New tuning and identification methods for unstable first order plus dead-time processes based on pseudoderivative feedback control

Paraskevopoulos, PN; Pasgianos, GD; Arvanitis, KG

dc.contributor.author	Paraskevopoulos, PN	en
dc.contributor.author	Pasgianos, GD	en
dc.contributor.author	Arvanitis, KG	en
dc.date.accessioned	2014-03-01T01:21:08Z
dc.date.available	2014-03-01T01:21:08Z
dc.date.issued	2004	en
dc.identifier.issn	1063-6536	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/16077
dc.subject	Dead-time processes	en
dc.subject	Identification	en
dc.subject	Process control	en
dc.subject	Pseudoderivative feedback	en
dc.subject	Unstable processes	en
dc.subject.classification	Automation & Control Systems	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.other	Bioreactors	en
dc.subject.other	Closed loop control systems	en
dc.subject.other	Identification (control systems)	en
dc.subject.other	Process control	en
dc.subject.other	Robustness (control systems)	en
dc.subject.other	System stability	en
dc.subject.other	Three term control systems	en
dc.subject.other	Uncertain systems	en
dc.subject.other	Pseudoderivative feedback control	en
dc.subject.other	Unstable first order plus dead-time processes	en
dc.subject.other	Unstable processes	en
dc.subject.other	Feedback control	en
dc.title	New tuning and identification methods for unstable first order plus dead-time processes based on pseudoderivative feedback control	en
heal.type	journalArticle	en
heal.identifier.primary	10.1109/TCST.2004.824334	en
heal.identifier.secondary	http://dx.doi.org/10.1109/TCST.2004.824334	en
heal.language	English	en
heal.publicationDate	2004	en
heal.abstract	The use of pseudoderivative feedback (PDF) in the control and identification of unstable first order plus dead-time (UFOPDT) processes is investigated. Several new methods for tuning the PDF feedback controller are presented. In contrast to known tuning rules for conventional proportional integral derivative (PID) controllers, which result in excessive overshoot in the closed-loop response, the. proposed control structure and tuning methods ensure a smooth response to set-point changes, fast attenuation of step-load disturbances, and satisfactory robustness against parametric uncertainty. Moreover, two simple methods for identifying the UFOPDT process parameters, based on this controller structure, are proposed in this paper. Both methods rely on a single experiment on a closed-loop system with a step change in the set point of a PDF controller. They are very accurate, as well as simpler and less sensitive than existing identification methods. Finally, an application of the proposed identification and tuning methods to, an open-loop unstable bioreactor with hard input constraints and significant measurement delay is presented.	en
heal.publisher	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC	en
heal.journalName	IEEE Transactions on Control Systems Technology	en
dc.identifier.doi	10.1109/TCST.2004.824334	en
dc.identifier.isi	ISI:000221165200013	en
dc.identifier.volume	12	en
dc.identifier.issue	3	en
dc.identifier.spage	455	en
dc.identifier.epage	464	en