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Cascaded multilevel converters in recent research and applications

机译：级联的多级转换器在最近的研究和应用中

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摘要

Multilevel converters have been intensively investigated and developed since 1960s and have found successful industrial applications. The aim of this paper is to present state of the art as well as recent research and applications of cascaded multilevel converters, which are a very interesting solution for power distribution systems and renewable energy sources. Cascaded multilevel converters can easily operate at medium and high voltage based on the series connection of power modules (cells), which use standard low-voltage component configurations. Series connections of modules (cells) allow for high quality output voltages and input currents, reduction of passive components and availability of component redundancy. Due to these features the cascaded multilevel converters have been recognized as attractive solutions for high-voltage direct-current (HVDC) transmission, solid state transformers (SST) and photovoltaic (PV) systems.
机译：自20世纪60年代以来，多电平变换器得到了广泛的研究和开发，并在工业上得到了成功的应用。本文的目的是介绍级联多电平变换器的最新研究和应用，这是配电系统和可再生能源的一个非常有趣的解决方案。级联型多电平变换器基于功率模块（单元）的串联，可以轻松地在中高压下工作，功率模块（单元）使用标准的低压组件配置。模块（单元）的串联连接允许高质量的输出电压和输入电流，减少无源元件，并提供元件冗余。由于这些特点，级联多电平变换器被认为是高压直流输电（HVDC）、固态变压器（SST）和光伏（PV）系统的有吸引力的解决方案。

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