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ISSN Approved Journal No: 2456-3315 | Impact factor: 8.14 | ESTD Year: 2016
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Impact Factor : 8.14

Issue per Year : 12

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Paper Title: Tuning of PID Controller for FOPDT and SOPDT Systems
Authors Name: Megha Gautam , Manisha Bhandari
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IJRTI_183451
Published Paper Id: IJRTI2208014
Published In: Volume 7 Issue 8, August-2022
DOI:
Abstract: Due to the ease implementation, the simple mechanism and robustness of PID controllers has made it the most used controllers in the process industries. There are numerous tuning techniques are available for tuning of PID controllers. In this research work, in the first part basically a first-order plus dead time (FOPDT) model is designed and consequently tuning of PID controller is done by using the Ziegler -Nichols method and in second part, a second-order plus dead time (SOPDT) model is developed and tunning of PID controller is done by using the root locus method. In Root-Locus method poles are allocated in such a way that model poles are cancelled out by controller zeros, but exact cancellation is not possible. Since the controller cancels out the model poles which are nearest to its exact value, hence an approximation is done to cancel the model poles and to determine damping ratio and the time constant. In this technique, the higher order system (oscillatory and non-oscillatory) with delayed input is reduced into a second order system and then tuning is done. Here in this work, the damping ratio and the time constant is also calculated to improve the speed of the response. The Routh-Hurwitz criterion is also used to find the value and range of the dc gain k to design a stable system. In this paper a quantitative and comparative analysis of the original higher order systems and the reduced FOPDT and SOPDT systems (modelled by Ziggler-Nicholas and Root-Locus technique respectively), is also done for the various parameters like, settling time, rise time, transient time, peak overshoot, peak time etc. and then the unit step response for both the systems has been plotted and analyzed.
Keywords: FOPDT, SOPDT, PID Controller, Ziegler Nichols, Root Locus, settling time, tuning, rise time, Peak overshoot
Cite Article: "Tuning of PID Controller for FOPDT and SOPDT Systems", International Journal of Science & Engineering Development Research (www.ijrti.org), ISSN:2455-2631, Vol.7, Issue 8, page no.64 - 72, August-2022, Available :http://www.ijrti.org/papers/IJRTI2208014.pdf
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ISSN: 2456-3315 | IMPACT FACTOR: 8.14 Calculated By Google Scholar| ESTD YEAR: 2016
An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 8.14 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator
Publication Details: Published Paper ID: IJRTI2208014
Registration ID:183451
Published In: Volume 7 Issue 8, August-2022
DOI (Digital Object Identifier):
Page No: 64 - 72
Country: Chittorgarh, Rajsthan, India
Research Area: Instrumentation & Control Engg. 
Publisher : IJ Publication
Published Paper URL : https://www.ijrti.org/viewpaperforall?paper=IJRTI2208014
Published Paper PDF: https://www.ijrti.org/papers/IJRTI2208014
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ISSN: 2456-3315
Impact Factor: 8.14 and ISSN APPROVED
Journal Starting Year (ESTD) : 2016

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