Submodules Fault-Tolerant Control and Analysis of Modular Multilevel Converter with Integrated Battery Energy Storage System

被引：0
|
作者：
Ze, Zuyao [1 ]
Lin, Hua [1 ]
Ma, Yajun [1 ]
Wang, Zhe [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Sch Elect & Elect Engn, State Key Lab Adv Electromagnet Engn & Technol, Luoyu Rd 1037, Wuhan, Hubei, Peoples R China
来源：
2018 20TH EUROPEAN CONFERENCE ON POWER ELECTRONICS AND APPLICATIONS (EPE'18 ECCE EUROPE) | 2018年
基金：
中国国家自然科学基金;
关键词：
Multilevel converters; Energy storage; Fault tolerance; Converter control; Simulation; BALANCING CONTROL;
D O I：
暂无
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 this paper, submodules fault-tolerant control and analysis of Modular multilevel converter(MMC) with integrated battery energy storage system(BESS) are performed under hot reserve. A capacitor control strategy based on the average of the capacitor voltages, which is suitable for both normal operation and submodules fault-tolerant operation is proposed. Besides, difference currents are controlled flowing internally to ensure that the system's external characteristics remain unchanged before and after submodules fault. Then the influence of submodules fault on the arm current is analyzed by Monte Carlo simulation, and the conclusion that the maximum and RMS of the arm current will not exceed 1.1 times of the value of normal operation when redundancy ratio equals to 10% is drawn. Finally, the correctness of the analysis and control strategies is verified by experiment and simulation.
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收藏
页数：8
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