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Asymmetrical Interleaved DC/DC Switching Converters for Photovoltaic and Fuel Cell Applications—Part 2: Control-Oriented Models

1
Universidad Nacional de Colombia, Medellin 05001000, Colombia
2
Universitat Rovira i Virgili, Tarragona 43007, Spain
3
Instituto Tecnológico Metropolitano, Medellin 05001000, Colombia
*
Author to whom correspondence should be addressed.
Energies 2013, 6(10), 5570-5596; https://doi.org/10.3390/en6105570
Received: 19 July 2013 / Revised: 26 August 2013 / Accepted: 5 September 2013 / Published: 23 October 2013
A previous article has presented the members of the asymmetrical interleaved dc/dc switching converters family as very appropriate candidates to interface between photovoltaic or fuel cell generators and their loads because of their reduced ripple and increased current processing capabilities. After a review of the main modeling methods suitable for high-order converters operating, as the asymmetrical interleaved converters (AIC) ones, in discontinuous current conduction mode a full-order averaged model has been adapted and improved to describe the dynamic behavior of AIC. The excellent agreement between the mathematical model predictions, the switched simulations and the experimental results has allowed for satisfactory design of a linear-quadratic regulator (LQR) in a fuel-cell application example, which demonstrates the usefulness of the improved control-oriented modeling approach when the switching converters operate in discontinuous conduction mode. View Full-Text
Keywords: DC/DC switching converters; photovoltaic; fuel cell; interleaved topologies; asymmetrical interleaving; discontinuous conduction mode (DCM); control-oriented model DC/DC switching converters; photovoltaic; fuel cell; interleaved topologies; asymmetrical interleaving; discontinuous conduction mode (DCM); control-oriented model
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Arango, E.; Ramos-Paja, C.A.; Calvente, J.; Giral, R.; Serna-Garces, S.I. Asymmetrical Interleaved DC/DC Switching Converters for Photovoltaic and Fuel Cell Applications—Part 2: Control-Oriented Models. Energies 2013, 6, 5570-5596.

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