期刊论文详细信息
The Journal of Engineering
Loss reduction analysis and control of AC-voltage-boosted FBSM MMC by injecting second harmonic circulating current
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[1] Global Energy Interconnection Research Institute, Beijing 102209, People's Republic of China;State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China;
关键词: HVDC power convertors;    HVDC power transmission;    power grids;    power transmission faults;    voltage-source convertors;    power transmission control;    PSCAD/EMTDC;    second harmonic circulating current;    modular multilevel converters;    HVDC systems;    converter loss;    AC voltage-boosted FBSM-MMC;    loss reduction method;    handling short-circuit faults;    power loss;    loss reduction analysis;   
DOI  :  10.1049/joe.2018.8716
来源: publisher
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【 摘 要 】

Reducing the power loss and handling short-circuit faults in HVDC systems are crucial for economical and reliable operation of modular multilevel converters (MMC). This paper proposes a loss reduction method for AC voltage-boosted FBSM-MMC by controlling the second harmonic component in the circulating current. The relationship between converter loss and second harmonic circulating current (SHCC) is first derived for AC voltage-boosted FBSM-MMC. From the analysis, it can be seen that the converter loss can be reduced by injecting the optimal SHCC into the arm current. The topology comparison between traditional FBSM-MMC and AC voltage-boosted FBSM-MMC is carried out to show the benefit of this method. Simulation results using PSCAD/EMTDC confirm the feasibility and validity of the proposed loss reduction method for AC voltage-boosted FBSM-MMC.

【 授权许可】

CC BY   

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