Mixed cells modular multilevel converter
Mixed cells modular multilevel converter
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DOI：
10.1109/isie.2014.6864817
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发表时间：
2014-06
期刊：
影响因子：
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通讯作者：
G. Adam;K. Ahmed;B. Williams
中科院分区：
文献类型：
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作者：
G. Adam;K. Ahmed;B. Williams
本文以一种缩小版的混合单元模块化多电平变流器（MMC）为例，讨论了其调制和电容电压平衡方法，并研究了其交直流故障穿越能力。已经发现，混合MMC是弹性的AC和DC网络故障，这是必要的下一代高度网状多端HVDC电网。本文进行的功率损耗比较表明，混合单元MMC和三电平单元MMC实现直流故障反向阻断能力，在降低通态损耗比全桥MMC和替代臂MMC。
This paper uses a scaled down version of the mixed cells modular multilevel converter (MMC) to discuss its modulation and capacitor voltage balancing method, and investigates its AC and DC fault ride-through capability. It has been found that the mixed MMC is resilient to both AC and DC network faults, which are necessary for next generations of highly meshed multi-terminal HVDC grids. The power losses comparison conducted in this paper has shown that the mixed cells MMC and three-level cells MMC achieve DC fault reverse blocking capability at reduced on-state losses than full-bridge MMC and alternative arm MMC.