کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5005187 | 1369012 | 2011 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Sensor fault detection and isolation via high-gain observers: Application to a double-pipe heat exchanger
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
کنترل و سیستم های مهندسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Sensor fault detection and isolation via high-gain observers: Application to a double-pipe heat exchanger Sensor fault detection and isolation via high-gain observers: Application to a double-pipe heat exchanger](/preview/png/5005187.png)
چکیده انگلیسی
This paper deals with fault detection and isolation (FDI) in sensors applied to a concentric-pipe counter-flow heat exchanger. The proposed FDI is based on the analytical redundancy implementing nonlinear high-gain observers which are used to generate residuals when a sensor fault is presented (as software sensors). By evaluating the generated residual, it is possible to switch between the sensor and the observer when a failure is detected. Experiments in a heat exchanger pilot validate the effectiveness of the approach. The FDI technique is easy to implement allowing the industries to have an excellent alternative tool to keep their heat transfer process under supervision. The main contribution of this work is based on a dynamic model with heat transfer coefficients which depend on temperature and flow used to estimate the output temperatures of a heat exchanger. This model provides a satisfactory approximation of the states of the heat exchanger in order to allow its implementation in a FDI system used to perform supervision tasks.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: ISA Transactions - Volume 50, Issue 3, July 2011, Pages 480-486
Journal: ISA Transactions - Volume 50, Issue 3, July 2011, Pages 480-486
نویسندگان
R.F. Escobar, C.M. Astorga-Zaragoza, A.C. Téllez-Anguiano, D. Juárez-Romero, J.A. Hernández, G.V. Guerrero-RamÃrez,