Control of Hexagonal Modular Multilevel Converter with Energy Storage for 3-phase AC/AC System

2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM) Pub Date : 2018-06-01 DOI:10.1109/SPEEDAM.2018.8445418

S. Hamasaki, M. Roknuzzaman, Naoki Mansai, Naoto Seto, M. Tsuji

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引用次数: 3

Abstract

The modular multilevel converter (MMC) with cascaded full bridge cells is available for AC/AC transmission system without transformers in high voltage line. The MMC is focused on as the transformer-less converter to realize light weight and downsizing and the multi-level waveforms to obtain less distorted output. When it is interconnected with power line, it is possible to control the active power flow in order to supply or charge the power in the line. The Hexagonal MMC (H-MMC) for 3-phase AC-AC conversion system with energy storage is investigated. The H-MMC has six arm modules with floating capacitors. In addition, the circuit has energy storage system such as the battery or the super capacitor to compensate surplus or shortage power between input and output. The control theory of H-MMC with the energy storage is explained and the operation is performed in simulation. Effectiveness of the proposed control method in some typical conditions is verified.

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三相交/交系统六角形模块化多电平储能变换器的控制

级联式全桥单元模块化多电平变换器(MMC)适用于高压线路中无变压器的交/交输电系统。MMC是一种无变压器变换器，可以实现轻量化和小型化，可以实现多电平波形，输出失真较小。当它与电力线互联时，可以控制有功潮流，为线路供电或充电。研究了具有储能的三相交流-交流转换系统的六方MMC (H-MMC)。H-MMC有六个带有浮动电容器的臂模块。此外，电路还具有电池或超级电容器等储能系统，以补偿输入和输出之间的多余或不足功率。阐述了带储能的H-MMC的控制理论，并进行了仿真操作。在一些典型工况下验证了所提控制方法的有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)

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