具有动态MVDC配电链路额定电压的模块化多电平变换器性能

2018 IEEE 18th International Power Electronics and Motion Control Conference (PEMC) Pub Date : 2018-08-01 DOI:10.1109/EPEPEMC.2018.8521970

A. Shekhar, L. Ramirez-Elizondo, Zian Qin, P. Bauer

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引用次数: 4

摘要

背靠背模块化多电平转换器(MMC)用于中压直流(MVDC)配电链路应用，由于其优越的谐波性能和高效率，提供了令人兴奋的机会。基于稳态方程，表明在特定有功和无功运行下，直流链路电压的增加可以实现，而不必增加MMC子模块组件所看到的电压。通过稳态损耗模型，证明了采用这一概念可以提高变流器的工作效率。

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Modular Multilevel Converter Performance with Dynamic MVDC Distribution Link Voltage Rating

Back-to-back Modular multilevel converters (MMC) for medium voltage dc (MVDC) distribution link applications offer exciting opportunities due to its superior harmonic performance and high efficiency. Based on the steady state equations, it is shown that under specific active and reactive power operation, an increase in dc link voltage can be achieved without necessarily increasing the voltage seen by the MMC submodule components. Using steady state loss model, it is proved that the converter operating efficiency can be improved if this concept is applied.

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2018 IEEE 18th International Power Electronics and Motion Control Conference (PEMC)

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