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PLS is widely used in the quality control process system, but it has poor capability in some strong local nonlinear system for fault diagnosis. To enhance the monitoring ability of such type fault, a novel statistical model based on global plus local projection to latent structures (GPLPLS) is proposed. Firstly, the characteristics and nature of quality-related global and local partial least squares...
This paper addresses an anti-windup analytical design method based on the optimal compensator, by adding a parameter α to the sub-controllers to optimize the compensator with a design procedure formulated as a constrained optimization problem, which depend on new particle swarm optimization (NPSO) algorithm, applicable to SISO and MIMO systems with time delay/coupling plants. The proposed anti-windup...
The relationships between period operation and Molecular Weight Distribution (MWD) of polymeric products were investigated firstly aiming at a semi-batch free-radical homo-polymerization process. Then, using the duty-cycle of the periodic feeding as a control variable, a novel method of controlling the quality of polymer was proposed. The objective function of maximum possible monomer conversion (X...
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