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Hierarchical Velocity Control Based on Differential Flatness for a DC/DC Buck Converter-DC Motor System
Author(s) -
Ramón SilvaOrtigoza,
Celso Márquez-Sánchez,
Fernando CarrizosaCorral,
Mayra Antonio-Cruz,
J. M. Alba-Martínez,
Griselda Saldaña-González
Publication year - 2014
Publication title -
mathematical problems in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.262
H-Index - 62
eISSN - 1026-7077
pISSN - 1024-123X
DOI - 10.1155/2014/912815
Subject(s) - control theory (sociology) , dc motor , dspace , buck converter , robustness (evolution) , voltage , flatness (cosmology) , angular velocity , computer science , pulse width modulation , controller (irrigation) , matlab , engineering , physics , control (management) , electrical engineering , agronomy , biochemistry , chemistry , cosmology , algorithm , quantum mechanics , artificial intelligence , biology , gene , operating system
This paper presents a hierarchical controller that carries out the angular velocity trajectory tracking task for a DC motor driven by a DC/DC Buck converter. The high level control is related to the DC motor and the low level control is dedicated to the DC/DC Buck converter; both controls are designed via differential flatness. The high level control provides a desired voltage profile for the DC motor to achieve the tracking of a desired angular velocity trajectory. Then, a low level control is designed to ensure that the output voltage of the DC/DC Buck converter tracks the voltage profile imposed by the high level control. In order to experimentally verify the hierarchical controller performance, a DS1104 electronic board from dSPACE and Matlab-Simulink are used. The switched implementation of the hierarchical average controller is accomplished by means of pulse width modulation. Experimental results of the hierarchical controller for the velocity trajectory tracking task show good performance and robustness against the uncertainties associated with different system parameters

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