کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1180746 1491540 2014 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Inter-batch-evolution-traced process monitoring based on inter-batch mode division for multiphase batch processes
ترجمه فارسی عنوان
نظارت فرآیند براساس تقسیم بین سطحی برای فرایندهای دسته ای چند مرحلهای براساس تقسیم حالت چندبعدی انجام می شود
کلمات کلیدی
تکامل بین گروهی، نظارت بر فرآیند، پنجره کشویی، فرآیند دسته چند ضلعی
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی


• The intra-batch evolution is tracked and modeled for online process monitoring.
• Different process modes are separated in order along batch direction.
• The part of variations with significant increases is separated from the other.
• Four subspaces instead of two are supervised to trace and monitor the evolution.
• The application to injection molding start-up process illustrates the feasibility.

The multiplicity of operation phases is an inherent nature of many batch processes and each phase exhibits significantly different behaviors. Besides process variation along the time direction within each batch, process variation along the batch direction, called inter-batch evolution here, widely exists in batch processes. Inter-batch evolution has caused different operation modes along the batch direction, which may not be well captured by a single model. In this work, the inter-batch evolution is tracked, based on which multiple modes are separated and modeled for online process monitoring along the batch direction. First, a batch cycle is divided into multiple phases. Then sliding windows are constructed for analysis of the inter-batch evolution within each phase. Based on the comparison between reference windows and sliding windows, different process modes are separated in order along the batch direction. Four monitoring subspaces which cover different types of relative variations are used in monitoring. During online monitoring, these different variations are then supervised respectively to trace the inter-batch evolution. The application to a typical multiphase batch process with inter-batch evolution, injection molding start-up process, illustrates the feasibility and performance of the proposed algorithm.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemometrics and Intelligent Laboratory Systems - Volume 138, 15 November 2014, Pages 178–192
نویسندگان
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