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Santiago de Querétaro, Mexico

Hernandez-Guzman V.M.,University Autononia Of Queretaro | Silva-Ortigoza R.,Cidetec | Munoz-Carrillo D.,Cidetec
International Journal of Innovative Computing, Information and Control | Year: 2015

This paper is concerned with velocity control of a brushed DC-motor when actuated using a DC to DC Buck power converter. We propose a controller which is proven to be asymptotically stable as long as the DC power supply can provide the necessary voltages at the converter inductor and capacitor. Our control scheme is the simplest controller proposed in the literature until now with a formal stability proof for this control problem. Moreover, the required number of computations are small and they are simple. Linear proportional-integral (PI) actions are used to regulate the motor electric current, the motor velocity and the converter capacitor voltage. This is important since it provides robustness to the control scheme and linear PI controllers are the main components used in the successful strategy used in industry to control brushed DC-motors. These results are tested experimentally in a setup constructed by the authors. © 2015 ISSN 1349-4198.

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