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Passivity‐based control for large‐signal stability of high‐order switching converters
Author(s) -
Leyva R.,
Olalla C.,
Queinnec I.,
Tarbouriech S.,
Alonso C.,
MartinezSalamero L.
Publication year - 2012
Publication title -
asian journal of control
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.769
H-Index - 53
eISSN - 1934-6093
pISSN - 1561-8625
DOI - 10.1002/asjc.379
Subject(s) - converters , passivity , control theory (sociology) , stability (learning theory) , nonlinear system , voltage , control (management) , state (computer science) , engineering , mathematics , computer science , physics , algorithm , electrical engineering , quantum mechanics , artificial intelligence , machine learning
This article presents a new passivity‐based control law that stabilizes the output voltage of a high‐order DC‐DC converter. Such nonlinear control law assures robust large‐signal stability, provides zero steady‐state error despite uncertainty in converter parameters and has enough degree of freedom to satisfy the usual transient specifications of DC‐DC converters. This new integral control is derived in three steps. First, a static law is obtained. Second, a positive semidefinite storage function is synthesized to guarantee zero steady‐state error of the output voltage. Finally, the storage functions of the first two steps are combined to derive the new control law for high‐order DC‐DC converters.Copyright © 2011 John Wiley and Sons Asia Pte Ltd and Chinese Automatic Control Society