DocumentCode :
2673606
Title :
Nonlinear state observer design of Simulated Moving Bed process
Author :
Ling Li ; De-Cheng Yuan ; Yuan-Wei Jing
Author_Institution :
Dept. of Inf. Eng., Shenyang Inst. of Chem. Technol., Shenyang, China
fYear :
2012
fDate :
23-25 May 2012
Firstpage :
3162
Lastpage :
3165
Abstract :
Simulated Moving Bed (SMB) process belongs to hybrid nonlinear system. Because the hybrid variables of simulated moving bed process are difficult to measure, the closed-loop control of this process has been difficult to solve. The state observer problem is very complex because the physical SMB model exhibits the infinite state dimension of distributed-parameter systems with switching initial conditions and cyclic boundary conditions. This paper proposes a solution that is based on the balance diffusion model designing nonlinear state observer reconstruction concentration variables and theoretically proving the stability of the observation. The simulation study shows that the export concentration of simulated moving bed system with nonlinear observer is expected to reach. It has some help to further design control scheme.
Keywords :
closed loop systems; control system synthesis; nonlinear control systems; observers; process control; stability; time-varying systems; balance diffusion model; closed loop control; cyclic boundary conditions; distributed parameter systems; export concentration; hybrid nonlinear system; hybrid variables; infinite state dimension; nonlinear state observer design; nonlinear state observer reconstruction concentration variables; physical SMB model; simulated moving bed process; stability; switching initial conditions; Benchmark testing; Mathematical model; Observers; Process control; Stability analysis; Switches; Balance Diffusion Model; Hybrid System; Nonlinear State Observation; Simulated Moving Bed; True Moving Bed;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Control and Decision Conference (CCDC), 2012 24th Chinese
Conference_Location :
Taiyuan
Print_ISBN :
978-1-4577-2073-4
Type :
conf
DOI :
10.1109/CCDC.2012.6244499
Filename :
6244499
Link To Document :
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