Accurate Small-Signal Model for an Automotive Bidirectional Dual Active Bridge Converter
- Conference Paper
The derivation of an accurate small-signal model for a galvanically isolated, bidirectional DC-DC converter and the implementation of a corresponding controller on a digital signal processor (DSP) as well as key methods and functions required for the digital implementation are detailed in this paper. The investigated DC-DC converter, an automotive Dual Active Bridge (DAB) system enables power transfer between a low voltage port (ranging from 11 V to 16 V) and a high voltage port (240 V to 450 V). The nominal power rating is 2 kW. The developed small-signal model yields highly accurate results for the DAB system, but the proposed modelling procedure could also be applied to arbitrary resonant power converters with unidirectional or bidirectional power transfer. Show more
Book title2008 IEEE 11th Workshop on Control and Modeling for Power Electronics
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