A Modular Multilevel Converter with Integrated Composite Energy Storage for Ship MVDC Electric Propulsion System

被引：4
|
作者：
Long, Wenfeng [1 ]
Liu, Nianzhou [1 ]
Wang, Kui [2 ]
Xu, Xiaohui [1 ]
Zheng, Zedong [2 ]
Li, Yongdong [2 ]
机构：
[1] Sci & Technol Ship Integrated Power Syst Technol, Wuhan, Peoples R China
[2] Tsinghua Univ, China State Key Lab Power Syst, Beijing, Peoples R China
来源：
2020 IEEE 9TH INTERNATIONAL POWER ELECTRONICS AND MOTION CONTROL CONFERENCE (IPEMC2020-ECCE ASIA) | 2020年
基金：
中国国家自然科学基金;
关键词：
modular multilevel converter; integrated composite energy storage; decoupled control method;
D O I：
10.1109/IPEMC-ECCEAsia48364.2020.9367843
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：
In order to satisfy the demands of ship high-power electric propulsion system and energy storage system of a medium voltage direct current (MVDC) based ship integrated power system (IPS), a modular multilevel converter with integrated composite energy storage (MMC-ICES) is proposed in this paper. In order to pursue both fast power response and long-time power supply, both batteries and super-capacitors are integrated into the MMC to form a composite energy storage. Therefore, it can not only compensate the pulse power of high-energy equipment in a ship, solve the low-frequency voltage fluctuation problem of sub-module capacitors when the MMC drives a propulsion motor under low speed high torque condition, but also provide emergency power supply under ship grid fault condition. The decoupled control method is discussed in detail and verified by simulation results in this paper.
引用
收藏
页码：824 / 829
页数：6
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