This paper addresses the design of closed-loop controllers, which simultaneously satisfy multiple conflicting performance specifications, to Brushless DC (BLDC) motors. In this paper, a linear stage, driven with a BLDC motor directly coupled to a lead screw, is modelled with a linear second-order linear dynamic system. The limitations of the linear model are discussed. A controller is designed to simultaneously satisfy three conflicting performance specifications. The robustness of the controller to parameter uncertainty is investigated. Experimental results demonstrate the validity of the proposed approach. A design example is carried throughout the paper, to illustrate the work.

Issue Section:
Technical Briefs
Keywords:
materials handling, position control, brushless DC motors, DC motor drives, closed loop systems, control system synthesis
Topics:
Control equipment, Motors, Design, Design methodology
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Copyright © 2001
 by ASME
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