Control design for an automotive turbine rankine cycle system based on nonlinear state estimation
Résumé
This paper investigates the problem of
control design for an Organic Rankine Cycle (ORC)
for Waste Heat Recovering (WHR). Based on a mov-
ing boundary heat exchanger model derived from
energy and mass conservation principles, an implicit
model, control-oriented and experimentally validated,
is presented. Then, a first controller which consists on
a gain-scheduled PID combined to a dynamic feedfor-
ward is implemented on the pump speed to maintain
the superheat close to the set point value. A second
controller is a nonlinear feedback law which allows
to adjust the evaporating pressure to time-varying
demand with a good accuracy. To implement these
two controllers, an observer is designed to achieve
the state estimation from pressure measurement, typ-
ically available in WHR applications.
The observer and the control approach are validated
on realistic operating conditions.
Domaines
Automatique / Robotique
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per14 IEEE CDC paper.pdf (696.32 Ko)
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per14 IEEE CDC slides.pdf (506.03 Ko)
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Origine : Fichiers produits par l'(les) auteur(s)
Origine : Fichiers produits par l'(les) auteur(s)
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