Robust Design of Tilted Integral Derivative Controller for Non-integer Order Processes with Time Delay

Abstract

This paper proposes the design of a tilted integral derivative controller for non-integer order plus time delay processes. The gains of the TID controller are designed based on the frequency domain approach by specifying frequency domain parameters. The proposed method provides flexibility to design the controller based on application requirements by selecting frequency-domain parameters. To analyze the efficacy of the proposed methodology, step response characteristics and different performance indices are considered. The proposed method is carried out on various examples under variation of tilt component and compared with the various approaches available in the literature. Load disturbance analysis is performed on controllers designed by proposed, existing methods to analyze the sensitivity. Also, the offered performance is validated on a real-time temperature control setup, and its performance is compared with different techniques under various situations.

KEYWORDS:

• Non-integer order process
• TID controller
• Fractional order controller
• Frequency domain method
• Temperature control setup
• Load disturbance analysis

Acknowledgements

The authors would like to thank the referees, Editor-in-Chief and associate editors for comments, suggestions to enhance the quality of the work.

DISCLOSURE STATEMENT

No potential conflict of interest was reported by the author(s).

Additional information

Notes on contributors

Kurnam Gnaneshwar

Kurnam Gnaneshwar was born in Davvur, Sangareddy, India. He received the Bachelor of Technology degree in electrical and electronics engineering from JNTU University, Hyderabad, in 2016, Master of Technology degree in power and control from PDPM IIITDM at Jabalpur, India, in 2019. He is currently pursuing a Doctor of Philosophy degree from PDPM IIITDM Jabalpur, India. His research interest includes system identification and modelling, optimal process control, design of fractional order controllers, approximation techniques for fractional order processes, and optimization techniques. Email: [email protected]

P. K. Padhy

Prabin Kumar Padhy received a Bachelor of Engineering degree from IGIT Sarang, India. He received the Master of Technology degree from IIT BHU, Varanasi, India, in 2001, and the Doctor of Philosophy degree from IIT Guwahati, India, in 2007. Since 2007, he has been at IIITDM Jabalpur, India, where he is currently a professor in the Electronics and Communication Department. He has published more than 150 articles in prestigious international journals/conferences. He holds one patent. His primary research interests include automatic controller tuning, identification and control of processes, fractional order controller design and mobile robots.