Design of decentralized proportional–integral proportional–retarded controllers in discrete-time domain for two-input two-output processes

Author:

Duman Mammadov Ayşe1ORCID,Dincel Emre1,Söylemez Mehmet Turan1

Affiliation:

1. Control and Automation Engineering Department, Istanbul Technical University, Turkey

Abstract

In this paper, a decentralized proportional–integral proportional–retarded (PI-PR) controller design method is proposed for two-input two-output (TITO) systems in discrete-time domain. The well-known dominant pole assignment (DPA) approach is used as the basis of the proposed approach. The controller design starts with the decoupling of a given TITO system into two sub-systems and continues with the design of proportional–integral–retarded (PIR) controllers for each sub-system, respectively. The feasible discrete PIR controller parameter set is obtained through the Nyquist stability criterion by considering the desired closed-loop performance specifications. The obtained PIR controllers are then implemented using a PI-PR control structure to avoid poor performance of the closed-loop system (CLS) transient response, which can be caused by the controller zeros. Moreover, a case study is presented to show the performance of the PI-PR controller in a simulation environment. It is shown that the proposed control structure provides a satisfactory performance when compared with the other proportional–integral–derivative (PID) control methods from the literature.

Publisher

SAGE Publications

Subject

Instrumentation

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. İki Girişli İki Çıkışlı Sistemlerde Ayrık Zamanda PI-PR2 Kontrolör Tasarımı;Fırat Üniversitesi Mühendislik Bilimleri Dergisi;2023-09-01

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