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Modelling of switched mode power converters using bond graph

Umarikar, AC and Umanand, L (2005) Modelling of switched mode power converters using bond graph. In: Electric Power Applications-IEE Proceedings, 152 (1). pp. 51-60.


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Modelling of the switched mode power converter (SMPC) involves obtaining the large signal, steady-state and small signal representations. Transfer functions and state equations are used for mathematical representation of the SMPC. Obtaining these dynamic models using a mathematical or graphical approach sometimes lead to loss of an intuitive understanding of the system dynamics. A unified graphical method of modelling SMPC using bond graphs is presented. Only the PWM DC-DC converters are considered. The concept of switched power junctions is used for modelling of switching phenomenon in the SMPC. This approach uses a logical process of graphical reduction, which ultimately results in the state equations of the large signal and small signal AC models of the SMPC including the steady-state equations of the SMPC. This method is applicable to SMPC, in both continuous conduction mode and discontinuous conduction mode The proposed modelling approach is illustrated by a few examples.

Item Type: Journal Article
Publication: Electric Power Applications-IEE Proceedings
Publisher: Institution of Electrical Engineers
Additional Information: The copyright for this article belongs to Institution for Electrical Engineers.
Department/Centre: Division of Electrical Sciences > Electronic Systems Engineering (Formerly Centre for Electronic Design & Technology)
Date Deposited: 26 Oct 2005
Last Modified: 19 Sep 2010 04:18
URI: http://eprints.iisc.ac.in/id/eprint/3025

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