Variable-resolution simulation of nonlinear power circuits

Ali Davoudi, Sairja Dhople, Patrick L. Chapman, Juri Jatskevich

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Highly detailed models of power converters can be slow to simulate due to the wide disparity in transient time scales. This is further pronounced in the presence of nonlinear components, e.g., saturated inductors. Variable-resolution simulation provides an alternative method by providing an appropriate amount of detail based on the time scale and phenomenon being considered. First, a high-fidelity detailed full-order model of the converter is built that accounts for the system parasitics and higher order effects, component nonlinearity, etc. Efficient order-reduction techniques are then used to extract several lower order models for the desired resolution of the simulation. The state continuity across different resolutions and switching events is ensured using appropriate similarity transforms. The proposed variable-resolution simulation framework is demonstrated on a boost converter with a saturated inductor. Significant improvement in simulation speed (orders of magnitude) is reported.

Original languageEnglish (US)
Title of host publicationISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems
Subtitle of host publicationNano-Bio Circuit Fabrics and Systems
Pages2750-2753
Number of pages4
DOIs
StatePublished - Aug 31 2010
Event2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems, ISCAS 2010 - Paris, France
Duration: May 30 2010Jun 2 2010

Publication series

NameISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems

Other

Other2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems, ISCAS 2010
CountryFrance
CityParis
Period5/30/106/2/10

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