TY - GEN
T1 - Nonsmooth h-infinity output regulation with application to a coal-fired boiler/turbine unit with actuator deadzone
AU - Bentsman, Joseph
AU - Orlov, Yury
AU - Aguilar, Luis T.
PY - 2013
Y1 - 2013
N2 - Actuator nonidealities -backlash, deadzone, and others- severely degrade system performance. For example, in boiler/turbine units, the turbine valve position actuation for manipulating steam flow rate is characterized by a small mismatch between the turbine valve command and the actual valve position, producing a small steady state regulation error in the plant outputs. The standard linear H∞- controller designed to provide zero steady state error regulation drives this error to zero, producing the undesirable oscillations in the control signals and the plant outputs. The present paper develops a nonsmooth H∞-regulator theory addressing this problem and applies this theory to the experimentally validated boiler/turbine model with actuator deadzone. Simulation results showing a considerable performance improvement are given.
AB - Actuator nonidealities -backlash, deadzone, and others- severely degrade system performance. For example, in boiler/turbine units, the turbine valve position actuation for manipulating steam flow rate is characterized by a small mismatch between the turbine valve command and the actual valve position, producing a small steady state regulation error in the plant outputs. The standard linear H∞- controller designed to provide zero steady state error regulation drives this error to zero, producing the undesirable oscillations in the control signals and the plant outputs. The present paper develops a nonsmooth H∞-regulator theory addressing this problem and applies this theory to the experimentally validated boiler/turbine model with actuator deadzone. Simulation results showing a considerable performance improvement are given.
UR - http://www.scopus.com/inward/record.url?scp=84883497415&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84883497415&partnerID=8YFLogxK
U2 - 10.1109/acc.2013.6580434
DO - 10.1109/acc.2013.6580434
M3 - Conference contribution
AN - SCOPUS:84883497415
SN - 9781479901777
T3 - Proceedings of the American Control Conference
SP - 3894
EP - 3899
BT - 2013 American Control Conference, ACC 2013
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2013 1st American Control Conference, ACC 2013
Y2 - 17 June 2013 through 19 June 2013
ER -