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MODULAR MULTILEVEL CONVERTER WITH MULTI-PORT DC POWER FLOW CONTROL AND CONTROL METHOD THEREOF
MODULAR MULTILEVEL CONVERTER WITH MULTI-PORT DC POWER FLOW CONTROL AND CONTROL METHOD THEREOF
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机译：具有多端口DC电源流量控制的模块化多电平转换器及其控制方法
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摘要
A modular multilevel converter with multi-port DC power flow control includes a modular multilevel converter topology and a DC power flow controller, wherein an input terminal of the DC power flow controller is connected in series to uppermost submodules of upper arms of the modular multilevel converter topology, and with power transfer and energy interaction between the modular multilevel converter topology and an AC power grid, a converter station or a solid state transformer based on the modular multilevel converter topology has a function of direct current power flow control. The output terminal of the DC power flow controller adopts DC/DC converters to regulate the output voltage, and a plurality of DC/DC converters share a common DC bus with the ports connected with different DC outlet lines, thereby providing a plurality of flexible and controllable DC ports.
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