Between-phase transition analysis for phase-based quality prediction
In this paper, the quality-concerned between-phase transition patterns are analyzed for quality prediction and interpretation in multiphase batch processes. From the between-phase viewpoint, the quality-related phase behaviors are decomposed and two subspaces are separated. In common subspace, the underlying quality-relevant variation stays invariable compared with its neighboring phases, showing the common contribution to quality. The other part changes with the alternation of phases and has the different influences on quality interpretation, termed specific subspace here. Based on subspace separation, quality-related process information is captured across phases and between-phase transition regions are distinguished from steady phases. Steady phase and transition models are developed respectively for online quality prediction. The proposed method gives an interesting insight into the phase behaviors and between-phase transitions for quality prediction. The feasibility and performance of the proposed method are illustrated with a typical multiphase batch process.
multiphase batch processes between-phase transition subspace separation quality interpretation and prediction.
Chunhui Zhao Youxian Sun Furong Gao
State Key Laboratory of Industrial Control Technology, Department of Control Science and Engineering State Key Laboratory of Industrial Control Technology, Department of Control Science and Engineering
国际会议
The 24th Chinese Control and Decision Conference (第24届中国控制与决策学术年会 2012 CCDC)
太原
英文
1619-1624
2012-05-23（万方平台首次上网日期，不代表论文的发表时间）