A Comparative Study of P-I, I-P, Fuzzy and Neuro-Fuzzy Controllers for Speed Control of DC Motor Drive

This paper presents a comparative study of various
controllers for the speed control of DC motor. The most commonly
used controller for the speed control of dc motor is Proportional-
Integral (P-I) controller. However, the P-I controller has some
disadvantages such as: the high starting overshoot, sensitivity to
controller gains and sluggish response due to sudden disturbance. So,
the relatively new Integral-Proportional (I-P) controller is proposed to
overcome the disadvantages of the P-I controller. Further, two Fuzzy
logic based controllers namely; Fuzzy control and Neuro-fuzzy
control are proposed and the performance these controllers are
compared with both P-I and I-P controllers. Simulation results are
presented and analyzed for all the controllers. It is observed that
fuzzy logic based controllers give better responses than the traditional
P-I as well as I-P controller for the speed control of dc motor drives.

Authors:

• S.R. Khuntia
• K.B. Mohanty
• S. Panda
• C. Ardil

Keywords:

• Proportional-Integral (P-I) controller
• Integral- Proportional (I-P) controller
• Fuzzy logic control
• Neuro-fuzzy control
• Speed control
• DC Motor drive.

References:

[1] J.P.K. Nandam, and P.C. Sen, “A comparative study of proportionalintegral
(P-I) and integral-proportional (I-P) controllers for dc motor
drives,” Int. Jour. of Control, Vol. 44, pp. 283-297, 1986.
[2] Yodyium Tipsuwan and Mo-Yuen Chow, “Fuzzy Logic microcontroller
implementation for DC motor speed control”, IEEE Trans. Power
Electronics, Vol. 11, No.3, pp 1271-1276, 1999.
[3] K.B. Mohanty, “Fuzzy remote controller for converter dc motor drives”,
Paritantra, Vol. 9, No. 1, June 2004.
[4] Thiang and Andru Hendra Wijaya, “Remote fuzzy logic control system
For a DC motor speed control”, Jurnal Teknik Elektro, Vol. 2, No. 1, pp.
8 – 12, 2008.
[5] S. Yuvarajan, Abdollah Khoei and Kh. Hadidi, “Fuzzy logic DC motor
controller with improved performance”, IEEE Trans. Power Electronics,
Vol. 11, No.3, pp 1652-1656, 1998.
[6] F.I Ahmed, A.M. El-Tobshy, A.A. Mahfouz, and M.M. Ibrahim, “(I-P)
Adaptive controller for dc motor drives: a hardware and software
approach”, Proceedings of International Conference on CONTROL
(Conference Publication No. 455, UKACC) 98, 1-4 September 1998, pp
1146-1150.
[7] Gilberto C.D. Sousa, and Bimal K. Bose, “A fuzzy set theory based
control of a phase-controlled converter dc machine drive“, IEEE Trans.
Industry Applications, Vol. 30, No. 1, pp. 34-43, 1994.