## Abstract Most modern chemical plants are complex networks of multiple interconnected nonlinear process units, often with multiple recycle and by‐pass streams and energy integration. Interactions between process units often lead to plant‐wide operability problems (i.e., difficulties in process co
Interaction analysis for decentralized control based on dissipativity
✍ Scribed by Shichao Xu; Jie Bao
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 2008
- Tongue
- English
- Weight
- 183 KB
- Volume
- 3
- Category
- Article
- ISSN
- 1932-2135
- DOI
- 10.1002/apj.139
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✦ Synopsis
Abstract
A new interaction analysis for decentralized control is presented in this paper. The proposed method uses (Q, S, R)‐dissipativity and passivity to identify the effect of loop interactions on the dynamic control performance achievable by multiloop controllers (in terms of open‐loop bandwidth of the plant and multiloop controller). The frequency‐dependent upper bounds of the controller gain are also formulated to provide more insights into the impacts of interactions on decentralized control. A case study on the interaction analysis of distillation column is used to illustrate the effectiveness of the proposed approach. Copyright © 2008 Curtin University of Technology and John Wiley & Sons, Ltd.
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