Home   >   CSC-OpenAccess Library   >    Manuscript Information
Full Text Available

This is an Open Access publication published under CSC-OpenAccess Policy.
Speed Control of DC Motor under Varying Load Using PID Controller
Muhammad Rafay Khan, Aleem Ahmed Khan, Umer Ghazali
Pages - 38 - 48     |    Revised - 31-07-2015     |    Published - 31-08-2015
Volume - 9   Issue - 3    |    Publication Date - August 2015  Table of Contents
Speed Control, DC Motor Model, PID Control, Closed Loop, Load Disturbance.
DC motors are used extensively in industrial variable speed applications because of most demanding speed-torque characteristics and are simple in controlling aspects. This paper presents a DC motor speed controlling technique under varying load condition. The linear system model of separately excited DC motor with Torque-variation is designed using PID controller. A Matlab simulation of proposed system with no-Load and full-load condition is performed on Simulink platform to observe the system response. The motor speed is kept constant in this experiment. The simulation result of the experiment shows that a motor is running approximately at a constant speed regardless of a motor load. The Simulink results show that the speed of the motor is slow down only for about 270 rpm (9%) in 980 milliseconds under the effect of full load. However, the motor speed is hunting about 200 rpm (6.66%) in 900 milliseconds on unloading condition. It is concluded that a PID controller is successful tool for controlling the motor speed in presence of load disturbances.
CITED BY (1)  
1 Kumar, U., & Dohare, D. (2015). Separately Excited DC Motor Speed control of using various Tuning Conventional Controllers.
1 Google Scholar
2 CiteSeerX
3 refSeek
4 Scribd
5 SlideShare
6 PdfSR
1 P.C. Sen, “Principles of Electrical Machines & Power Electronics”, USA: John Wiley & Sons, 1996.
2 K. J. Astrom and T. Hagglund,”PID controllers Theory, Design and Tuning”, 2nd edition, Instrument Society of America, 1994
3 “PID Design Method for the DC Motor Speed Control”, Internet: www.dii.unisi.it/~control/ctm/examples/motor/PID2.html, 2012 [Feb 20, 2015].
4 “WATLOW PID practical guide for process control”, Internet: https://www.watlow.com/downloads/en/whitepapers/pid%20practical%20guide.pdf, Aug 2005, [Feb 17, 2015].
5 M. Shahrokhi and A. Zomorrodi , “Comparison of PID Controller Tuning Methods”, Internet: www.personal.psu.edu/users/a/u/auz107/Publications-files/Zomorrodi-Shahrokhi-PIDTunning-Co mparison.pdf, 2013 [Jan 25, 2015].
6 W. Djatmiko and B. Sutopo, “Speed Control DC Motor under Varying Load Using PhaseLocked Loop System”, International Conference on Electrical, Electronics, Communication and Information CECI, Jakarta 2001
7 Elsrogy, Fkirin, Hassan, “Speed control of DC motor using PID controller based on artificial intelligence techniques” International Conference on Control, Decision and Information Technologies (CoDIT), 2013, pp. 196-201
8 Rajeshkanna, “Modern speed control of separately excited DC Motor by Boost converter fed field control method”, International Conference on Computer Communication and Informatics (ICCCI), 2013, pp. 1-7
9 K. Rajanwal, R. Shakya, S. Patel, R. K. Maurya, “Comparative Analysis of PI, PID and Fuzzy Logic Controllers for Speed Control of DC Motor”, International Journal of Engineering Research and Technology, Vol. 3 - Issue 1, pp. 1319-1324, Jan 20, 2014.
10 H. L. Chan and K. T. Woo, “Closed Loop Speed Control of Miniature Brushless DC Motors”, Journal of Automation and Control Engineering, Vol. 3, No. 4, pp. 329-335, Aug 2015.
11 C. Perez and M. Strefezza, "Speed control of a DC motor by using fuzzy variable structure controller," in Control Conference, 2008. CCC 2008. 27th Chinese, 2008, pp. 311-315
12 R. K. Munje, M. R. Roda, B. E. Kushare, "Speed Control of DC Motor Using PI and SMC", Proc. of IEEE Int. Conf. on Power and Energy, Singapore, Oct 2010, pp. 945-950
13 Aydemir,S;Sezen,S,Ertunc,H.M, "Fuzzy logic speed control of a DC Motor", Proceedings of Int. Conf. on Power Electronics and Motor Control, vol. 2, pp. 190-194,2004
14 A. A. El-Samahy, "Speed control of DC motor using adaptive variable structure control", IEEE 31st Annual Power Electronics Specialists Conference, 1118-1123, 2000.
Mr. Muhammad Rafay Khan
Electronic Engineering Department Sir Syed University of Engineering & Technology Karachi, 75300, Pakistan - Pakistan
Mr. Aleem Ahmed Khan
Electronic Engineering Department Sir Syed University of Engineering & Technology Karachi, 75300, Pakistan - Pakistan
Mr. Umer Ghazali
Electronic Engineering Department Sir Syed University of Engineering & Technology Karachi, 75300, Pakistan - Pakistan