PWM Control of a Buck Converter with an Amorphous Core Coil

Somolinos Sanchez, Jose Andres and Morales Cabrera, Rafael and Moron Fernandez, Carlos and Garcia Garcia, Alfonso (2011). PWM Control of a Buck Converter with an Amorphous Core Coil. In: "20th International Conference on Soft Magnetic Materials", 18/09/2011 - 22/09/2011, Isla Kos, Grecia. pp. 133-134.

Description

Title: PWM Control of a Buck Converter with an Amorphous Core Coil
Author/s:
  • Somolinos Sanchez, Jose Andres
  • Morales Cabrera, Rafael
  • Moron Fernandez, Carlos
  • Garcia Garcia, Alfonso
Item Type: Presentation at Congress or Conference (Article)
Event Title: 20th International Conference on Soft Magnetic Materials
Event Dates: 18/09/2011 - 22/09/2011
Event Location: Isla Kos, Grecia
Title of Book: Abstract books of the 20th International Conference on Soft Magnetic Materials
Date: 2011
Subjects:
Faculty: E.U. de Arquitectura Técnica (UPM)
Department: Tecnología de la Edificación
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Pulse-width modulation is widely used to control electronic converters. One of the most topologies used for high DC voltage/low DC voltage conversion is the Buck converter. It is obtained as a second order system with a LC filter between the switching subsystem and the load. The use of a coil with an amorphous magnetic material core instead of air core lets design converters with smaller size. If high switching frequencies are used for obtaining high quality voltage output, the value of the auto inductance L is reduced throughout the time. Then, robust controllers are needed if the accuracy of the converter response must not be affected by auto inductance and load variations. This paper presents a robust controller for a Buck converter based on a state space feedback control system combined with an additional virtual space variable which minimizes the effects of the inductance and load variations when a not-toohigh switching frequency is applied. The system exhibits a null steady-state average error response for the entire range of parameter variations. Simulation results are presented.

More information

Item ID: 13448
DC Identifier: http://oa.upm.es/13448/
OAI Identifier: oai:oa.upm.es:13448
Deposited by: Memoria Investigacion
Deposited on: 23 Oct 2012 07:50
Last Modified: 21 Apr 2016 12:45
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