A very fast control based on hysteresis of the Cout current with a frequency loop to operate at constant frequency

Huerta Oliveres, Santa Concepción; Alou Cervera, Pedro; Oliver Ramírez, Jesús Angel; García Suárez, Oscar; Cobos Márquez, José Antonio y Abou-Alfotouh, A. (2009). A very fast control based on hysteresis of the Cout current with a frequency loop to operate at constant frequency . En: "24th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2009", 15/02/2009 - 19/02/2009, Washington, Estados Unidos. ISBN 978-1-4244-2811-3. https://doi.org/10.1109/APEC.2009.4802753.

Descripción

Título: A very fast control based on hysteresis of the Cout current with a frequency loop to operate at constant frequency
Autor/es:
  • Huerta Oliveres, Santa Concepción
  • Alou Cervera, Pedro
  • Oliver Ramírez, Jesús Angel
  • García Suárez, Oscar
  • Cobos Márquez, José Antonio
  • Abou-Alfotouh, A.
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: 24th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2009
Fechas del Evento: 15/02/2009 - 19/02/2009
Lugar del Evento: Washington, Estados Unidos
Título del Libro: Proceedings of the 24th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2009
Fecha: 2009
ISBN: 978-1-4244-2811-3
Materias:
Escuela: E.T.S.I. Industriales (UPM)
Departamento: Automática, Ingeniería Electrónica e Informática Industrial [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

The combination of non-linear control and linear control proposed in [1] provides very fast transient response (voltage step from 1 V to 1.5 V in 2 μs). This non-linear control is based on hysteretic control of the Cout current. This system is very sensitive to effects like aging, temperature, input and output voltage variation, etc., that modify the switching frequency. This paper proposes a frequency loop to avoid the frequency variation and to adjust the switching frequency to the nominal value by changing the hysteretic band. The design and analysis of the nonlinear loop, the voltage loop and frequency loop are presented in detail with a design example. A 5 MHz buck converter is developed and experimental results validate the loops design, obtaining the same fast transient response (from 1.5 V to 2.5 V in 2 μs) but keeping constant the switching frequency in steady state.

Más información

ID de Registro: 5517
Identificador DC: http://oa.upm.es/5517/
Identificador OAI: oai:oa.upm.es:5517
Identificador DOI: 10.1109/APEC.2009.4802753
URL Oficial: http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=04802753
Depositado por: Memoria Investigacion
Depositado el: 20 Dic 2010 09:56
Ultima Modificación: 20 Abr 2016 14:17
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