Converter impedance characterization for stability analysis of low-voltage DC-grids | IEEE Conference Publication | IEEE Xplore

Converter impedance characterization for stability analysis of low-voltage DC-grids


Abstract:

The paper discusses aspects of modelling and operation of low-voltage DC-grids with aggregated power and load modules in terms of small-signal stability. Multiple power m...Show More

Abstract:

The paper discusses aspects of modelling and operation of low-voltage DC-grids with aggregated power and load modules in terms of small-signal stability. Multiple power modules connected to the common DC-bus potentially may become a reason of voltage instabilities due to background harmonics interactions. Unfortunately, in a practical grid implementation, usually the internal structure of the converters including control algorithms and parameters is not fully known for the users. A technique of experimental impedance identification, applied to each module and which consequently enables for the relatively simple and effective analysis of the aggregated system, is described.
Published in: ISGT 2014
Date of Conference: 19-22 February 2014
Date Added to IEEE Xplore: 19 May 2014
Electronic ISBN:978-1-4799-3653-3
Conference Location: Washington, DC, USA

References

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