A Reduced Order Time-Delay Control for Highly Simplified Brushless DC Motor

[+] Author and Article Information
Pyung H. Chang, Suk-Ho Park

Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, 373-1 Kusong-dong, Yusong-gu, Taejon, Korea

Jung-Hoon Lee

Missile Actuation Systems Division, Agency for Defense Development, P.O. Box 35 4-2-5, Yusong-gu, Taejon, Korea

J. Dyn. Sys., Meas., Control 121(3), 556-560 (Sep 01, 1999) (5 pages) doi:10.1115/1.2802514 History: Received August 25, 1997; Online December 03, 2007


A reduced order time-delay control is derived and applied to the position control of a brushless DC motor with a highly simplified hardware configuration: use of six-step commutation without current control unit. In addition, the closed-loop stability has been analyzed by using the singular perturbation method. Throughout experimental studies, it is observed that reduced order time delay control effectively compensates for parameter variations and non-linearities, which a conventional PID control cannot handle with adequate performances. This result shows that reduced order time-delay control enables an economical design without compromising performance. More importantly, the example establishes a case that: a good control method can compensate for the hardware deficiency in a given plant, and as a result it even enables a simpler design of plants at the design stage.

Copyright © 1999 by The American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.





Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In