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Asian Journal of Scientific Research
  Year: 2012 | Volume: 5 | Issue: 3 | Page No.: 78-92
DOI: 10.3923/ajsr.2012.78.92
 
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Design and Implementation of CDM-PI Control Strategy in a pH Neutralization System

B. Meenakshipriya, K. Saravanan, K. Krishnamurthy and P.K. Bhaba

Abstract:
This study presents the design and implementation of a Coefficient Diagram Method (CDM) based PI controller in a pH neutralization system. By using the experimental step test method, the nonlinear pH system is approximated as First Order Plus Time Delay (FOPTD) transfer function. Based on the CDM, the tuning parameters of PI controller are designed and implemented in the laboratory scale strong acid-strong base pH neutralization system. The servo and regulatory performance of the proposed CDM-PI control strategy is compared with other conventional PI controllers at two different highly sensitive operating points. In addition, the robustness test is performed. The experimental results show that the proposed CDM-PI control strategy is effective and potential for severe non linear control problem.
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How to cite this article:

B. Meenakshipriya, K. Saravanan, K. Krishnamurthy and P.K. Bhaba, 2012. Design and Implementation of CDM-PI Control Strategy in a pH Neutralization System. Asian Journal of Scientific Research, 5: 78-92.

DOI: 10.3923/ajsr.2012.78.92

URL: https://scialert.net/abstract/?doi=ajsr.2012.78.92

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