Unified design method of time delayed PI controller for first order plus dead-time process models with different dead-time to time constant ratio

• Autorzy: Pathiran Arun R. , Muniraj R. , Iruthayarajan M. Willjuice , Prabhu S. R. Boselin , Jarin T.

Identyfikatory

DOI

10.24425/acs.2021.137427

• Języki publikacji: EN

Abstrakty

EN

The time delay element present in the PI controller brings dead-time compensation capability and shows improved performance for dead-time processes. However, design of robust time delayed PI controller needs much responsiveness for uncertainty in dead-time processes. Hence in this paper, robustness of time delayed PI controller has been analyzed for First Order plus Dead-Time (FOPDT) process model. The process having dead-time greater than three times of time constant is very sensitive to dead-time variation. A first order filter is introduced to ensure robustness. Furthermore, integral time constant of time delayed PI controller is modified to attain better regulatory performance for the lag-dominant processes. The FOPDT process models are classified into dead-time/lag dominated on the basis of dead-time to time constant ratio. A unified tuning method is developed for processes with a number of dead-time to time constant ratio. Several simulation examples and experimental evaluation are exhibited to show the efficiency of the proposed unified tuning technique. The applicability to the process models other than FOPDT such as high-order, integrating, right half plane zero systems are also demonstrated via simulation examples.

Słowa kluczowe

EN

PI controller; time delayed PI controller; dead-time compensation

• Wydawca: Polish Academy of Sciences, Committee of Automatic Control and Robotics
• Czasopismo: Archives of Control Sciences
• Rocznik: 2021
• Tom: Vol. 31, No. 2
• Strony: 447--476
• Opis fizyczny: Bibliogr. 24 poz., rys., tab., wzory

Twórcy

autor

Pathiran Arun R.

• Department of Electrical and Electronics Technology, Ethiopian Technical University, Addis Ababa, Ethiopia

autor

Muniraj R.

• Department of Electrical and Electronics Engineering, P.S.R. Engineering College, Sivakasi, Virudhunagar District, Tamilnadu, India

autor

Iruthayarajan M. Willjuice

• Department of Electrical and Electronics Engineering, National Engineering College, Kovilpatti, India

autor

Prabhu S. R. Boselin

• Department of Electronics and Communication Engineering, Surya Engineering College, Mettukadai, India

autor

Jarin T.

• Department of Electrical and Electronics Engineering, Jyothi Engineering College, Thrissur, India

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).