An Isolated Modular Multilevel Converter (I-M2C) Topology Based on High-Frequency Link (HFL) Concept

An Isolated Modular Multilevel Converter (I-M2C) Topology Based on High-Frequency Link (HFL) Concept
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基于高频链路 (HFL) 概念的隔离式模块化多电平转换器 (I-M2C) 拓扑

DOI:
10.1109/tpel.2019.2923355
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发表时间:
2020-02
影响因子:
6.7
通讯作者:
Xiaomin Song
Xiaomin Song
中科院分区:
工程技术1区
文献类型:
--
作者:
Chuang Liu;Chao Liu;Guowei Cai;Hong Ying;Zhenbin Zhang;Renzhong Shan;Zhongchen Pei;Xiaomin Song

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This paper introduces the high-frequency link concept into the modular multilevel converter (MMC) topology, which.can totally reduce the individual dc-link capacitors at the highvoltage side. The proposed converter, called isolated MMC, has.basic triple ports of medium-voltage ac, medium-voltage dc, and.low-voltage dc. Thus, it is especially suitable for hybrid dc and ac.applications in power generation and transmission, such as solidstate transformer. The fundamental principle and applied control.scheme of phase-shift pulsewidth modulation are presented in detail. The design of the voltage clamping circuit and analysis of duty.loss are carried out. The experimental results are given to illustrate.the efficient operation characteristics.
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