Optimal H2 IMC-PID controller with set-point weighting for time-delayed unstable processes / Anggi A. Nasution in Industrial & engineering chemistry research, Vol. 50 N° 8 (Avril 2011)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 50 N° 8 (Avril 2011) . - pp. 4567–4578 Titre : Optimal H2 IMC-PID controller with set-point weighting for time-delayed unstable processes Type de document : texte imprimé Auteurs : Anggi A. Nasution, Auteur ; Jyh-Cheng Jeng, Auteur ; Hsiao-Ping Huang, Auteur Année de publication : 2011 Article en page(s) : pp. 4567–4578 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : optimal H2 Unstable processes Résumé : This paper presents the synthesis of optimal H2 proportional−integral−derivative (PID) controller from internal model control (IMC) design for unstable processes with single right-half-plane (RHP) pole and time delay. The H2 optimal closed-loop transfer functions, for unit set-point and disturbance inputs, are first derived to synthesize the ideal controller. This ideal controller is then used to obtain PID parameters by the approach of Maclaurin series approximation. The proposed PID tuning is compared with those resulting from some of the recently developed desired closed-loop transfer functions in the literature in terms of performance and robustness both for set-point tracking and input disturbance rejection. Moreover, to improve the performance of set-point tracking, this paper also presents the two degrees of freedom controller design, which can be further derived as a set-point weighted PID controller. The tuning formulas for these weighting parameters on proportional and derivative modes are thus developed. Simulation examples are provided to demonstrate the effectiveness of the proposed tuning method DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie1021688 [article] Optimal H2 IMC-PID controller with set-point weighting for time-delayed unstable processes [texte imprimé] / Anggi A. Nasution, Auteur ; Jyh-Cheng Jeng, Auteur ; Hsiao-Ping Huang, Auteur . - 2011 . - pp. 4567–4578. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 8 (Avril 2011) . - pp. 4567–4578 Mots-clés : optimal H2 Unstable processes Résumé : This paper presents the synthesis of optimal H2 proportional−integral−derivative (PID) controller from internal model control (IMC) design for unstable processes with single right-half-plane (RHP) pole and time delay. The H2 optimal closed-loop transfer functions, for unit set-point and disturbance inputs, are first derived to synthesize the ideal controller. This ideal controller is then used to obtain PID parameters by the approach of Maclaurin series approximation. The proposed PID tuning is compared with those resulting from some of the recently developed desired closed-loop transfer functions in the literature in terms of performance and robustness both for set-point tracking and input disturbance rejection. Moreover, to improve the performance of set-point tracking, this paper also presents the two degrees of freedom controller design, which can be further derived as a set-point weighted PID controller. The tuning formulas for these weighting parameters on proportional and derivative modes are thus developed. Simulation examples are provided to demonstrate the effectiveness of the proposed tuning method DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie1021688

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