Effect of control method on impedance-based interactions in a buck converter

Vesti, Sanna Kaarina; Suntio, T.; Oliver Ramírez, Jesús Angel; Prieto López, Roberto y Cobos Márquez, José Antonio (2013). Effect of control method on impedance-based interactions in a buck converter. "IEEE Transactions on power electronics", v. 28 (n. 11); pp. 5311-5322. ISSN 0885-8993. https://doi.org/10.1109/TPEL.2013.2247422.

Descripción

Título: Effect of control method on impedance-based interactions in a buck converter
Autor/es:
  • Vesti, Sanna Kaarina
  • Suntio, T.
  • Oliver Ramírez, Jesús Angel
  • Prieto López, Roberto
  • Cobos Márquez, José Antonio
Tipo de Documento: Artículo
Título de Revista/Publicación: IEEE Transactions on power electronics
Fecha: 2013
Volumen: 28
Materias:
Palabras Clave Informales: Buck converter, dynamic behavior, minor-loop gain,source/load interactions, stability
Escuela: Centro de Electrónica Industrial (CEI) (UPM)
Departamento: Otro
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

All the interconnected regulated systems are prone to impedance-based interactions making them sensitive to instability and transient-performance degradation. The applied control method affects significantly the characteristics of the converter in terms of sensitivity to different impedance interactions. This paper provides for the first time the whole set of impedance-type internal parameters and the formulas according to which the interaction sensitivity can be fully explained and analyzed. The formulation given in this paper can be utilized equally either based on measured frequency responses or on predicted analytic transfer functions. Usually, the distributed dc-dc systems are constructed by using ready-made power modules without having thorough knowledge on the actual power-stage and control-system designs. As a consequence, the interaction characterization has to be based on the frequency responses measureable via the input and output terminals. A buck converter with four different control methods is experimentally characterized in frequency domain to demonstrate the effect of control method on the interaction sensitivity. The presented analytical models are used to explain the phenomena behind the changes in the interaction sensitivity.

Más información

ID de Registro: 29572
Identificador DC: http://oa.upm.es/29572/
Identificador OAI: oai:oa.upm.es:29572
Identificador DOI: 10.1109/TPEL.2013.2247422
URL Oficial: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6461965
Depositado por: Memoria Investigacion
Depositado el: 27 Abr 2015 16:14
Ultima Modificación: 27 Abr 2015 16:14
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