Meet the Micro-MMC

IEEE POWER ELECTRONICS MAGAZINE(2023)

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摘要
The micro-modular multilevel converter (mu MMC) concept proposes a benchtop-scale, low-voltage, open-source, and affordable hardware prototype of a modular multilevel converter (MMC) intended for research and teaching applications. The mu MMC (mu originates from its rating being approximately one millionth of usual transmission-scale MMCs) aims to provide a solution to break the barrier from theory to practice, thanks to its all-integrated eight full-bridge (FB) submodules (SM) in a 10x10 cm printed circuit board (PCB) with a local microcontroller able to communicate with an external master controller. The electronics is rated for a 30 V dc bus voltage as typically found in traditional lab power supplies, providing both convenience and safety. This structure allows a lot of flexibility in terms of testing converter topology and control architectures. This article details the setup process of the mu MMC into a 3-phase inverter to demonstrate its versatility and potential as a teaching and research tool.
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关键词
Multilevel converters,Low voltage,Scalability,Source coding,Education,Hardware,Inverters
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