Process safeness index: Its definition and use in economic model predictive control to ensure process operational safety
| Autor: | Fahad Albalawi, Anas Alanqar, Panagiotis D. Christofides, Helen Durand |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0209 industrial biotechnology
Engineering Index (economics) business.industry Process (engineering) System safety 02 engineering and technology Reliability engineering Constraint (information theory) 020901 industrial engineering & automation 020401 chemical engineering Control theory Control system Process control Metric (unit) 0204 chemical engineering business |
| Zdroj: | ACC |
| DOI: | 10.23919/acc.2017.7963629 |
| Popis: | In this work, we propose initial steps in the first systems safety approach that coordinates the control and safety systems through a common metric (a Safeness Index) and develop a controller formulation that incorporates this index. Specifically, this work presents an economic model predictive control (EMPC) scheme that utilizes a Safeness Index function as a hard constraint to define a safe region of operation termed the safety zone. Under the proposed EMPC, the closed-loop state of a nonlinear process can be guaranteed to enter the safety zone in finite time while maximizing the process economics. The proposed design is demonstrated using a chemical process example. |
| Databáze: | OpenAIRE |
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