.011

[6] Julio E. Normey-Rico, Eduardo.F. Camacho, in: Dead-time compensators A survey., edited by I.K. Craig, volume 4 of Control Engineering Practice, chapter, 16, Elsevier Ltd Publishers (2008).

DOI: 10.1016/j.conengprac.2007.05.006