Tuning of PID controllers for pure integrating and unstable time delay systems
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Hemalatha Sarisa
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Padma Sree R
Abstract
Designing a Proportional-Integral-Derivative (PID) controller for pure integrator with time delay and unstable first order plus time delay systems by extending the method proposed by Mikhalevich et al. (Mikhalevich SS, Baydali SA, Manenti F. Development of a tunable method for PID controllers to achieve the desired phase margin. J Process Control 2015;25:28–34). In this paper, the same method is applied for pure integrating systems with time delay and achieved good response for servo problem. Later the method is applied to unstable systems by stabilizing the unstable system in inner loop with proportional controller and tuning a PID controller for the stabilized system in the outer loop. The servo and regulatory performance of the designed controllers is compared with the recently reported literature methods for various transfer function models.
Acknowledgments
Professor Padmasree, Family.
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Research ethics: The research followed ethical guidelines approved by institution to ensure safety and confidentiality. Steps were taken to minimize any potential risks or discomfort.
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Informed consent: Not applicable.
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Author contributions: Author 1 took the lead in designing the study and drafting the manuscript and contributed to literature review, ensuring the study’s completion and manuscript submission. Author 2 played a significant role in data collection, interpretation, and manuscript revision.
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Use of Large Language Models, AI and Machine Learning Tools: None declared.
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Conflict of interest: None declared.
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Research funding: None declared.
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Data availability: The data is transparent which can be accessible and reproducible.
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