American Journal of Applied Sciences

DC Motor Control Predictive Models

Ravinesh Singh, Godfrey C. Onwubolu, Krishnileshwar Singh and Ritnesh Ram

DOI : 10.3844/ajassp.2006.2096.2102

American Journal of Applied Sciences

Volume 3, Issue 11

Pages 2096-2102


DC motor speed and position controls are fundamental in vehicles in general and robotics in particular. This study presents a mathematical model for correlating the interactions of some DC motor control parameters such as duty cycle, terminal voltage, frequency and load on some responses such as output current, voltage and speed by means of response surface methodology. For this exercise, a five-level full factorial design was chosen for experimentation using a peripheral interface controller (PIC)-based universal pulse width modulation (PWM) H-Bridge motor controller built in-house. The significance of the mathematical model developed was ascertained using regression analysis method. The results obtained show that the mathematical models are useful not only for predicting optimum DC motor parameters for achieving the desired quality but for speed and position optimization. Using the optimal combination of these parameters is useful in minimizing the power consumption and realization of the optimal speed and invariably position control of DC motor operations.


© 2006 Ravinesh Singh, Godfrey C. Onwubolu, Krishnileshwar Singh and Ritnesh Ram. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.