TY - GEN
T1 - A new close-loop based capacitor voltage control method for modular multilevel converter with the switching frequency of 150 Hz
AU - Du, Sixing
AU - Liu, Jinjun
AU - Liu, Teng
PY - 2013
Y1 - 2013
N2 - This paper presents a DC voltage control method for modular multilevel converter (MMC) with a fixed switching frequency of 150 Hz. The proposed control method is developed based on the power balancing between reception and consumption. In order to evenly distribute power among the modules per phase leg, a certain relationship between DC and fundamental components in AC voltage of each module is considered as a mathematic constriction when applying selective harmonic elimination (SHE) method to calculate pulse pattern. Moreover, the different power loss of each modules may also cause the DC capacitor voltage deviation in a long-term run although the power absorbed are equal, so a close-loop based method of slightly changing the pulse width is introduced for canceling the power mismatching. The validity of the proposal is verified by computer simulation in both inverter and rectifier modes.
AB - This paper presents a DC voltage control method for modular multilevel converter (MMC) with a fixed switching frequency of 150 Hz. The proposed control method is developed based on the power balancing between reception and consumption. In order to evenly distribute power among the modules per phase leg, a certain relationship between DC and fundamental components in AC voltage of each module is considered as a mathematic constriction when applying selective harmonic elimination (SHE) method to calculate pulse pattern. Moreover, the different power loss of each modules may also cause the DC capacitor voltage deviation in a long-term run although the power absorbed are equal, so a close-loop based method of slightly changing the pulse width is introduced for canceling the power mismatching. The validity of the proposal is verified by computer simulation in both inverter and rectifier modes.
UR - https://www.scopus.com/pages/publications/84903182561
U2 - 10.1109/ifeec.2013.6687543
DO - 10.1109/ifeec.2013.6687543
M3 - 会议稿件
AN - SCOPUS:84903182561
SN - 9781479900718
T3 - 1st International Future Energy Electronics Conference, IFEEC 2013
SP - 426
EP - 430
BT - 1st International Future Energy Electronics Conference, IFEEC 2013
PB - IEEE Computer Society
T2 - 1st International Future Energy Electronics Conference, IFEEC 2013
Y2 - 3 November 2013 through 6 November 2013
ER -