Operation of modular multilevel matrix converters with failed branches
Operation of modular multilevel matrix converters with failed branches
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DOI：
10.1109/iecon.2014.7048724
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发表时间：
2014-10
期刊：
影响因子：
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通讯作者：
Dennis Karwatzki;M. V. Hofen;Lennart Baruschka;A. Mertens
中科院分区：
文献类型：
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作者：
Dennis Karwatzki;M. V. Hofen;Lennart Baruschka;A. Mertens
模块化多电平变换器在高电压和高功率水平下具有许多优点。由于其模块化结构，它们提供简单的可扩展性，高质量的输出波形和卓越的可用性，仅举几例。本文旨在进一步提高模块化多电平矩阵变换器的可用性。一种新的方法允许操作转换器，即使在整个分支丢失的情况下。这是通过一种新的控制方法来实现的，该方法将剩余的六个分支作为简化矩阵转换器进行操作。在不关闭系统的情况下，实现了从全矩阵到简化矩阵操作的平滑过渡。
Modular Multilevel Converters have a large number of advantages at high voltage and power levels. Due to their modular structure, they offer easy scalability, high quality output waveforms, and superior availability, to name a few. This paper aims at further increasing the availability of the Modular Multilevel Matrix Converter. A new method allows to operate the converter even in the case that a complete branch is lost. This is achieved by a new control method to operate six of the remaining branches as a reduced matrix converter. Smooth transition from full matrix to reduced matrix operation is achieved without shutdown of the system.