کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4764685 | 1423740 | 2017 | 50 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Process operational safety using model predictive control based on a process Safeness Index
ترجمه فارسی عنوان
ایمنی عملیاتی عملیات با استفاده از مدل پیشگویی مدل براساس شاخص امنیت صفر
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کلمات کلیدی
مدل پیش بینی اقتصادی مدل اقتصادی، کنترل فرایند، ایمنی فرآیند، شاخص امنیت، عملیات فرآیند،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
It has been repeatedly suggested that the common cause-and-effect approach to evaluating process safety has deficiencies that could be addressed by a systems engineering perspective. A systems approach should consider safety as a system-wide property and thus would be required to integrate all aspects of the process involved with monitoring or manipulating the process dynamics, including the control, alarm, and emergency shut-down systems while operating them independently for redundancy. 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 design, the closed-loop state of a nonlinear process is guaranteed to enter the safety zone in finite time in the presence of uncertainty while maximizing a stage cost that reflects the economics of the process. Closed-loop stability is established for a nonlinear process under the proposed implementation strategy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Chemical Engineering - Volume 104, 2 September 2017, Pages 76-88
Journal: Computers & Chemical Engineering - Volume 104, 2 September 2017, Pages 76-88
نویسندگان
Fahad Albalawi, Helen Durand, Panagiotis D. Christofides,