PID-type controller tuning for unstable first order plus dead time processes based on gain and phase margin specifications

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	2014-03-01T01:24:51Z
dc.date.available	2014-03-01T01:24:51Z
dc.date.issued	2006	en
dc.identifier.issn	1063-6536	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17471
dc.subject	Controller tuning	en
dc.subject	Dead-time processes	en
dc.subject	Gain and phase margins	en
dc.subject	Process control	en
dc.subject	Proportional-integral-differential (PID) controllers	en
dc.subject	Unstable processes	en
dc.subject.classification	Automation & Control Systems	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.other	Algorithms	en
dc.subject.other	Approximation theory	en
dc.subject.other	Iterative methods	en
dc.subject.other	Nyquist diagrams	en
dc.subject.other	Process control	en
dc.subject.other	Tuning	en
dc.subject.other	Controller tuning	en
dc.subject.other	Proportional integral (PI) controllers	en
dc.subject.other	Proportional-integral differential controllers	en
dc.subject.other	Unstable first-order plus dead-time (UFOPDT) processes	en
dc.subject.other	Control systems	en
dc.title	PID-type controller tuning for unstable first order plus dead time processes based on gain and phase margin specifications	en
heal.type	journalArticle	en
heal.identifier.primary	10.1109/TCST.2006.876913	en
heal.identifier.secondary	http://dx.doi.org/10.1109/TCST.2006.876913	en
heal.language	English	en
heal.publicationDate	2006	en
heal.abstract	The control of unstable first-order plus dead-time (UFOPDT) processes using proportional-integral (PI) and proportional-integral-differential (PID) type controllers is investigated in this brief. New tuning rules based on the exact satisfaction of gain and phase margin specifications are proposed. The tuning rules are given in the form of iterative algorithms, as well as in the form of accurate, analytical approximations. Moreover, several specific functions, related to the crossover frequencies of the Nyquist plot and to the feasible design specifications for a given process, are derived. These functions, which are particularly useful for the general design of PI- and PID-type controllers for UFOPDT processes are accurately approximated, in order to simplify the tuning procedure. With the proposed approximations, the tuning rules reported in this brief require relatively small computational effort and are particularly useful for online applications. © 2006 IEEE.	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.2006.876913	en
dc.identifier.isi	ISI:000239709600013	en
dc.identifier.volume	14	en
dc.identifier.issue	5	en
dc.identifier.spage	926	en
dc.identifier.epage	936	en