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《Journal of Chemical Engineering of Chinese Universities》 2008-05
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Data Reconciliation Based on Large Scale Rigorous Model with Equation Oriented Method

ZHANG Zheng-jiang1, ZHU Ling-yu1,2, SHAO Zhi-jiang1, CHEN Xi1, QIAN Ji-xin1 (1. State Key Laboratory of Industrial Control Technology, Institute of Industrial Control, Zhejiang University, Hangzhou 310027, China; 2. College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310014, China)  
Reliable process model and process data are required in the real-time optimization. As a result of random and possible gross errors existing in the measured process data, the real-time optimization is not efficient and accurate. According to the characteristics of process system, data reconciliation based on large scale rigorous model was proposed in this paper. The membership functions of gross error and random error were constructed and used to detect the gross error. When there is plenty of measurement information, the reconciliation is available for the process measurement of flow rate, components, pressure, etc. The proposed method for data reconciliation and gross error detection was used in the ethylene separation process system. If only random errors exist in the process data, the reconciled data satisfy the process model. If both random and gross errors exist in the process data, the gross errors can be detected accurately, and the process model is also satisfied after data reconciliation. The effectiveness of the method proposed was demonstrated by the simulation calculation.
【Fund】: 国家重点基础研究发展计划项目(2002CB312200);; 国家863高技术研究发展计划项目(2007AA04Z192);; 国家科技支撑计划项目(2007BAF22B05)
【CateGory Index】: TQ015.9
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【References】
Chinese Journal Full-text Database 2 Hits
1 ZHU Ling-yu1,2,CHEN Zhi-qiang1,CHEN Xi1,SHAO Zhi-jiang1,QIAN Ji-xin1 (1. State Key Lab of Industrial Control Technology,Institute of Industrial Control,Zhejiang University,Hangzhou 310027,China; 2.State Key Lab. Breeding Base of Green Chemistry Synthesis Technology,College of Chemical Engineering and Materials Science,Zhejiang University of Technology,Hangzhou 310014,China);Homotopy Based Backtracking Method for Large-scale Process Simulations with Load Variation[J];Journal of Chemical Engineering of Chinese Universities;2009-04
2 Dong Tianxiang~(1*,2) and Rong Gang~3 (1.College of Computer Science and Technology,Zhejiang University,Hangzhou,310027,Zhejiang,China;2.ZheJiang Supcon Software CO.,LTD.,Hangzhou,310053,Zhejiang,China;3.State Key Laboratory of Industrial Control Technology,Zhejiang University,Hangzhou,310027,Zhejiang,China);Software infrastructure of manufacturing execution system for process industries[J];Computers and Applied Chemistry;2010-01
【Co-references】
Chinese Journal Full-text Database 4 Hits
1 SHAO Zhi-jiang, JIANG Ai-peng, CHEN Xi, FANG Xue-yi, ZHENG Xiao-qing, GENG Da-zao, QIAN Ji-xin (National Laboratory of Industrial Control Technology, Institute of Industrial Control, Zhejiang University, Hangzhou 310027, China);Intelligent Operation Optimization of Distillation Column for Debutanization in Ethylene Process[J];Journal of Chemical Engineering of Chinese Universities;2006-06
2 FENG Yiping,RONG Gang,ZHANG Qiran(State Key Laboratory of Industrial Control Technology, Institute of Advanced Process Control,Zhejiang University, Hangzhou 310027,Zhejiang,China);Multi-resolution material flow modeling for petrochemical industry[J];Journal of Chemical Industry and Engineering(China);2008-03
3 LIU Hui~(1,2) MA Zhi-Yi~(1,2) SHAO Wei-Zhong~(1,2+) 1(Institute of Software,School of Electronics Engineering and Computer Science,Peking University,Beijing 100871,China) 2(Key Laboratory of High Confidence Software Technologies of the Ministry of Education,Peking University,Beijing 100871,China);Progress of Research on Metamodeling[J];Journal of Software;2008-06
4 LU Xu-dong, WAN Jian-cheng(School of Computer Science and Technology, Shandong University, Jinan 250061, China);Extended Object Model for UI-Modeling[J];Journal of Chinese Computer Systems;2006-05
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