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Experimental study of Predictive Control strategies for optimal operation of Organic Rankine Cycle systems
Hernandez Naranjo, Jairo Andres; Desideri, Adriano; Ionescu, Clara et al.
2015In Experimental study of Predictive Control strategies for optimal operation of Organic Rankine Cycle systems
 

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Abstract :
[en] In this paper the performance of Model Predictive Control (MPC) and PID based strategies to optimally recover waste heat using Organic Rankine Cycle (ORC) technology is investigated. First the relationship between the evaporating temperature and the output power is experimentally evaluated, concluding that for some given heat source conditions there exists an optimal evaporating temperature which maximizes the energy production. Three different control strategies MPC and PID based are developed in order not only to maximize energy production but to ensure safety conditions in the machine. For the case of the MPC, the Extended Prediction Self-Adaptive Control (EPSAC) algorithm is considered in this study as it uses input/output models for prediction, avoiding the need of state estimators, making of it a suitable tool for industrial applications. The experimental results obtained on a 11kWe pilot plant show that the constrained EPSAC-MPC outperforms PID based strategies, as it allows to accurately regulate the evaporating temperature with a lower control effort while keeping the superheating in a safer operating range.
Disciplines :
Energy
Author, co-author :
Hernandez Naranjo, Jairo Andres ;  Université de Liège > Département d'aérospatiale et mécanique > Systèmes énergétiques
Desideri, Adriano ;  Université de Liège > Département d'aérospatiale et mécanique > Systèmes énergétiques
Ionescu, Clara;  Ghent University > SYSTEMS > Post-doc
Quoilin, Sylvain  ;  Université de Liège > Département d'aérospatiale et mécanique > Systèmes énergétiques
Lemort, Vincent  ;  Université de Liège > Département d'aérospatiale et mécanique > Systèmes énergétiques
De Keyser, Robin;  Ghent University > SYSTEMS > Professor
Language :
English
Title :
Experimental study of Predictive Control strategies for optimal operation of Organic Rankine Cycle systems
Publication date :
17 July 2015
Event name :
European Control Conference (ECC)
Event place :
Linz, Austria
Event date :
from 15-07-2015 to 17-07-2015
Main work title :
Experimental study of Predictive Control strategies for optimal operation of Organic Rankine Cycle systems
Pages :
2259-2264
Name of the research project :
The Next Generation Organic Rankine Cycles
Funders :
IWT SBO-110006
Available on ORBi :
since 10 June 2016

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