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Modular multilevel converter (MMC) as a new converter topology has been widely used in the field of the high voltage direct current transmission (HVDC) and flexible alternating current transmission system (FACTS). This paper established a MMC Hardware-in-Loop (MMC-HIL) Platform based on RT-LAB. This platform contains a monitor computer, the OP5600 object machine, a modular multilevel converter, digital...
To provide 2 types of DC voltage, a bipolar-type DC micro-grid is adopted in this paper. The I-U droop control is proposed to achieve parallel operation of three-level converters in DC micro-grid. To solve unbalance potential of converters, the neutral point potential control is added into the I-U droop control. To eliminate influence of line impedance and improve the accuracy of power distribution,...
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