Reliability Comparison of Fault-Tolerant HVDC Based Modular Multilevel Converters

被引：0
|
作者：
Alharbi, Mohammed [1 ]
Yousefpoor, Nima [2 ]
Bhattacharya, Subhashish [1 ]
机构：
[1] North Carolina State Univ, Dept Elect Engn, Raleigh, NC 27695 USA
[2] Quanta Technol, Raleigh, NC USA
来源：
2017 IEEE POWER & ENERGY SOCIETY GENERAL MEETING | 2017年
关键词：
Fault Tolerant; HVDC; Reliability; Modular Multilevel Converter; MMC; High-Frequency Isolation;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The reliability of Modular Multilevel Converters (MMC) is a significant issue as a large number of semiconductor devices are equipped with each converter. Failure of one switching device in the converter may lead to shut-down of the entire system. The fault-tolerant design approach can dominate faults and improve the system safety and reliability. In this paper, the reliability analysis is performed to compare the reliability performance of the half-bridge (HB) and the high-frequency isolation (HFI) based MMC converters. The N+1 redundancy designs are presented and assessed using Markov reliability model. A comparative evaluation of the HB-MMC and HFI-MMC topologies shows that the reliability of HB-MMC converter is much higher than that of the HFI-MMC converter.
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页数：5
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