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Computationally efficient models for simulation of non-ideal DC-DC converters operating in continuous and discontinuous conduction modes

Krishna, Challa Mohana and Saritha, B and Narayanan, G (2015) Computationally efficient models for simulation of non-ideal DC-DC converters operating in continuous and discontinuous conduction modes. In: SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES, 40 (7). pp. 2045-2072.

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Official URL: http://dx.doi.org/10.1007/s12046-015-0436-9

Abstract

This paper discusses dynamic modeling of non-isolated DC-DC converters (buck, boost and buck-boost) under continuous and discontinuous modes of operation. Three types of models are presented for each converter, namely, switching model, average model and harmonic model. These models include significant non-idealities of the converters. The switching model gives the instantaneous currents and voltages of the converter. The average model provides the ripple-free currents and voltages, averaged over a switching cycle. The harmonic model gives the peak to peak values of ripple in currents and voltages. The validity of all these models is established by comparing the simulation results with the experimental results from laboratory prototypes, at different steady state and transient conditions. Simulation based on a combination of average and harmonic models is shown to provide all relevant information as obtained from the switching model, while consuming less computation time than the latter.

Item Type: Journal Article
Additional Information: Copy right for this article belongs to the INDIAN ACAD SCIENCES, C V RAMAN AVENUE, SADASHIVANAGAR, P B #8005, BANGALORE 560 080, INDIA
Keywords: Average model; buck converter; boost converter; buck-boost converter; harmonic model; switching model
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Depositing User: Id for Latest eprints
Date Deposited: 10 Feb 2016 05:46
Last Modified: 10 Feb 2016 05:46
URI: http://eprints.iisc.ac.in/id/eprint/53216

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