A soft constraint adjustment method based on multi-parametric programming in steady-state target calculation for model predictive control

被引:0
|
作者
Lin Xiaozhong [1 ]
Xie Lei [1 ]
Su Hongye [1 ]
机构
[1] Zhejiang Univ, Inst Cyber Syst & Control, State Key Lab Ind Control Technol, Hangzhou 310027, Zhejiang, Peoples R China
关键词
multi-parametric linear programming; steady-state target calculation; soft constraint; OPTIMIZATION;
D O I
暂无
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
In order to track the result of local economic optimization, steady-state target calculation for Model Predictive Control should be implemented. When steady-state target calculation for Model Predictive Control becomes infeasible, soft constraints adjustment is involved to make it feasible. The traditional method does not consider that different soft constraints adjustment will affect final economic objective achievement, It is not guaranteed to achieve the optimal economic objective through soft constrains adjustment by choosing different weighted coefficient according to experience , a multi-parametric programming algorithm is proposed to divide the variation range of coefficients of the soft constraint into different regions. It can determine the most suitable soft constraints adjustment to achieve optimal economic objective by comparing economic objective value in the different region. Simulation results of typical control model of a heavy oil fractionator proposed by Royal Dutch/Shell Group showed the effectivity of the proposed algorithm.
引用
收藏
页码:4046 / 4051
页数:6
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