Design and Implementation of PI Controller for the Speed Control of DC Motor in Cooling System

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
© 2014 by IJETT Journal
Volume-9 Number-5                          
Year of Publication : 2014
Authors : Aruna.K , Pravin.M.R , Ramachandran.J , Sudheer.S , Sathiyasekar.K


Aruna.K , Pravin.M.R , Ramachandran.J , Sudheer.S , Sathiyasekar.K. "Design and Implementation of PI Controller for the Speed Control of DC Motor in Cooling System", International Journal of Engineering Trends and Technology(IJETT), V9(5),241-245 March 2014. ISSN:2231-5381. published by seventh sense research group


In recent days power consumption is becoming one of the most important constraints. This paper presents the design and implementation of PI controller using FPGA for the speed control of DC motor in the cooling system. In many industrial applications like Transformer, diesel engine etc., there is need to maintain the temperature to prevent the system from damage. Here the PMDC (Permanent Magnet DC) motor is used to drive the cooling fan in cooling system because they offer several advantages like no field winding, small in size, increase in efficiency .This study includes real time temperature control using a PI controller implemented on FPGA. The terminal voltage of the motor is controlled by using chopper, here MOSFET is used as a switching device in which the on and off time depends on the temperature variation. PI controller and PWM technique are used to control the speed which is described. The temperature variation and speed of the motor can be monitored in LCD display. The power saving can be done by automation in the speed control of the motor. The controller is modelled and the concept is proven using Mat Lab and the final simulation results are presented as well.


[1] C.Agees Kumar and N.Kesavan Nair “Multi-Objective PI Controller Design with an Application to Speed Control of Permanent Magnet DC Motor Drives”, Proceedings of 2011 International Conference on Signal Processing, Communication, Computing and Networking Technologies (ICSCCN 2011).
[2] Luis F. Castano and Gustavo A. Osorio “Design of a FPGA based position PI servo controller for a DC Motor with dry friction’’,Proceedings of IEEE 978-1-4244-8848,2011.
[3] Istvan Papp , Jelena Kovacevic, Milos Nikolic, Nebojsa Pjevalica, and Nikola Milivojevic “Real Time FPGA Implementation of Brushless DC Motor Control Using Single Current Sensor’’,Proceedings of the IEEE 11th International Symposium on Intelligent Systems and Informatics September 26-28, 2013, Subotica, Serbia
[4] Gurkan Zenginobuz, Hazım Faruk Bilgin, Nadir Kose.K and Muamme Ermis “A Unity-Power Factor Buck-Type PWM Rectifier for Medium/High-Power DC Motor Drive Applications”, Proceedings of IEEE transactions on industry applications, vol. 38, no. 5, september/october 2002.
[5] Jessen Chen and Pei-Chong Tang “A Sliding Mode Current Control Scheme for PWM Brushless DC Motor Drives”, Proceedings of IEEE transactions on power electronics, vol. 14, no. 3, may 1999.
[6] Elena Grassi and Kostas Tsakalis “PID Controller Tuning by Frequency Loop-Shaping: Application to Diffusion Furnace Temperature Control”, Proceedings of IEEE transactions on control systems technology, vol. 8, no. 5, September 2000.
[7] Da Zhang, Hui Li and Emmanuel G. Collins“Digital Anti-Windup PI Controllers for Variable-Speed Motor Drives Using FPGA and Stochastic Theory”, Proceedings of IEEE transactions on power electronics, vol. 21, no. 5, september 2006.
[8] Amit Vilas Sant , Nimit K.Sheth and Rajagopal. K.R “Permanent Magnet Synchronous Motor Drive Using Hybrid PI Speed Controller With Inherent and Noninherent Switching Functions”, Proceedings of IEEE transactions on magnetics, vol. 47, no. 10, october 2011.
[9] Chee Shen Lim, Emil Levi, Nasrudin Abd. Rahim and Wooi Ping Hew “A Comparative Study of Synchronous Current Control Schemes Based on FCS-MPC and PI-PWM for a Two-Motor Three-Phase Drive”,Proceedings of IEEE.

Field Programmable Gate Arrays(FPGA), MOSFET, Proportional–Integral (PI) controller, Pulse Width Modulation(PWM).