7-kV 1-MVA SiC-Based Modular Multilevel Converter Prototype for Medium-Voltage Electric Machine Drives

被引：58

作者：

Pan, Jianyu ^{[1
,2
]}

Ke, Ziwei ^{[2
]}

Al Sabbagh, Muneer ^{[2
]}

Li, He ^{[2
]}

Potty, Karun Arjun ^{[2
]}

Perdikakis, Will ^{[2
]}

Na, Risha ^{[2
]}

Zhang, Julia ^{[2
]}

Wang, Jin ^{[2
]}

Xu, Longya ^{[2
]}

机构：

[1] Chongqing Univ, Sch Elect Engn, Chongqing 400044, Peoples R China

[2] Ohio State Univ, Dept Elect & Comp Engn, Columbus, OH 43210 USA

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2020年 / 35卷 / 10期

关键词：

Silicon carbide; Capacitors; Prototypes; Medium voltage; Silicon; Topology; Multichip modules; Medium-voltage (MV) motor drive; modular multilevel converter (MMC); silicon carbide (SiC) device; submodule (SM) design;

D O I：

10.1109/TPEL.2020.2978657

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 article presents the design and development of a 7-kV dc bus, 1-MVA, 0-1000 Hz modular multilevel converter (MMC) prototype for high speed medium-voltage variable frequency drives. The system is designed based on 1.7-kV silicon carbide (SiC) mosfets. First, the full in-depth design of the prototype is provided, including the submodules, arm inductors, and system integration. Then, the unique control scheme and the control hardware design are presented to achieve the full-frequency range operation. The power loss based on Si and SiC devices is analyzed. Finally, experimental results are presented to demonstrate the performance of both the SiC-based submodule and the full-scale MMC system. Compared with the traditional Si-based solution, the established SiC MMC can reduce the drive system volume by 75% and achieve 325% power density, and the peak energy efficiency reaches around 99.35%.

引用

页码：10137 / 10149

页数：13

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