TY - JOUR
T1 - Distributed Design of Sensor Fault-Tolerant Control for Preserving Comfortable Indoor Conditions in Buildings ⁎
AU - Papadopoulos, Panayiotis M.
AU - Reppa, Vasso
AU - Polycarpou, Marios M.
AU - Panayiotou, Christos G.
PY - 2018
Y1 - 2018
N2 - This paper proposes a distributed fault-tolerant control (FTC) scheme that can preserve thermal comfort conditions in a multi-zone building despite the presences of faulty temperature sensors. The proposed methodology exploits the networked structure of a Heating, Ventilation and Air-Conditioning (HVAC) system controlling the temperature of physically interconnected zones in order to design a distributed FTC control scheme comprised of a set of dedicated control agents. For each control agent, two adaptive bounds on the tracking error are derived, taking into account: (i) healthy sensor measurements and (ii) a single sensor fault. Each adaptive bound constitutes a condition that allows the selection of an appropriate local control gain such that the thermal comfort conditions are satisfied. By utilizing the decisions of a sensor fault diagnosis scheme, the controller gain can be reconfigured to compensate the effects of sensor faults. The proposed methodology is illustrated by simulating a sensor fault in a 3-zone HVAC system.
AB - This paper proposes a distributed fault-tolerant control (FTC) scheme that can preserve thermal comfort conditions in a multi-zone building despite the presences of faulty temperature sensors. The proposed methodology exploits the networked structure of a Heating, Ventilation and Air-Conditioning (HVAC) system controlling the temperature of physically interconnected zones in order to design a distributed FTC control scheme comprised of a set of dedicated control agents. For each control agent, two adaptive bounds on the tracking error are derived, taking into account: (i) healthy sensor measurements and (ii) a single sensor fault. Each adaptive bound constitutes a condition that allows the selection of an appropriate local control gain such that the thermal comfort conditions are satisfied. By utilizing the decisions of a sensor fault diagnosis scheme, the controller gain can be reconfigured to compensate the effects of sensor faults. The proposed methodology is illustrated by simulating a sensor fault in a 3-zone HVAC system.
KW - building automation
KW - distributed control
KW - fault tolerance
KW - sensor faults
UR - http://www.scopus.com/inward/record.url?scp=85054599973&partnerID=8YFLogxK
U2 - 10.1016/j.ifacol.2018.09.650
DO - 10.1016/j.ifacol.2018.09.650
M3 - Article
AN - SCOPUS:85054599973
SN - 1474-6670
VL - 51
SP - 688
EP - 695
JO - IFAC-PapersOnLine
JF - IFAC-PapersOnLine
IS - 24
ER -