TY - GEN
T1 - Design properties that affect controller gain and available bandwidth of non-minimum phase membrane humidifiers
AU - Hall, John F.
AU - Mecklenborg, Christine A.
AU - Chen, Dongmei
PY - 2010
Y1 - 2010
N2 - The water vapor transfer across a membrane exhibits non-minimum phase behavior. This paper shows that the competing dynamics of heat and mass transfer cause the membrane humidifier to have a non-minimum phase zero. Even though the non-minimum phase zero exists in the disturbance-output loop, it will limit the feedback controller gain because the disturbance-output loop is coupled with the input-output loop. The membrane properties and heat transfer parameters affect the non-minimum phase zero location. The impact on available feedback control gain and system bandwidth is analyzed in relation to changes of the non-minimum phase zero during hardware design.
AB - The water vapor transfer across a membrane exhibits non-minimum phase behavior. This paper shows that the competing dynamics of heat and mass transfer cause the membrane humidifier to have a non-minimum phase zero. Even though the non-minimum phase zero exists in the disturbance-output loop, it will limit the feedback controller gain because the disturbance-output loop is coupled with the input-output loop. The membrane properties and heat transfer parameters affect the non-minimum phase zero location. The impact on available feedback control gain and system bandwidth is analyzed in relation to changes of the non-minimum phase zero during hardware design.
UR - https://www.scopus.com/pages/publications/79958209051
U2 - 10.1115/DSCC2010-4239
DO - 10.1115/DSCC2010-4239
M3 - Conference contribution
AN - SCOPUS:79958209051
SN - 9780791844175
T3 - ASME 2010 Dynamic Systems and Control Conference, DSCC2010
SP - 751
EP - 757
BT - ASME 2010 Dynamic Systems and Control Conference, DSCC2010
T2 - ASME 2010 Dynamic Systems and Control Conference, DSCC2010
Y2 - 12 September 2010 through 15 September 2010
ER -