Capacitor voltage ripple reduction and arm energy balancing in MMC-HVDC

Harsh Parikh, Ruben Sánches Martin-Loeches, Georgios Tsolaridis, Remus Teodorescu, Lászlo Máthé, Sanjay K. Chaudhary

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11 Citationer (Scopus)

Abstrakt

Modular Multilevel Converters are emerging and widely used in HVDC applications. However, the submodule capacitors are still large and the energy balancing under unbalanced conditions is a challenge. In this paper, an analytical model focusing on the energy stored in the capacitors and voltage variations is utilized in order to achieve better performance. By injecting a second order harmonic component into the circulating current, the energy variation and consequently the capacitor voltage ripple is reduced allowing for a capacitor size reduction. At the same time, an arm energy balancing controller has been proposed which uses the first harmonic of the circulating current in order to keep the energy balance of the leg under internal unbalanced conditions.
OriginalsprogEngelsk
TitelProceedings of 2016 IEEE 16th International Conference on Environment and Electrical Engineering (EEEIC)
Antal sider6
ForlagIEEE Press
Publikationsdatojun. 2016
ISBN (Elektronisk)978-1-5090-2320-2
DOI
StatusUdgivet - jun. 2016
Begivenhed2016 IEEE International Conference on Environment and Electrical Engineering (EEEIC 2016) - florence, Italien
Varighed: 6 jun. 20168 jun. 2016

Konference

Konference2016 IEEE International Conference on Environment and Electrical Engineering (EEEIC 2016)
LandItalien
Byflorence
Periode06/06/201608/06/2016

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Citationsformater

Parikh, H., Martin-Loeches, R. S., Tsolaridis, G., Teodorescu, R., Máthé, L., & Chaudhary, S. K. (2016). Capacitor voltage ripple reduction and arm energy balancing in MMC-HVDC. I Proceedings of 2016 IEEE 16th International Conference on Environment and Electrical Engineering (EEEIC) IEEE Press. https://doi.org/10.1109/EEEIC.2016.7555778