RT Journal Article
T1 Circulating current injection methods based on instantaneous information for the modular multilevel converter
A1 Pou, Josep
A1 Ceballos, Salvador
A1 Konstantinou, Georgios
A1 Agelidis, Vassilios G.
A1 Picas, Ricard
A1 Zaragoza, Jordi
AB This paper studies different circulating current references for the modular multilevel converter. The circulating current references are obtained from the instantaneous values of the output current and modulation signal of the phase leg. Therefore, the determination of the amplitude and phase of the output current is not needed, which is a significant improvement compared to other methods such as those based on injecting specific harmonics in the circulating currents. Among the different methods studied in this paper, a new method is introduced, which is able to reduce the capacitor voltage ripples compared to the other methods. A closed-loop control is also proposed which is able to track the circulating current references. With the discussed methods, the average values of the capacitor voltages are maintained at their reference while the voltage ripples are kept low. Experimental results are presented to demonstrate the effectiveness of the proposed and discussed methods.
SN 0278-0046
YR 2015
FD 2015-02-01
LK https://hdl.handle.net/11556/3469
UL https://hdl.handle.net/11556/3469
LA eng
NO Pou , J , Ceballos , S , Konstantinou , G , Agelidis , V G , Picas , R & Zaragoza , J 2015 , ' Circulating current injection methods based on instantaneous information for the modular multilevel converter ' , IEEE Transactions on Industrial Electronics , vol. 62 , no. 2 , 6850020 , pp. 777-788 . https://doi.org/10.1109/TIE.2014.2336608
NO Publisher Copyright: © 2014 IEEE.
DS TECNALIA Publications
RD 28 jul 2024