Frequency scanning of power electronic-based smart grids: The modular multilevel converter application

The Multi-terminal HVdc systems is a key technology for bulk power transmission. The stability analysis of such power electronics-dominated power systems is a new challenge. This paper focuses on the analysis based on impedance representation of a modular multilevel converter. Therefore, a small sig...

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Bibliographic Details
Published in2013 4th IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG) pp. 1 - 8
Main Authors Sanchez, S., Bergna, G., Berne, E., Egrot, P., Vannier, J.-C, Molinas, M.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.07.2013
Subjects
Equations
HVDC transmission
Impedance
Mathematical model
Power electronics
Power system stability
Stability analysis
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Summary:The Multi-terminal HVdc systems is a key technology for bulk power transmission. The stability analysis of such power electronics-dominated power systems is a new challenge. This paper focuses on the analysis based on impedance representation of a modular multilevel converter. Therefore, a small signal input impedance modeling method is described for high and low frequencies. A comparative evaluation with the impedance obtained via simulations was performed by the application of a voltage perturbation to the DC side. In addition, the stability of the interconnection of two MMCs' in a Back-to-Back configuration was analyzed by means of Nyquist criteria.
ISSN:2329-5759
DOI:10.1109/PEDG.2013.6785629