Energy efficient control of a refrigeration plant

Henrik Rasmussen, Lars F. S. Larsen

Research output: Contribution to journalConference article in JournalResearchpeer-review

Abstract

This paper proposes a novel method for superheat and capacity control of refrigeration systems. The new idea is to control the superheat by the compressor speed and capacity by the refrigerant flow. A new low order nonlinear model of the evaporator is developed and used in a backstepping design of of a nonlinear controller. The stability of the proposed method is validated theoretically by Lyapunov analysis and experimental results shows the performance of the system for a wide range of operating points. The method is compared to a conventional method based on a thermostatic superheat controller and the methods are evaluated with respect to energy efficiency.
Original languageEnglish
JournalI E E E Conference on Control Applications. Proceedings
Volume2009
Pages (from-to)1495-1500
Number of pages6
ISSN1085-1992
DOIs
Publication statusPublished - 2009
Event2009 IEEE Multi-conference on Systems and Control - St. Petersburg, Russian Federation
Duration: 8 Jul 200910 Jul 2009

Conference

Conference2009 IEEE Multi-conference on Systems and Control
CountryRussian Federation
CitySt. Petersburg
Period08/07/200910/07/2009

Cite this

Rasmussen, Henrik ; Larsen, Lars F. S. / Energy efficient control of a refrigeration plant. In: I E E E Conference on Control Applications. Proceedings. 2009 ; Vol. 2009. pp. 1495-1500.
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title = "Energy efficient control of a refrigeration plant",
abstract = "This paper proposes a novel method for superheat and capacity control of refrigeration systems. The new idea is to control the superheat by the compressor speed and capacity by the refrigerant flow. A new low order nonlinear model of the evaporator is developed and used in a backstepping design of of a nonlinear controller. The stability of the proposed method is validated theoretically by Lyapunov analysis and experimental results shows the performance of the system for a wide range of operating points. The method is compared to a conventional method based on a thermostatic superheat controller and the methods are evaluated with respect to energy efficiency.",
author = "Henrik Rasmussen and Larsen, {Lars F. S.}",
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Energy efficient control of a refrigeration plant. / Rasmussen, Henrik; Larsen, Lars F. S.

In: I E E E Conference on Control Applications. Proceedings, Vol. 2009, 2009, p. 1495-1500.

Research output: Contribution to journalConference article in JournalResearchpeer-review

TY - GEN

T1 - Energy efficient control of a refrigeration plant

AU - Rasmussen, Henrik

AU - Larsen, Lars F. S.

N1 - Titel: IEEE International Conference on Control Applications, 2009. CCA '09 Oversat titel: Oversat undertitel: Forlag: IEEE ISBN (Trykt): 978-1-4244-4602-5

PY - 2009

Y1 - 2009

N2 - This paper proposes a novel method for superheat and capacity control of refrigeration systems. The new idea is to control the superheat by the compressor speed and capacity by the refrigerant flow. A new low order nonlinear model of the evaporator is developed and used in a backstepping design of of a nonlinear controller. The stability of the proposed method is validated theoretically by Lyapunov analysis and experimental results shows the performance of the system for a wide range of operating points. The method is compared to a conventional method based on a thermostatic superheat controller and the methods are evaluated with respect to energy efficiency.

AB - This paper proposes a novel method for superheat and capacity control of refrigeration systems. The new idea is to control the superheat by the compressor speed and capacity by the refrigerant flow. A new low order nonlinear model of the evaporator is developed and used in a backstepping design of of a nonlinear controller. The stability of the proposed method is validated theoretically by Lyapunov analysis and experimental results shows the performance of the system for a wide range of operating points. The method is compared to a conventional method based on a thermostatic superheat controller and the methods are evaluated with respect to energy efficiency.

U2 - 10.1109/CCA.2009.5281156

DO - 10.1109/CCA.2009.5281156

M3 - Conference article in Journal

VL - 2009

SP - 1495

EP - 1500

JO - I E E E International Conference on Control Applications. Proceedings

JF - I E E E International Conference on Control Applications. Proceedings

SN - 1085-1992

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