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A Novel System Decomposition Method Based on Pearson Correlation and Graph Theory
Jin, Jing1; Zhang, Shu1; Li LJ(李丽娟)1; Zou T(邹涛)2
Department工业控制网络与系统研究室
Conference NameIEEE 7th Data Driven Control and Learning Systems Conference (DDCLS)
Conference DateMAY 25-27, 2018
Conference PlaceEnshi, PEOPLES R CHINA
Author of SourceChinese Assoc Automat, Tech Comm Data Driven Control, Learning & Optimizat,, Hubei Univ Nationalities, IEEE Beijing Sect, IEEE Ind Electron Soc, CAA, IEEE, Beijing Jiaotong Univ, IES, ACTA Automatica Sinica, IEEE/CAA Journal of Automatica Sinica
Source PublicationPROCEEDINGS OF 2018 IEEE 7TH DATA DRIVEN CONTROL AND LEARNING SYSTEMS CONFERENCE (DDCLS)
PublisherIEEE
Publication PlaceNEW YORK
2018
Pages819-824
Indexed ByEI ; CPCI(ISTP)
EI Accession number20184806139135
WOS IDWOS:000450645900148
Contribution Rank2
ISBN978-1-5386-2618-4
KeywordSystem decomposition Pearson correlation graph theory
AbstractWith the increasing attention of networked control, system decomposition and distributed models show significant importance in the implementation of model-based control strategy. In the traditional system decomposition methods based on graph theory, the weight on each edge of the graph is set by state space equation to reflect the mutual influence of variables in the system. But in the actual industrial process, the acquisition of state space equation is more difficult. In this paper, a system decomposition method based on Pearson correlation coefficient and graph theory is proposed to avoid the use of state space equations. At first, a directed graph is established to represent the actual process of the industrial system and the weights on corresponding edges in the directed graph are set by the Pearson correlation coefficients between two nodes connected by these edges. Then the directed graph is decomposed into several initial subgraphs and the subgraphs will be fused according to a certain rule. Here, a fusion index is defined to select the optimal fusion results in each fusion process. After each fusion process, the termination condition is required to determine whether to continue the next round of fusion process. When the fusion process ends, the subsets obtained at this time are the results of the system decomposition. When the system decomposition is finished, the online subsystems modeling will be carried out by RPLS algorithm. Finally, the proposed algorithm is applied in the Tennessee Eastman process to verify the validity.
Language英语
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Document Type会议论文
Identifierhttp://ir.sia.cn/handle/173321/23656
Collection工业控制网络与系统研究室
Corresponding AuthorLi LJ(李丽娟)
Affiliation1.College of Electrical Engineering and Control Science, Nanjing Tech University, Nanjing, 211816, China
2.Industrial Control Networks and Systems Department, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China
Recommended Citation
GB/T 7714
Jin, Jing,Zhang, Shu,Li LJ,et al. A Novel System Decomposition Method Based on Pearson Correlation and Graph Theory[C]//Chinese Assoc Automat, Tech Comm Data Driven Control, Learning & Optimizat,, Hubei Univ Nationalities, IEEE Beijing Sect, IEEE Ind Electron Soc, CAA, IEEE, Beijing Jiaotong Univ, IES, ACTA Automatica Sinica, IEEE/CAA Journal of Automatica Sinica. NEW YORK:IEEE,2018:819-824.
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