TY - JOUR
T1 - A strategy of circulation current suppressing for modular multilevel converter based on model predictive control method
AU - Gao, Shi
AU - Huang, Jingjing
AU - Tong, Xiangqian
AU - Jin, Yan
AU - Liu, Zhouzhou
N1 - Publisher Copyright:
© 2015, Journal Northern Jiaotong University. All right reserved.
PY - 2015/10/1
Y1 - 2015/10/1
N2 - In order to suppress the interphase circulating current existing in the modular multilevel converter (MMC), a circulating current suppressed model in predictive control (MPC) is presented. It is built on basis of the traditional control system. Combined with the approximation modulation of the nearest level, through testing the circulating current direction, the second harmonic circulating current can be suppressed quantitatively by updating the input module in the real-time Compared with the traditional method, there is no need for the proposed method to consider the frequency characteristics of the circulating current, the complex parameters design is eliminated, and the realization is simple. Meanwhile, the proposed method is more suitable for the practical engineering which has a large number of submodules. The simulation has been carried out in the PSCAD. The results show that the proposed strategy can suppress circulating current effectively so that the arm current distortion and the module voltage fluctuation can be greatly reduced.
AB - In order to suppress the interphase circulating current existing in the modular multilevel converter (MMC), a circulating current suppressed model in predictive control (MPC) is presented. It is built on basis of the traditional control system. Combined with the approximation modulation of the nearest level, through testing the circulating current direction, the second harmonic circulating current can be suppressed quantitatively by updating the input module in the real-time Compared with the traditional method, there is no need for the proposed method to consider the frequency characteristics of the circulating current, the complex parameters design is eliminated, and the realization is simple. Meanwhile, the proposed method is more suitable for the practical engineering which has a large number of submodules. The simulation has been carried out in the PSCAD. The results show that the proposed strategy can suppress circulating current effectively so that the arm current distortion and the module voltage fluctuation can be greatly reduced.
KW - Circulation current quantitative suppression
KW - Model in predictive control
KW - Modular multilevel converter
KW - Submodule quantity change and update
UR - https://www.scopus.com/pages/publications/84948416889
U2 - 10.11860/j.issn.1673-0291.2015.05.20
DO - 10.11860/j.issn.1673-0291.2015.05.20
M3 - 文章
AN - SCOPUS:84948416889
SN - 1673-0291
VL - 39
SP - 118
EP - 124
JO - Beijing Jiaotong Daxue Xuebao/Journal of Beijing Jiaotong University
JF - Beijing Jiaotong Daxue Xuebao/Journal of Beijing Jiaotong University
IS - 5
ER -