TY - JOUR
T1 - Harmonic influence analysis of unified power flow controller based on modular multilevel converter
AU - Yuan, Yubo
AU - Li, Peng
AU - Kong, Xiangping
AU - Liu, Jiankun
AU - Li, Qun
AU - Wang, Ye
N1 - Publisher Copyright:
© The Author (s) 2016.
PY - 2016/1
Y1 - 2016/1
N2 - The unified power flow controller (UPFC) based on modular multilevel converter (MMC) is the most creative flexible ac transmission system (FACTS) device. In theory, the output voltage of the series MMC in MMCUPFC can be regulated from 0 to the rated value. However, there would be relatively large harmonics in the output voltage if the voltage modulation ratio is small. In order to analyze the influence of MMC-UPFC on the harmonics of the power grid, the theoretical calculation method and spectra of the output voltage harmonics of MMC are presented. Subsequently, the calculation formulas of the harmonics in the power grid with UPFC are proposed. Based on it, the influence of UPFC on the grid voltage harmonics is evaluated, when MMC-UPFC is operated with different submodular numbers and voltage modular ratios. Eventually, the proposed analysis method is validated using digital simulation. The study results would provide guideline for the design and operation of MMC-UPFC project.
AB - The unified power flow controller (UPFC) based on modular multilevel converter (MMC) is the most creative flexible ac transmission system (FACTS) device. In theory, the output voltage of the series MMC in MMCUPFC can be regulated from 0 to the rated value. However, there would be relatively large harmonics in the output voltage if the voltage modulation ratio is small. In order to analyze the influence of MMC-UPFC on the harmonics of the power grid, the theoretical calculation method and spectra of the output voltage harmonics of MMC are presented. Subsequently, the calculation formulas of the harmonics in the power grid with UPFC are proposed. Based on it, the influence of UPFC on the grid voltage harmonics is evaluated, when MMC-UPFC is operated with different submodular numbers and voltage modular ratios. Eventually, the proposed analysis method is validated using digital simulation. The study results would provide guideline for the design and operation of MMC-UPFC project.
KW - Harmonic features
KW - Modular multilevel converter (MMC)
KW - Submodular number
KW - Unified power flow controller (UPFC)
KW - Voltage modulation ratio
UR - https://www.scopus.com/pages/publications/85007044999
U2 - 10.1007/s40565-015-0175-2
DO - 10.1007/s40565-015-0175-2
M3 - 文章
AN - SCOPUS:85007044999
SN - 2196-5625
VL - 4
SP - 10
EP - 18
JO - Journal of Modern Power Systems and Clean Energy
JF - Journal of Modern Power Systems and Clean Energy
IS - 1
ER -
