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An optimal modulation strategy for minimising the losses of isolated multisource DC-DC converters | IEEE Conference Publication | IEEE Xplore
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An optimal modulation strategy for minimising the losses of isolated multisource DC-DC converters


Abstract:

The paper investigates optimal modulation of isolated two-quadrant and multisource DC-DC converters. Due to their numerous degrees of freedom there are infinitely many po...Show More

Abstract:

The paper investigates optimal modulation of isolated two-quadrant and multisource DC-DC converters. Due to their numerous degrees of freedom there are infinitely many possibilities to modulate the voltage patterns in order to achieve the desired power transfer. The objective of this work is to exploit this flexibility to derive a modulation strategy that minimises the system power losses. A systematic modelling and optimisation approach is proposed that allows to minimise the overall losses subject to constraints on particular devices. The obtained optimal modulation angles are stored in look-up tables. The impact of the transformer leakage inductance on the efficiency is investigated, which gives some indications on how to design the transformer. Effectiveness of the approach is demonstrated in simulation.
Date of Conference: 25-28 October 2012
Date Added to IEEE Xplore: 20 December 2012
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ISSN Information:

Conference Location: Montreal, QC, Canada

References

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