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

被引：47

作者：

Liu, Chuang ^{[1
]}

Liu, Chao ^{[1
]}

Cai, Guowei ^{[1
]}

Ying, Hong ^{[2
]}

Zhang, Zhenbin ^{[3
]}

Shan, Renzhong ^{[3
]}

Pei, Zhongchen ^{[1
]}

Song, Xiaomin ^{[1
]}

机构：

[1] Northeast Elect Power Univ, Sch Elect Engn, Jilin 132012, Jilin, Peoples R China

[2] Zhejiang Huayun Clean Energy Co Ltd, Hangzhou, Peoples R China

[3] Shandong Univ, Sch Elect Engn, Jinan 250100, Peoples R China

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2020年 / 35卷 / 02期

基金：

中国国家自然科学基金;

关键词：

High-frequency link (HFL); hybrid ac and dc power conversion; isolated modular multilevel converter (I-(MC)-C-2); solid-state transformer (SST); DUAL-ACTIVE-BRIDGE; DC-DC CONVERTER; ELECTRONIC TRANSFORMER; DESIGN;

D O I：

10.1109/TPEL.2019.2923355

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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 high-voltage 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 solid-state 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.

引用

页码：1576 / 1588

页数：13

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