DocumentCode :
174259
Title :
Adaptive super twisting sliding mode control of a HVAC system
Author :
Kianfar, Kaveh ; Saif, Mehrdad ; Izadi-Zamanabadi, Roozbeh
Author_Institution :
Sch. of Eng. Sci., Simon Fraser Univ., Burnaby, BC, Canada
fYear :
2014
fDate :
5-8 Oct. 2014
Firstpage :
3520
Lastpage :
3525
Abstract :
In this paper an adaptive super twisting sliding mode cascaded control strategy to control superheat temperature of an evaporator of Heating Ventilation Air Conditioning Systems(HVAC) is presented. Two internal loop and external loop of the cascaded controller are designed using sliding mode by utilizing feedback linearization method. By controlling superheat temperature, Tsh, in the external loop, and evaporating temperature of refrigerant, Te, in the internal loop, a better performance with robustness against parameter uncertainty is achieved. The value of superheat temperature is determined by using the estimated value of length of two phase flow of the refrigerant inside the evaporator. The performance of the proposed control strategy against disturbance and parameter uncertainties is illustrated through simulation in MATLAB/Simulink environment. It is shown that in comparison with super-twisting method, the proposed adaptive super twisting method improves the performance of system by reduction of undesirable chattering in the response of system.
Keywords :
HVAC; adaptive control; mathematics computing; refrigerants; temperature control; two-phase flow; variable structure systems; HVAC system; MATLAB; Simulink environment; adaptive super twisting method; adaptive super twisting sliding mode cascaded control strategy; adaptive super twisting sliding mode control; cascaded controller; control superheat temperature; evaporator; feedback linearization method; heating ventilation air conditioning systems; parameter uncertainties; parameter uncertainty; refrigerant; superheat temperature control; two phase flow; Liquids; Observers; Refrigerants; Sliding mode control; Temperature measurement; Temperature sensors;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Systems, Man and Cybernetics (SMC), 2014 IEEE International Conference on
Conference_Location :
San Diego, CA
Type :
conf
DOI :
10.1109/SMC.2014.6974475
Filename :
6974475
Link To Document :
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