Department of Chemical Engineering, University of Sistan and Baluchestan, Zahedan, Iran.
Abstract
Distillation control is a challenging undertaking given the inherent nonlinearity of the process, severe coupling present for dual-composition control and the sensitivity of disturbances. Among various distillation operations, management of the high-purity column poses a difficult control situation due to a number of characteristics of these systems, including strong directionality, ill-conditioning and strongly nonlinear behaviour. In this paper, a diagonal PID controller is designed and analysed for a high-purity distillation column by computing the structured singular value μ introduced by Doyle (1982). For this purpose, a structured uncertainty model has been developed which describes the dynamics of the column for the entire operating range. The achievable manageable performance is also defined in terms of the H-norm of the weighted sensitivity function.
Razzaghi,K. and Shahraki,F. (2006). Robust control of a high-purity disttilation column using synthesis. Iranian Journal of Chemical Engineering (IJChE), 3(2), 20-32.
MLA
Razzaghi,K. , and Shahraki,F. . "Robust control of a high-purity disttilation column using synthesis", Iranian Journal of Chemical Engineering (IJChE), 3, 2, 2006, 20-32.
HARVARD
Razzaghi K., Shahraki F. (2006). 'Robust control of a high-purity disttilation column using synthesis', Iranian Journal of Chemical Engineering (IJChE), 3(2), pp. 20-32.
CHICAGO
K. Razzaghi and F. Shahraki, "Robust control of a high-purity disttilation column using synthesis," Iranian Journal of Chemical Engineering (IJChE), 3 2 (2006): 20-32,
VANCOUVER
Razzaghi K., Shahraki F. Robust control of a high-purity disttilation column using synthesis. IJChE, 2006; 3(2): 20-32.
