Passivity characterization of grid-forming converters with fault-ride through capability
Paper i proceeding, 2021

Due to the increase in the use of renewable energy sources (RES) and a corresponding reduction in the conventional energy generation systems, there is nowadays a demand from the power-electronic converters to provide grid-forming properties through proper control of the converter systems. This
paper aims at evaluating the impact of various control loops of a grid-forming control strategy equipped with a fault-ride through capability on the passivity properties of the converter system. Through the analysis of the frequency-dependent input admittance of the converter, the main factors affecting the passivity property are identified. A simplified analytical model has been derived in order to propose possible control modifications to enhance system’s passivity at various frequencies of interest and the findings are verified through detailed time-domain simulations and experiments.

modeling

passivity

input admittance

stability analysis.

Control interaction

frequency analysis grid-forming converter

Författare

Mebtu Bihonegn Beza

Chalmers, Elektroteknik, Elkraftteknik, Elnät och komponenter

Massimo Bongiorno

Chalmers, Elektroteknik, Elkraftteknik, Elnät och komponenter

Anant Narula

Chalmers, Elektroteknik, Elkraftteknik, Elnät och komponenter

2021 23rd European Conference on Power Electronics and Applications, EPE 2021 ECCE Europe

2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe)
Ghent, Belgium,

Drivkrafter

Hållbar utveckling

Styrkeområden

Energi

Ämneskategorier

Elektroteknik och elektronik

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Senast uppdaterat

2021-11-25