Fuzzy Controllers Instead of Classical PIDs in HVAC Equipment: Dusting Off a Well-Known Technology and Today’s Implementation for Better Energy Efficiency and User Comfort

Cutting-edge building energy management systems (BEMS) interact with heating, ventilation, air conditioning (HVAC) systems, which generally account for much of the consumption. Major attention is focused on BEMS themselves, barring on-field equipment. In HVAC equipment, sub-optimal controller settings may lead to losses and user discomfort, instance, due oscillations temperature fan speeds. The way solve this problem could be replace classical PID controllers an alternative concept that does not require tuning works optimally a wide range parameters. This paper compares fuzzy logic (FLC) standard model-based simulation system in Simulink different conditions using real measurement data. end result implementation developed methods newly designed universal control board handling units (AHU). proposed FLC achieves better integral quality indicators (IAE, ISE, ITAE, ITSE) by at least 27.4%, smaller supply variation; daily mean square error (MSE) was reduced average 36%, leads immediately occupant comfort presumed reduction Compared untuned PID, consumption 12.7% lower; will ensure improved economy from lowest level, paves interoperability high-level schemes.