Title
On the passivity based control of irreversible processes: A port-Hamiltonian approach
Abstract
Irreversible port-Hamiltonian systems (IPHS) have recently been proposed for the modelling of irreversible thermodynamic systems. On the other hand, a classical result on the use of the second law of thermodynamics for the stabilization of irreversible processes is the celebrated thermodynamic availability function. These frameworks are combined to propose a class of Passivity Based Controller (PBC) for irreversible processes. An alternative formulation of the availability function in terms of internal energy is proposed. Using IPHS a matching-condition, which is interpreted in terms of energy-shaping, is derived and a specific solution that permits to assign a desired closed-loop structure and entropy rate is proposed. The approach can be compared with Interconnection and Damping Assignment-PBC, this method however leads in general to thermodynamically non-coherent closed-loop systems. In this paper a system theoretic approach is employed to derive a constructive method for the control design. The closed-loop system is in IPHS form, hence it can be identified with a thermodynamic system and the control parameters related with thermodynamic variables, such as the reaction rates in the case of chemical reactions. A generic non-linear non-isothermal continuous stirred tank reactor is used to illustrate the approach.
Year
DOI
Venue
2016
10.1016/j.automatica.2015.07.002
Automatica
Keywords
DocType
Volume
Passivity based control,Port-Hamiltonian systems,Irreversible thermodynamics,CSTR
Journal
64
Issue
ISSN
Citations 
1
0005-1098
1
PageRank 
References 
Authors
0.36
8
4
Name
Order
Citations
PageRank
Hector Ramirez Estay171.60
Yann Le Gorrec24311.22
Bernhard Maschke351883.42
Françoise Couenne4286.11