Diagnosing batch processes with insufficient fault data: generation of pseudo batches
SCIE
SCOPUS
- Title
- Diagnosing batch processes with insufficient fault data: generation of pseudo batches
- Authors
- Cho, HW; Kim, KJ
- Date Issued
- 2005-07-15
- Publisher
- TAYLOR & FRANCIS LTD
- Abstract
- To ensure the safety of a batch process and the quality of its final product, one needs to quickly identify an assignable cause of a fault. Cho and Kim (2003) recently proposed a diagnosis method for batch processes using Fisher's Discriminant Analysis (FDA), which showed a satisfactory performance on industrial batch processes. However, their method (or any other method based on empirical models) has a major limitation when the fault batches available for building an empirical diagnosis model are insufficient. This is a highly critical issue in practice because sufficient fault batches are likely to be unavailable. In this work, we propose a method to handle the insufficiency of the fault data in diagnosing batch processes. The basic idea is to generate so-called pseudo batches from known fault batches and utilise them as part of the diagnosis model data. The performance of the proposed method is demonstrated using a real data set from a PVC batch process. The proposed method is shown to be capable of handling the data insufficiency problem successfully, and yields a reliable diagnosis performance.
- Keywords
- batch process; fault diagnosis; data insufficiency problem; pseudo batch; Fisher' s discriminant analysis; prediction of future observations; PARTIAL LEAST-SQUARES
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/24532
- DOI
- 10.1080/00207540500066937
- ISSN
- 0020-7543
- Article Type
- Article
- Citation
- INTERNATIONAL JOURNAL OF PRODUCTION RESEARCH, vol. 43, no. 14, page. 2997 - 3009, 2005-07-15
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