TY - JOUR
T1 - A Novel STATCOM Based on Diode-Clamped Modular Multilevel Converters
AU - Liu, Xiangdong
AU - Lv, Jingliang
AU - Gao, Congzhe
AU - Chen, Zhen
AU - Chen, Si
N1 - Publisher Copyright:
© 1986-2012 IEEE.
PY - 2017/8
Y1 - 2017/8
N2 - A new static synchronous compensator (STATCOM) based on the diode-clamped modular multilevel converter (DCM2C) is proposed in this paper. In this converter topology, the capacitor voltage is clamped by using a low power rating diode in each submodule. The quantity of voltage sensors is significantly reduced and is free from the number of voltage levels. Furthermore, the voltage balancing control method becomes very simple and the capacitor voltage balance speed is fast. Based on the structure of modular multilevel converter, the DCM2C-STATCOM has the capability of Var compensation and negative-sequence current compensation. The topology characteristics and compensation control method of DCM2C-STATCOM are investigated in this paper. Experimental results obtained from a laboratory prototype validate that the capacitor voltage of the proposed DCM2C-STATCOM can be well balanced and the Var and negative-sequence current compensations are effective.
AB - A new static synchronous compensator (STATCOM) based on the diode-clamped modular multilevel converter (DCM2C) is proposed in this paper. In this converter topology, the capacitor voltage is clamped by using a low power rating diode in each submodule. The quantity of voltage sensors is significantly reduced and is free from the number of voltage levels. Furthermore, the voltage balancing control method becomes very simple and the capacitor voltage balance speed is fast. Based on the structure of modular multilevel converter, the DCM2C-STATCOM has the capability of Var compensation and negative-sequence current compensation. The topology characteristics and compensation control method of DCM2C-STATCOM are investigated in this paper. Experimental results obtained from a laboratory prototype validate that the capacitor voltage of the proposed DCM2C-STATCOM can be well balanced and the Var and negative-sequence current compensations are effective.
KW - Diode-clamped modular multilevel converter (DCM2 C)
KW - modular multilevel converter (MMC)
KW - static synchronous compensator (STATCOM)
UR - http://www.scopus.com/inward/record.url?scp=85017641722&partnerID=8YFLogxK
U2 - 10.1109/TPEL.2016.2616495
DO - 10.1109/TPEL.2016.2616495
M3 - Article
AN - SCOPUS:85017641722
SN - 0885-8993
VL - 32
SP - 5964
EP - 5977
JO - IEEE Transactions on Power Electronics
JF - IEEE Transactions on Power Electronics
IS - 8
M1 - 7588136
ER -