Reduced-Order Modeling and Control of Heat-Integrated Air Separation Column Based on Nonlinear Wave Theory
被引:1
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作者:
Cong, Lin
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机构:
China Univ Petr East China, Coll Control Sci & Engn, Qingdao 266580, Peoples R ChinaChina Univ Petr East China, Coll Control Sci & Engn, Qingdao 266580, Peoples R China
Cong, Lin
[1
]
Li, Xu
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机构:
China Univ Petr East China, Coll Control Sci & Engn, Qingdao 266580, Peoples R ChinaChina Univ Petr East China, Coll Control Sci & Engn, Qingdao 266580, Peoples R China
Li, Xu
[1
]
机构:
[1] China Univ Petr East China, Coll Control Sci & Engn, Qingdao 266580, Peoples R China
heat integration;
air separation;
nonlinear modeling;
control design;
PRESSURE-SWING DISTILLATION;
DYNAMICS;
DESIGN;
UNIT;
D O I:
10.3390/pr11102918
中图分类号:
TQ [化学工业];
学科分类号:
0817 ;
摘要:
The process of low-temperature air separation consumes a significant amount of energy. Internal heat-integrated distillation technology has considerable energy-saving potential. Therefore, the combination of low-temperature air separation and heat-integrated distillation technology has led to the development of a heat-integrated air separation column (HIASC). Due to the heat integration and the inherent complexity of air separation, the modeling and control of this process poses significant challenges. This paper first introduces the nonlinear wave theory into the HIASC, derives the expression for the velocity of the concentration distribution curve movement and the curve describing function, and then establishes a nonlinear wave model. Compared to the traditional mechanical models, this approach greatly reduces the number of differential equations and variables while ensuring an accurate description of the system characteristics. Subsequently, based on the wave model, a model predictive control scheme is designed for the HIASC. This scheme is compared with two conventional control schemes: PID and a general model control. The simulation results demonstrate that MPC outperforms the other control schemes from the response curves and performance metrics.
机构:
Nanjing Tech Univ, Sch Phys & Math Sci, Nanjing 211816, Peoples R ChinaNanjing Tech Univ, Sch Phys & Math Sci, Nanjing 211816, Peoples R China
Lu Weiyu
Huang Guoping
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机构:
Nanjing Univ Aeronaut & Astronaut, Coll Energy & Power Engn, Nanjing 210016, Peoples R ChinaNanjing Tech Univ, Sch Phys & Math Sci, Nanjing 211816, Peoples R China
Huang Guoping
Wang Jinchun
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机构:
AECC Commercial Aircraft Engine Co LTD, Res & Design Ctr, Nanjing, Peoples R ChinaNanjing Tech Univ, Sch Phys & Math Sci, Nanjing 211816, Peoples R China
机构:
Qufu Normal Univ, Sch Engn, Rizhao 276826, Peoples R China
Rizhao Huilian Zhongchuang Inst Intelligent Techn, Intelligent Control Lab, Rizhao 276826, Peoples R ChinaQufu Normal Univ, Sch Engn, Rizhao 276826, Peoples R China
Zhang, Zhengqiang
Wang, Qiufeng
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h-index: 0
机构:
Qufu Normal Univ, Sch Engn, Rizhao 276826, Peoples R ChinaQufu Normal Univ, Sch Engn, Rizhao 276826, Peoples R China
Wang, Qiufeng
Ge, Shuzhi Sam
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机构:
Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117576, Singapore
Qingdao Univ, Inst Future, Qingdao 266071, Peoples R ChinaQufu Normal Univ, Sch Engn, Rizhao 276826, Peoples R China
Ge, Shuzhi Sam
Zhang, Yanjun
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Acad Math & Syst Sci, Inst Syst Sci, Key Lab Syst & Control, Beijing 100190, Peoples R ChinaQufu Normal Univ, Sch Engn, Rizhao 276826, Peoples R China