Analysis of the effect of modulation delays on the size of the output capacitor

Cortés González, Jorge; Svikovic, Vladimir; Alou Cervera, Pedro; Oliver Ramírez, Jesús Angel y Cobos Marquez, Jose Antonio (2014). Analysis of the effect of modulation delays on the size of the output capacitor. En: "16th European Conference on Power Electronics and Applications (EPE'14-ECCE Europe)", 26/08/2014 - 28/08/2014, Lappeenranta, Finland. pp. 1-10. https://doi.org/10.1109/EPE.2014.6910947.

Descripción

Título: Analysis of the effect of modulation delays on the size of the output capacitor
Autor/es:
  • Cortés González, Jorge
  • Svikovic, Vladimir
  • Alou Cervera, Pedro
  • Oliver Ramírez, Jesús Angel
  • Cobos Marquez, Jose Antonio
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: 16th European Conference on Power Electronics and Applications (EPE'14-ECCE Europe)
Fechas del Evento: 26/08/2014 - 28/08/2014
Lugar del Evento: Lappeenranta, Finland
Título del Libro: 16th European Conference on Power Electronics and Applications (EPE'14-ECCE Europe)
Fecha: 2014
Materias:
Palabras Clave Informales: Converter Control, Pulse Width Modulation (PWM), Integrated Circuit (IC)
Escuela: Centro de Electrónica Industrial (CEI) (UPM)
Departamento: Automática, Ingeniería Eléctrica y Electrónica e Informática Industrial
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Constant frequency (PWM), constant on-time (COT) and constant off-time modulations exhibit inherent delays where the controller is unable to respond instantaneously. These delays can increase the required size of the output capacitor to meet dynamic requirements in applications with high demanding load such as the supply of microprocessors. This paper analyzes the minimum required output filter (output inductor and output capacitor) to meet a given specification and quantifies the effect that different modulations have in the minimum size of the output capacitor. The paper also shows a novel technique to mitigate the delays of the modulations by means of synchronizing the load step with the clock of the modulation. This technique is applicable to most of controllers as it only acts on the modulator.

Más información

ID de Registro: 36310
Identificador DC: http://oa.upm.es/36310/
Identificador OAI: oai:oa.upm.es:36310
Identificador DOI: 10.1109/EPE.2014.6910947
URL Oficial: http://ieeexplore.ieee.org/document/6910947/
Depositado por: Memoria Investigacion
Depositado el: 28 Mar 2017 17:56
Ultima Modificación: 28 Mar 2017 17:56
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