Volume 3 Number 5 (Oct. 2011)
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IJCEE 2011 Vol.3(5): 634-639 ISSN: 1793-8163 DOI: 10.7763/IJCEE.2011.V3.394

Application of SDGM to Digital PID and Performance Comparison with Analog PID Controller

M. M. Israfil Shahin Seddiqe and Sobuj Kumar Ray

Abstract—Now-a-days PID (proportional-integral-derivative) controller is used in every type of small or large industries. For this the digital PID controller is so popular. But it is necessary to design and tune the PID controller in a proper method for applying the plant. The paper represents a method of tuning a digital proportional-integral-derivative (PID) controller. The name of the method is Steepest Gradient Descent Method (SDGM). It is an iterative method. The SDGM method is very simple, easy to use and each iteration is very fast. It is also a guaranteed method to find the minima through numerous times of iterations as long as it exists. By applying this optimization method PID controller is tuned both of digital and analog process. In the paper by applying the method of some plant the comparison result of analog and digital are shown. From the comparison it is found that the digital scheme is preferable than analog scheme.

Index Terms—PID controller, SDGM.

M. M. Israfil Shahin Seddiqe is with Rajshahi University of Engineering and Technology (RUET), Rajshahi, Bnagladeshin.(e-mail: mmisrafil@gmail. com)
Sobuj Kumar Ray is with the department of electrical and electronic engineering, internal university of business agriculture and technology. (e-mail: mmisrafil@gmail. com)

Cite: M. M. Israfil Shahin Seddiqe and Sobuj Kumar Ray, "Application of SDGM to Digital PID and Performance Comparison with Analog PID Controller," International Journal of Computer and Electrical Engineering vol. 3, no. 5, pp. 634-639, 2011.

General Information

ISSN: 1793-8163 (Print)
Abbreviated Title: Int. J. Comput. Electr. Eng.
Frequency: Quarterly
Editor-in-Chief: Prof. Yucong Duan
Abstracting/ Indexing: EI (INSPEC, IET), Ulrich's Periodicals Directory, Google Scholar, EBSCO, ProQuest, and Electronic Journals Library
E-mail: ijcee@iap.org

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