Reliability and Cost Modeling of a Modular Multilevel Converter

被引：1
作者：
Isik, Semih [1 ]
Bhattacharya, Subhashish [1 ]
机构：
[1] North Carolina State Univ, Dept Elect & Comp Engn, FREEDM Syst Ctr, Raleigh, NC 27695 USA
来源：
2021 IEEE 12TH INTERNATIONAL SYMPOSIUM ON POWER ELECTRONICS FOR DISTRIBUTED GENERATION SYSTEMS (PEDG) | 2021年
关键词：
Availability; Cost; Loss; Modular Multilevel Converter; MMC; MTDC; Reliability; HVDC; PERFORMANCE; SYSTEM;
D O I：
10.1109/PEDG51384.2021.9494184
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：
This paper presents an analytical expression to calculate the reliability, cost and loss for Modular Multilevel Converter (MMC) based high voltage applications. A three-terminal DC system is chosen as a case study with different terminal modeling. Terminal 1 is modeled with conventional vector current control and circulating current control. Terminal 2 is modeled with a Fault-Tolerant Controller and dq based circulating current control, and terminal 3 is modeled with a conventional vector current control with no circulating current control. In addition to the control structure, Nearest Level Modulation (NLM) is adopted for each terminal. The MTDC system is investigated based on the total reliability and availability of the terminals. Besides, analytical loss and cost calculations are performed for the three-terminal DC system. Different redundancy techniques for MMC arms are presented, but a 10% active redundancy scheme is adopted in the three-terminal DC system.
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页数：8
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