TY - GEN
T1 - An innovative modular multilevel converter topology and modulation control scheme for the first VSC-HVDC project in China
AU - Ding, Guanjun
AU - Ding, Ming
AU - Tang, Guangfu
PY - 2008
Y1 - 2008
N2 - This paper presents an innovative modular multilevel converter topology suitable for very high voltage applications, especially network interties in power generation and transmission, e.g., High Voltage Direct Current Transmission System based on Voltage Source Converter (VSC-HVDC). And the paper is the part of prophase research for the implementation of the first VSC-HVDC project in China in 2009. The reason why the modular multilevel topology considered is explained. The working mechanism of it is described in detail. Then, the submodule (i.e., the basic building block) and the concept of controlled submodule capacitor voltages balancing are discussed. And the capacitance installed in each submodule is calculated in detail. In allusion to this new VSC topology, a modified multilevel fundamental switching modulation control scheme using power sums theory is presented. For demonstrating the good performance of the modular multilevel VSC topology, a three-phase pulse-controlled inverter is simulated. For this purpose the simulation software PSCAD/EMTDC linked to MATLAB/SIMULINK is used. And percharge of individual submoudle capacitors is described. The theory analysis and simulation results indicate that the new advanced VSC is superior to the existing two-level and three-level VSCs. And it has great potentiality in the application of VSC-HVDC projects in future.
AB - This paper presents an innovative modular multilevel converter topology suitable for very high voltage applications, especially network interties in power generation and transmission, e.g., High Voltage Direct Current Transmission System based on Voltage Source Converter (VSC-HVDC). And the paper is the part of prophase research for the implementation of the first VSC-HVDC project in China in 2009. The reason why the modular multilevel topology considered is explained. The working mechanism of it is described in detail. Then, the submodule (i.e., the basic building block) and the concept of controlled submodule capacitor voltages balancing are discussed. And the capacitance installed in each submodule is calculated in detail. In allusion to this new VSC topology, a modified multilevel fundamental switching modulation control scheme using power sums theory is presented. For demonstrating the good performance of the modular multilevel VSC topology, a three-phase pulse-controlled inverter is simulated. For this purpose the simulation software PSCAD/EMTDC linked to MATLAB/SIMULINK is used. And percharge of individual submoudle capacitors is described. The theory analysis and simulation results indicate that the new advanced VSC is superior to the existing two-level and three-level VSCs. And it has great potentiality in the application of VSC-HVDC projects in future.
KW - Innovative multilevel converter
KW - Multilevel fundamental switching scheme
KW - Power sums
KW - Topology
KW - Voltage Source Converter (VSC)
KW - VSC-HVDC
UR - https://www.scopus.com/pages/publications/84944096308
M3 - 会议稿件
AN - SCOPUS:84944096308
T3 - 16th Power Systems Computation Conference, PSCC 2008
BT - 16th Power Systems Computation Conference, PSCC 2008
PB - Power Systems Computation Conference ( PSCC )
T2 - 16th Power Systems Computation Conference, PSCC 2008
Y2 - 14 July 2008 through 18 July 2008
ER -