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  • Book
  • © 2018

Relay Tuning of PID Controllers

For Unstable MIMO Processes

  • Presents a clear and concise method for the tuning of PID control of unstable scalar and multivariable systems
  • Develops tuning rules based on ultimate values (improved Ziegler-Nichols method) for unstable systems
  • Includes extensive simulation studies on unstable systems to show the effectiveness of the method

Part of the book series: Advances in Industrial Control (AIC)

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Table of contents (9 chapters)

  1. Front Matter

    Pages i-xxx
  2. Introduction

    • M. Chidambaram, Nikita Saxena
    Pages 1-12
  3. Relay Control System

    • M. Chidambaram, Nikita Saxena
    Pages 13-51
  4. Auto-Tuning of Unstable SOPTD Systems

    • M. Chidambaram, Nikita Saxena
    Pages 53-74
  5. Decentralized PID Controllers for Stable Systems

    • M. Chidambaram, Nikita Saxena
    Pages 75-92
  6. Decentralized PID Controllers for Unstable Systems

    • M. Chidambaram, Nikita Saxena
    Pages 93-111
  7. Centralized PID Controllers for Unstable System

    • M. Chidambaram, Nikita Saxena
    Pages 113-126
  8. Tuning Rules for PID Controllers for Unstable Systems

    • M. Chidambaram, Nikita Saxena
    Pages 151-165
  9. Auto-tuning of Decentralized Unstable System With Refined ZN Method

    • M. Chidambaram, Nikita Saxena
    Pages 167-182
  10. Back Matter

    Pages 183-202

About this book

This book presents comprehensive information on the relay auto-tuning method for unstable systems in process control industries, and introduces a new, refined Ziegler-Nichols method for designing controllers for unstable systems. The relay auto-tuning method is intended to assist graduate students in chemical, electrical, electronics and instrumentation engineering who are engaged in advanced process control. The book’s main focus is on developing a controller tuning method for scalar and multivariable systems, particularly for unstable processes. It proposes a much simpler technique, avoiding the shortcomings of the popular relay-tuning method. The effects of higher-order harmonics are incorporated, owing to the shape of output waveforms. In turn, the book demonstrates the applicability and effectiveness of the Ziegler-Nichols method through simulations on a number of linear and non-linear unstable systems, confirming that it delivers better performance and robust stability in the presence of uncertainty. The proposed method can also be easily implemented across industries with the help of various auto-tuners available on the market. Offering a professional and modern perspective on profitably and efficiently automating controller tuning, the book will be of interest to graduate students, researchers, and industry professionals alike.

Authors and Affiliations

  • Department of Chemical Engineering, Indian Institute of Technology Madras Department of Chemical Engineering, Chennai, India

    M. Chidambaram

  • Department of Chemical Engineering, Indian Institute of Technology Madras, Chennai, India

    Nikita Saxena

About the authors

M. Chidambaram is currently a Professor at the Department of Chemical Engineering, Indian Institute of Technology in Madras, Chennai. After completing his PhD at the Indian Institute of Science in Bangalore he served as a faculty member at the Indian Institute of Technology Bombay, Mumbai, from 1984 to 1991. Since then he has been a faculty member at the Indian Institute of Technology in Madras. He has also served the institute as Head of the Department of Chemical Engineering from 2000 to 2003 and as the Director, National Institute of Technology (NIT), Tiruchirappalli from 2005 to 2010. He has 190 journal articles, 7 books and 4 book chapters to his credit. His primary research interest is in the area of process control.

'Nikita Saxena completed her PhD' under the guidance of Prof. M Chidambaram. She completed her degree (BTech) in Chemical Technology at Harcourt Butler Technical Institute (HBTI), Kanpur. She also has a year of experience in the fast-moving consumer goods (FMCG) industry. She has authored 4 journal articles and presented papers at several conferences. Her areas of interest include relay control systems and model identification.

Bibliographic Information

Buy it now

Buying options

eBook USD 84.99
Price excludes VAT (USA)
  • Available as EPUB and PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book USD 109.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info
Hardcover Book USD 109.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Other ways to access