TY - JOUR
T1 - Anti-windup Disturbance Feedback Control
T2 - Practical Design with Robustness
AU - Kawai, Fukiko
AU - Vinther, Kasper
AU - Andersen, Palle
AU - Bendtsen, Jan Dimon
PY - 2018/9
Y1 - 2018/9
N2 - This paper presents a practical design method of robust disturbance feedback control (DFC) along with an application to industrial refrigeration systems. DFC is a controller configuration in which an existing controller is augmented with an additional loop. The design method for DFC is proposed in two steps; firstly, the robust DFC without saturation is designed by a linear matrix inequality (LMI) approach, and then LMI techniques are used again for designing an anti-windup compensator to accommodate actuator saturation. The proposed method is compared to a conventional design on a water chiller system, both in simulation and through practical experiments. The test results indicate that both robustness and performance can be improved in the presence of model uncertainties, and the proposed method can avoid wind-up phenomena when the control inputs are saturated.
AB - This paper presents a practical design method of robust disturbance feedback control (DFC) along with an application to industrial refrigeration systems. DFC is a controller configuration in which an existing controller is augmented with an additional loop. The design method for DFC is proposed in two steps; firstly, the robust DFC without saturation is designed by a linear matrix inequality (LMI) approach, and then LMI techniques are used again for designing an anti-windup compensator to accommodate actuator saturation. The proposed method is compared to a conventional design on a water chiller system, both in simulation and through practical experiments. The test results indicate that both robustness and performance can be improved in the presence of model uncertainties, and the proposed method can avoid wind-up phenomena when the control inputs are saturated.
KW - Anti-windup
KW - Disturbance rejection
KW - Linear matrix inequalities
KW - Refrigeration systems
KW - Robust control
UR - http://www.scopus.com/inward/record.url?scp=85050354575&partnerID=8YFLogxK
U2 - 10.1016/j.jprocont.2018.06.003
DO - 10.1016/j.jprocont.2018.06.003
M3 - Journal article
SN - 0959-1524
VL - 69
SP - 30
EP - 43
JO - Journal of Process Control
JF - Journal of Process Control
ER -