Simulation study of harmonic characteristics of modular multilevel converter in medium voltage DC power system on ship
<b>[Objectives]</b> For a Medium Voltage Direct Current(MVDC) power system on a ship, the application of the Modular Multilevel Converter(MMC)is a hot research topic. Whether the output voltage waveform of the MMC is a sine wave will directly determine the working performance of the MVDC...
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Editorial Office of Chinese Journal of Ship Research
2019-01-01
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doaj-3b85230aa6e14bf7aa94e5430be5ccbe2020-11-25T01:28:16ZengEditorial Office of Chinese Journal of Ship ResearchZhongguo Jianchuan Yanjiu1673-31851673-31852019-01-0114113414310.19693/j.issn.1673-3185.01160201901019Simulation study of harmonic characteristics of modular multilevel converter in medium voltage DC power system on shipGuo Yi0Shao Dedong1Guo Jiangchi2Zhang Quanbao3Li Yi4Logistics Engineering College, Shanghai Maritime University, Shanghai 201306, ChinaLogistics Engineering College, Shanghai Maritime University, Shanghai 201306, ChinaLogistics Engineering College, Shanghai Maritime University, Shanghai 201306, ChinaLogistics Engineering College, Shanghai Maritime University, Shanghai 201306, ChinaLogistics Engineering College, Shanghai Maritime University, Shanghai 201306, China<b>[Objectives]</b> For a Medium Voltage Direct Current(MVDC) power system on a ship, the application of the Modular Multilevel Converter(MMC)is a hot research topic. Whether the output voltage waveform of the MMC is a sine wave will directly determine the working performance of the MVDC power grid and load,so it is particularly important to improve the harmonic performance of the MMC.<b>[Methods]</b> First,based on the MVDC power system of a ship,the interactions between the harmonic characteristics, voltage level and number of bridge arm Sub-Modules(SMs)of the MMC inverter are studied. Next,the harmonic variation tendency of the MMC under the influence of the sampling period,carrier wave frequency,modulation ratio and arm inductance are studied in detail.<b>[Results]</b> It is found that a higher voltage grade MMC needs to be equipped with a larger number of SMs. When the number of SMs is given, the sampling period and modulation ratio play major roles in the harmonic improvement of the MMC.<b>[Conclusions]</b> The results of this paper can provide valuable references for selecting the parameter design of medium pressure MMC inverters.http://www.ship-research.com/EN/Y2019/V14/I1/134Modular Multilevel Converter(MMC)Medium Voltage Direct Current(MVDC) power systemharmonic characteristicsmedium voltage grade |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Guo Yi Shao Dedong Guo Jiangchi Zhang Quanbao Li Yi |
spellingShingle |
Guo Yi Shao Dedong Guo Jiangchi Zhang Quanbao Li Yi Simulation study of harmonic characteristics of modular multilevel converter in medium voltage DC power system on ship Zhongguo Jianchuan Yanjiu Modular Multilevel Converter(MMC) Medium Voltage Direct Current(MVDC) power system harmonic characteristics medium voltage grade |
author_facet |
Guo Yi Shao Dedong Guo Jiangchi Zhang Quanbao Li Yi |
author_sort |
Guo Yi |
title |
Simulation study of harmonic characteristics of modular multilevel converter in medium voltage DC power system on ship |
title_short |
Simulation study of harmonic characteristics of modular multilevel converter in medium voltage DC power system on ship |
title_full |
Simulation study of harmonic characteristics of modular multilevel converter in medium voltage DC power system on ship |
title_fullStr |
Simulation study of harmonic characteristics of modular multilevel converter in medium voltage DC power system on ship |
title_full_unstemmed |
Simulation study of harmonic characteristics of modular multilevel converter in medium voltage DC power system on ship |
title_sort |
simulation study of harmonic characteristics of modular multilevel converter in medium voltage dc power system on ship |
publisher |
Editorial Office of Chinese Journal of Ship Research |
series |
Zhongguo Jianchuan Yanjiu |
issn |
1673-3185 1673-3185 |
publishDate |
2019-01-01 |
description |
<b>[Objectives]</b> For a Medium Voltage Direct Current(MVDC) power system on a ship, the application of the Modular Multilevel Converter(MMC)is a hot research topic. Whether the output voltage waveform of the MMC is a sine wave will directly determine the working performance of the MVDC power grid and load,so it is particularly important to improve the harmonic performance of the MMC.<b>[Methods]</b> First,based on the MVDC power system of a ship,the interactions between the harmonic characteristics, voltage level and number of bridge arm Sub-Modules(SMs)of the MMC inverter are studied. Next,the harmonic variation tendency of the MMC under the influence of the sampling period,carrier wave frequency,modulation ratio and arm inductance are studied in detail.<b>[Results]</b> It is found that a higher voltage grade MMC needs to be equipped with a larger number of SMs. When the number of SMs is given, the sampling period and modulation ratio play major roles in the harmonic improvement of the MMC.<b>[Conclusions]</b> The results of this paper can provide valuable references for selecting the parameter design of medium pressure MMC inverters. |
topic |
Modular Multilevel Converter(MMC) Medium Voltage Direct Current(MVDC) power system harmonic characteristics medium voltage grade |
url |
http://www.ship-research.com/EN/Y2019/V14/I1/134 |
work_keys_str_mv |
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