TY - JOUR
T1 - A space-vector PWM method for a new type of modular multilevel converter
AU - Li, Qiang
AU - He, Zhiyuan
AU - Tang, Guangfu
AU - Si, Deliang
AU - Zheng, Binyi
AU - Yin, Zhiliang
PY - 2010/11/25
Y1 - 2010/11/25
N2 - Modular multilevel converters (MMC) are one of the newly developed multilevel converters. The bridge of a MMC consists of several submodules in series with independent DC sources. Combined with characteristics and mechanism of this structure, the space vector states are analyzed, and a generalized space vector pulse width modulation (SVPWM) algorithm for MMC is proposed. The algorithm is based on the optimum synthesis sequence of space vectors. The inherent correlation between multilevel SVPWM and carrier-based PWM was comprehensively analyzed to show that the multilevel SVPWM can be equivalent to proper zero sequence voltage components injected PWM. Through injecting proper zero sequence voltage components into the three phase reference voltages, and rearrange the action time of each voltage vector, 33% of the total switching time can be reduced. The simulation results illustrate the feasibility and validity of the proposed generalized SVPWM and the associated optimization method.
AB - Modular multilevel converters (MMC) are one of the newly developed multilevel converters. The bridge of a MMC consists of several submodules in series with independent DC sources. Combined with characteristics and mechanism of this structure, the space vector states are analyzed, and a generalized space vector pulse width modulation (SVPWM) algorithm for MMC is proposed. The algorithm is based on the optimum synthesis sequence of space vectors. The inherent correlation between multilevel SVPWM and carrier-based PWM was comprehensively analyzed to show that the multilevel SVPWM can be equivalent to proper zero sequence voltage components injected PWM. Through injecting proper zero sequence voltage components into the three phase reference voltages, and rearrange the action time of each voltage vector, 33% of the total switching time can be reduced. The simulation results illustrate the feasibility and validity of the proposed generalized SVPWM and the associated optimization method.
KW - Generalized zero vector
KW - Modular multilevel converter (MMC)
KW - Redundant space vector
KW - Space vector pulse width modulation (SVPWM)
KW - Submodule
UR - https://www.scopus.com/pages/publications/78650389697
M3 - 文章
AN - SCOPUS:78650389697
SN - 1000-1026
VL - 34
SP - 75-79+123
JO - Dianli Xitong Zidonghua/Automation of Electric Power Systems
JF - Dianli Xitong Zidonghua/Automation of Electric Power Systems
IS - 22
ER -