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In this paper, we propose a robust H∞/L1 control system for a high purity distillation column. The original nonlinear model of the column is of high order and it includes parametric uncertainty. A reduced-order linearized model of the distillation column is used to design a 2-DoF multi-objective H∞/L1 controller which ensures robust stability of the closed loop system and fulfillment of certain design...
The concentration of dissolved of wastewater treatment process directly affect organic removal efficiency and activated sludge. Dissolved oxygen aeration device is through the control of aeration device. In practical application, such as controller was due to the convert accuracy of D/A and A/D ,as well as the truncation errors due to temperature change aging or failure caused by components of electronic...
This paper presents a method of combining model predictive control (MPC) with explicitly defined stability criteria for improved robust performance. The stability criteria is fundamental in its basis and can be applied universally to a process of any size. The stability criteria is independent variables based and can be used with linear or non-linear process; when used with linear process it imparts...
In this paper, the robust design of the multi-loop PI controller for multivariable processes in the presence of the multiplicative input uncertainty is proposed. The paper deals with two major steps: as a first step, the analytical tuning rules of the multi-loop PI controller are derived from the basis of the generalized IMC-PID approach. Then, in the second step, the robust analysis is utilized for...
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