Paper Info
Title
A study of circulating current in MMC based HVDC system under an unbalanced grid condition
Abstract
This paper shows a study about circulating current of modular multilevel converter (MMC) based a high voltage direct current (HVDC) system under some unbalanced grid conditions. A basic structure of the MMC HVDC system is introduced and its system dynamics is analyzed. Based on the analysis, the modeling of circulating current and its control method under balanced or unbalanced grid condition are described. From the point of view in circulating current control, two kinds of power control methods are analyzed and their performances compared. In addition, in order to apply the power control methods, some practical considerations are proposed and described. Several simulation results performed in the PSIM software verify the proposed analysis and consideration of the power control methods under various grid conditions.
Year
DOI
Venue
2014
10.1109/IECON.2014.7049125
IECON
Keywords
Field
DocType
hvdc power convertors,electric current control,power control,power grids,mmc hvdc system,psim software,circulating current control,high voltage direct current system,modular multilevel converter,power control methods,system dynamics,unbalanced grid conditions,high voltage direct current (hvdc),modular multilevel converter (mmc),circulating current,inductors,reliability,control systems,reactive power
High-voltage direct current,Control theory,HVDC converter station,Power control,Electric power system,Inductor,Control engineering,AC power,Engineering,Control system,Grid
Conference
ISSN
Citations 
PageRank 
1553-572X
1
0.38
References 
Authors
2
4
Name
Order
Citations
PageRank
Won-Seok Do110.38
Si-Hwan Kim210.72
Tae-jin Kim311121.38
Rae-Young Kim44411.79