混合模块化多电平级联变换器用于电压不平衡工况

The 10th International Conference on Power Electronics, Machines and Drives (PEMD 2020) Pub Date : 1900-01-01 DOI:10.1049/icp.2021.1185

O. Oghorada, H. Huang, L. Zhang, J. O. Uwagboe, M. Olarewaju, I. Omeiza, R. Diarah

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引用次数: 0

摘要

提出了一种以5电平飞容变换器为子模块的混合MMCC在电网电压不平衡情况下的控制方案。将混合MMCC与电压凹陷条件下的单星连接MMCC进行了比较，确定了混合MMCC的优势，以及它具有更低的直流电容和功率半导体开关数。仿真结果验证了混合MMCC控制方案的有效性，并与星型连接MMCC进行了比较。

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THE USE OF HYBRID MODULAR MULTILEVEL CASCADED CONVERTER FOR UNBALANCED VOLTAGE CONDITION

This paper presents a control scheme for the hybrid MMCC using the 5-level flying capacitor converter as sub-module under grid unbalanced voltage condition. The hybrid MMCC is compared with the single star-connected MMCC under voltage sag condition to determine its superiority, in addition to its lower dc capacitor and power semiconductor switch count. The simulation results are provided to validate the hybrid MMCC control scheme and its comparison with the star connected MMCC.

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来源期刊

The 10th International Conference on Power Electronics, Machines and Drives (PEMD 2020)

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