کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4764582 | 1423736 | 2018 | 11 صفحه PDF | دانلود رایگان |
- Construction of a regionless explicit model predictive controller (REMPC).
- Experimentally tested REMPC on a control of the pH level in the continuous stirred-tank reactor.
- Application of the MPC-based reference governor concept to control the pH.
Optimal control of a CSTR represents a challenging task. The proposed paper discusses two issues. The first one addresses control of pH in a chemical vessel, where the reaction between sodium hydroxide and acetic acid occurs. The objective here is to improve control performance of a well tuned PI controller. It will be shown that this can be achieved by introducing a reference governor scheme. The second problem, elaborated in this paper, is the implementation of the reference governor paradigm. Concretely, we aim to design a fast and cheap MPC-based feedback controller. To achieve these goals, we exploit the region-less explicit technique, which efficiently reduces memory footprint issues of standard explicit MPC schemes. Such MPC-based reference governor was employed to control pH in the chemical vessel. Its control performance is compared with conventional PI controller. Finally, comparison of implementation requirements of region-less and region-based explicit techniques is investigated.
Journal: Computers & Chemical Engineering - Volume 108, 4 January 2018, Pages 289-299