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Model-based Predictive Control for Spatially-distributed Systems Using Dimensional Reduction Models 被引量:3
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作者 Meng-Ling Wang Ning Li Shao-Yuan Li 《International Journal of Automation and computing》 EI 2011年第1期1-7,共7页
In this paper, a low-dimensional multiple-input and multiple-output (MIMO) model predictive control (MPC) configuration is presented for partial differential equation (PDE) unknown spatially-distributed systems ... In this paper, a low-dimensional multiple-input and multiple-output (MIMO) model predictive control (MPC) configuration is presented for partial differential equation (PDE) unknown spatially-distributed systems (SDSs). First, the dimension reduction with principal component analysis (PCA) is used to transform the high-dimensional spatio-temporal data into a low-dimensional time domain. The MPC strategy is proposed based on the online correction low-dimensional models, where the state of the system at a previous time is used to correct the output of low-dimensional models. Sufficient conditions for closed-loop stability are presented and proven. Simulations demonstrate the accuracy and efficiency of the proposed methodologies. 展开更多
关键词 spatially-distributed system principal component analysis (PCA) time/space separation dimension reduction model predictive control (MPC).
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Online correction MPC strategy for spatially-distributed system based on PCA method
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作者 Mengling WANG Ning LI Shaoyuan LI 《控制理论与应用(英文版)》 EI 2012年第1期71-76,共6页
In this paper, the online correction model predictive control (MPC) strategy is presented for partial dif- ferential equation (PDE) unknown spatially-distributed systems (SDSs). The low-dimensional MIMO models a... In this paper, the online correction model predictive control (MPC) strategy is presented for partial dif- ferential equation (PDE) unknown spatially-distributed systems (SDSs). The low-dimensional MIMO models are obtained using principal component analysis (PCA) method from the high-dimensional spatio-temporal data. Though the linear low- dimensional model is easy for control design, it is a linear approximation for nonlinear SDSs. Thus, the MPC strategy is proposed based on the online correction low-dimensional models, where the state at a previous time is used to correct the output of low-dimensional models and the spatial output is correct by the average deviation of the historical data. The simulations demonstrated show the accuracy and efficiency of the proposed methodologies. 展开更多
关键词 spatially-distributed system Principal component analysis (PCA) Model predictive control Time/spacereconstruction Time/space projection
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