Robust Sliding Mode Control of Air Handling Unit for Energy Efficiency Enhancement

Awais Shah, Deqing Huang, Yixing Chen, Xin Kang and Na Qin
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Awais Shah: School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China
Deqing Huang: School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China
Yixing Chen: School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China
Xin Kang: School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China
Na Qin: School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China

Energies, 2017, vol. 10, issue 11, 1-21

Abstract: In order to achieve feasible and copacetic low energy consuming building, a robust and efficient air conditioning system is necessary. Since heating ventilation and air conditioning systems are nonlinear and temperature and humidity are coupled, application of conventional control is inappropriate. A multi-input multi-output nonlinear model is presented. The temperature and humidity of thermal zone are ascendance by the manipulation of the water and air flow rates. A sliding mode controller (SMC) is designed to ensure robust performance of air handling unit in the presence of uncertainties. A simple proportional-integral-derivative (PID) controller is used as a comparison template to highlight the efficiency of the proposed controller. To accomplish tracking targets, a variety of desired temperature and relative humidity commands (including ramp and combination with sequence of steps) are investigated. According to simulation results, SMC transcends the PID controller in terms of settling time, steady state and rise time, which makes SMC more energy efficient.

Keywords: sliding mode control; air handling unit, heating; ventilation and air conditioning (HVAC); multi-input muti-output (MIMO) (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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