Decentralized feedback structures of a vapor compression cycle system / Neera Jain in IEEE Transactions on control systems technology, Vol. 18 N° 1 (Janvier 2010)  

Public ISBD [article]  inIEEE Transactions on control systems technology > Vol. 18 N° 1 (Janvier 2010) . - pp. 185-193 Titre : Decentralized feedback structures of a vapor compression cycle system Type de document : texte imprimé Auteurs : Neera Jain, Auteur ; Bin Li, Auteur ; Michael Keir, Auteur Année de publication : 2011 Article en page(s) : pp. 185-193 Note générale : Génie Aérospatial Langues : Anglais (eng) Mots-clés : Air conditioning Decoupling Decentralized HVAC Multivariable control Refrigeration Index. décimale : 629.1 Résumé : In vapor compression cycle systems, it is desirable to effectively control the thermodynamic cycle by controlling the thermodynamic states of the refrigerant. By controlling the thermodynamic states with an inner loop, supervisory algorithms can manage critical functions and objectives such as maintaining superheat and maximizing the coefficient of performance. In practice, it is generally preferred to tune multiple single-input-single-output (SISO) control inner loops rather than a single multiple-input-multiple-output control inner loop. This paper presents a process by which a simplified feedback control structure, amenable to a decoupled SISO control loop design, may be identified. In particular, the many possible candidate input-output (I/O) pairs for decentralized control are sorted via a decoupling metric, called the relative gain array number. From a reduced set of promising candidate I/O pairs, engineering insight is applied to arrive at the most effective pairings successfully verified on an experimental air-conditioning-and-refrigeration test stand. DEWEY : 629.1 ISSN : 1063-6536 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4895680 [article] Decentralized feedback structures of a vapor compression cycle system [texte imprimé] / Neera Jain, Auteur ; Bin Li, Auteur ; Michael Keir, Auteur . - 2011 . - pp. 185-193. Génie Aérospatial Langues : Anglais (eng) in IEEE Transactions on control systems technology > Vol. 18 N° 1 (Janvier 2010) . - pp. 185-193 Mots-clés : Air conditioning Decoupling Decentralized HVAC Multivariable control Refrigeration Index. décimale : 629.1 Résumé : In vapor compression cycle systems, it is desirable to effectively control the thermodynamic cycle by controlling the thermodynamic states of the refrigerant. By controlling the thermodynamic states with an inner loop, supervisory algorithms can manage critical functions and objectives such as maintaining superheat and maximizing the coefficient of performance. In practice, it is generally preferred to tune multiple single-input-single-output (SISO) control inner loops rather than a single multiple-input-multiple-output control inner loop. This paper presents a process by which a simplified feedback control structure, amenable to a decoupled SISO control loop design, may be identified. In particular, the many possible candidate input-output (I/O) pairs for decentralized control are sorted via a decoupling metric, called the relative gain array number. From a reduced set of promising candidate I/O pairs, engineering insight is applied to arrive at the most effective pairings successfully verified on an experimental air-conditioning-and-refrigeration test stand. DEWEY : 629.1 ISSN : 1063-6536 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4895680

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