Nonsmooth h-infinity output regulation with application to a coal-fired boiler/turbine unit with actuator deadzone

Joseph Bentsman, Yury Orlov, Luis T. Aguilar

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish (US)
Title of host publication2013 American Control Conference, ACC 2013
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3894-3899
Number of pages6
ISBN (Print)9781479901777
DOIs
StatePublished - Jan 1 2013
Event2013 1st American Control Conference, ACC 2013 - Washington, DC, United States
Duration: Jun 17 2013Jun 19 2013

Publication series

NameProceedings of the American Control Conference
ISSN (Print)0743-1619

Other

Other2013 1st American Control Conference, ACC 2013
CountryUnited States
CityWashington, DC
Period6/17/136/19/13

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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