Title :
Nonlinear superheat and capacity control of a refrigeration plant
Author :
Rasmussen, Henrik
Author_Institution :
Dept. of Electron. Syst., Aalborg Univ., Aalborg
Abstract :
This paper proposes a novel method for superheat and capacity control of refrigeration systems. The main 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 the design of the nonlinear controller. The proposed method is validated by experimental results.
Keywords :
compressors; heat transfer; nonlinear control systems; refrigerants; refrigeration; nonlinear controller; nonlinear model; nonlinear superheat-capacity control; refrigeration plant; refrigeration systems; Control systems; Heat pumps; Heat transfer; Nonlinear control systems; Refrigerants; Refrigeration; Temperature control; Temperature sensors; Valves; Water heating;
Conference_Titel :
Control Applications, 2008. CCA 2008. IEEE International Conference on
Conference_Location :
San Antonio, TX
Print_ISBN :
978-1-4244-2222-7
Electronic_ISBN :
978-1-4244-2223-4
DOI :
10.1109/CCA.2008.4629577
