TY - GEN
T1 - Study on Wide DC Voltage Output Characteristics of Submodule Hybrid MMC Converter
AU - Li, Wei
AU - Li, Zhaodi
AU - Zhao, Hongwei
AU - Li, Weilin
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - With the great development of renewable energy power generation technology, the flexible direct current transmission technology (VSC-HVDC) comes into being with the advantages of no commutation failure and low harmonics. At present, with the development of power electronics technology, modular multilevel converter (MMC) has become the preferred converter topology for flexible HVDC systems. Among them, the hybrid MMC system based on half-bridge submodule and full-bridge submodule has the advantages of fewer components and low switching loss on the basis of the self-clearing ability of DC short-circuit fault. Therefore, this paper analyzes the DC voltage output capacity of hybrid sub-module MMC, analyzes the mechanism of the wide DC voltage output of hybrid MMC system, and further adds the restriction conditions to the DC side voltage output range of hybrid MMC in combination with the balance requirements of the capacitance voltage stability of the half-bridge sub-module in the actual operation process. Finally, the simulation model and physical model are established respectively based on MATLAB/Simulink software and DSP+ FPGA platform.
AB - With the great development of renewable energy power generation technology, the flexible direct current transmission technology (VSC-HVDC) comes into being with the advantages of no commutation failure and low harmonics. At present, with the development of power electronics technology, modular multilevel converter (MMC) has become the preferred converter topology for flexible HVDC systems. Among them, the hybrid MMC system based on half-bridge submodule and full-bridge submodule has the advantages of fewer components and low switching loss on the basis of the self-clearing ability of DC short-circuit fault. Therefore, this paper analyzes the DC voltage output capacity of hybrid sub-module MMC, analyzes the mechanism of the wide DC voltage output of hybrid MMC system, and further adds the restriction conditions to the DC side voltage output range of hybrid MMC in combination with the balance requirements of the capacitance voltage stability of the half-bridge sub-module in the actual operation process. Finally, the simulation model and physical model are established respectively based on MATLAB/Simulink software and DSP+ FPGA platform.
KW - Modular Multilevel Converter
KW - Submodule Hybrid
KW - Wide DC Voltage Output
UR - http://www.scopus.com/inward/record.url?scp=85167584784&partnerID=8YFLogxK
U2 - 10.1109/CIEEC58067.2023.10166546
DO - 10.1109/CIEEC58067.2023.10166546
M3 - 会议稿件
AN - SCOPUS:85167584784
T3 - 2023 IEEE 6th International Electrical and Energy Conference, CIEEC 2023
SP - 4422
EP - 4428
BT - 2023 IEEE 6th International Electrical and Energy Conference, CIEEC 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 6th IEEE International Electrical and Energy Conference, CIEEC 2023
Y2 - 12 May 2023 through 14 May 2023
ER -
