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Lookup NU author(s): Dr Ming Tham
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Control problems have been experienced with FOPTD-based PID tuning methods when the normalized dead-time of the process model is small. One proposed solution has been to treat the FOPTD system model, with small normalized dead-time, as an Integral Plus Dead Time (IPDT) process for controller tuning purposes. There has been very little work though on investigating the transition point, as a normalized dead-time value, when the designer should choose to use either FOPTD-based or IPDT-based PID control design methods. This contribution considers finding the transition point(s) for the gain and phase margin design method. For a range of values of normalized dead-time the performance of the IPDT-based PI controller will be compared with that of the FOPTD-based PI controller for both set-point response and load disturbance rejection.
Author(s): Jones RW, Tham MT
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: SICE Annual Conference 2004
Year of Conference: 2004
Pages: 1139-1143
Publisher: IEEE
URL: http://dx.doi.org/10.1109/SICE.2004.191838
DOI: 10.1109/SICE.2004.191838
Notes: Article no. WPI-9-1
Library holdings: Search Newcastle University Library for this item
ISBN: 4907764227
