Comprehensive study of a binary technique for brushless DC motor control Online publication date: Wed, 30-Apr-2014
by Krishan K. Sharma
International Journal of Mechatronics and Automation (IJMA), Vol. 3, No. 3, 2013
Abstract: Brushless DC (BLDC) motor applications are increasing rapidly in electrical drives due to its advantages of low weight, low volume and high efficiency. However, the cost of these drives is higher due to higher magnet cost and complex control. Although efforts are being made to avoid the mechanical position sensors, still they are used in most applications. In this paper, a simple binary controller is selected for detailed study. The two performance indices, speed ripple and steady state speed error, are used for evaluation towards a number of speed ranges keeping the load torque constant. The steady state speed error is minimised for each speed range. The performance indices are further calculated for the same speed ranges with different load torques. It has been demonstrated in this work that the variations of speed ripple with speed and torque provide definite patterns which can be used to meet the system design for specific applications. The effect of varying the current conduction ratio of the controller on the speed ripple has also been discussed.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Mechatronics and Automation (IJMA):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook