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Ingeniería, investigación y tecnología
versión On-line ISSN 2594-0732versión impresa ISSN 1405-7743
Resumen
LINARES-FLORES, J; ANTONIO-GARCIA, A y ORANTES-MOLINA, A. Smooth Starter for a DC Machine through a DC-to-DC Buck Converter. Ing. invest. y tecnol. [online]. 2011, vol.12, n.2, pp.137-148. ISSN 2594-0732.
This article presents the design and implementation of a speed controller for a DC motor through a buck converter, which tracks a smooth reference trajectory designed by a Bezier polynomial interpolation. The system reduces voltage and current sudden peaks in the armature circuit of the motor during the start. The calculation of the speed control is obtained from an output F called flat output (calculated through the Kalman controllability matrix). This control is based on feedback from all states rewritten in terms of the flat output and its successive derivatives for tracking the trajectory. With the aid of the pole placement technique it is possible to properly tune the controller in closed loop. The effectiveness of the system is verified experimentally by means of a platform that consists of the DC motor-buck converter and a PWM modulator.
Palabras llave : buck converter; velocity smooth starter; differential flatness.