A Design Method of Hybrid MMC Full-bridge Submodule Proportion Applied to DC Traction Power Supply System for Urban Rail Transit
The characteristic of urban rail DC traction power supply system is low voltage and large current. The capacity of a converter fails to meet the demand, limited by the current capacity of the switching device. Hybrid modular multilevel converter (MMC) is composed of full-bridge submodule and half-br...
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| Format: | Article |
| Language: | zho |
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State Grid Energy Research Institute
2022-04-01
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| Series: | Zhongguo dianli |
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| Online Access: | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202011100 |
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| author | Yanna XI Xiaotong LI Ziming LI Yingdong WEI Xiaoqian LI Fangmin WANG Wei LI Weirui LI |
| author_facet | Yanna XI Xiaotong LI Ziming LI Yingdong WEI Xiaoqian LI Fangmin WANG Wei LI Weirui LI |
| author_sort | Yanna XI |
| collection | DOAJ |
| description | The characteristic of urban rail DC traction power supply system is low voltage and large current. The capacity of a converter fails to meet the demand, limited by the current capacity of the switching device. Hybrid modular multilevel converter (MMC) is composed of full-bridge submodule and half-bridge submodule. It can be used in systems with modulation ratio greater than one. Utilizing the negative level output capability of the full-bridge submodule, the increase of the AC voltage or the reduction of the DC voltage can be achieved. This article is aimed at the hybrid MMC that can be applied in the DC traction power supply system and proposes a design method for the proportion of full-bridge submodule. This method meets the needs of high modulation ratio steady state operation and DC fault clearing capability. A 1 500 V subway system is selected as an example and three sets of parameters are also selected. The simulation model was built in PSCAD software to verify the correctness of the design method. |
| format | Article |
| id | doaj-art-ca34007a6359450d9c1828f5400ca2f0 |
| institution | DOAJ |
| issn | 1004-9649 |
| language | zho |
| publishDate | 2022-04-01 |
| publisher | State Grid Energy Research Institute |
| record_format | Article |
| series | Zhongguo dianli |
| spelling | doaj-art-ca34007a6359450d9c1828f5400ca2f02025-08-20T02:52:24ZzhoState Grid Energy Research InstituteZhongguo dianli1004-96492022-04-01554546210.11930/j.issn.1004-9649.202011100zgdl-55-3-lixiaoqianA Design Method of Hybrid MMC Full-bridge Submodule Proportion Applied to DC Traction Power Supply System for Urban Rail TransitYanna XI0Xiaotong LI1Ziming LI2Yingdong WEI3Xiaoqian LI4Fangmin WANG5Wei LI6Weirui LI7State Grid Beijing Electric Power Company, Beijing 100031, ChinaState Grid Beijing Electric Power Company, Beijing 100031, ChinaState Key Laboratory of Control and Simulation of Power System and Generation Equipment (Department of Electrical Engineering, Tsinghua University), Beijing100084, ChinaState Key Laboratory of Control and Simulation of Power System and Generation Equipment (Department of Electrical Engineering, Tsinghua University), Beijing100084, ChinaState Key Laboratory of Control and Simulation of Power System and Generation Equipment (Department of Electrical Engineering, Tsinghua University), Beijing100084, ChinaState Grid Beijing Electric Power Company, Beijing 100031, ChinaState Grid Beijing Electric Power Company, Beijing 100031, ChinaState Key Laboratory of Control and Simulation of Power System and Generation Equipment (Department of Electrical Engineering, Tsinghua University), Beijing100084, ChinaThe characteristic of urban rail DC traction power supply system is low voltage and large current. The capacity of a converter fails to meet the demand, limited by the current capacity of the switching device. Hybrid modular multilevel converter (MMC) is composed of full-bridge submodule and half-bridge submodule. It can be used in systems with modulation ratio greater than one. Utilizing the negative level output capability of the full-bridge submodule, the increase of the AC voltage or the reduction of the DC voltage can be achieved. This article is aimed at the hybrid MMC that can be applied in the DC traction power supply system and proposes a design method for the proportion of full-bridge submodule. This method meets the needs of high modulation ratio steady state operation and DC fault clearing capability. A 1 500 V subway system is selected as an example and three sets of parameters are also selected. The simulation model was built in PSCAD software to verify the correctness of the design method.https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202011100modular multilevel converterhybrid mmcproportion of full-bridge submoduledc traction power supply |
| spellingShingle | Yanna XI Xiaotong LI Ziming LI Yingdong WEI Xiaoqian LI Fangmin WANG Wei LI Weirui LI A Design Method of Hybrid MMC Full-bridge Submodule Proportion Applied to DC Traction Power Supply System for Urban Rail Transit Zhongguo dianli modular multilevel converter hybrid mmc proportion of full-bridge submodule dc traction power supply |
| title | A Design Method of Hybrid MMC Full-bridge Submodule Proportion Applied to DC Traction Power Supply System for Urban Rail Transit |
| title_full | A Design Method of Hybrid MMC Full-bridge Submodule Proportion Applied to DC Traction Power Supply System for Urban Rail Transit |
| title_fullStr | A Design Method of Hybrid MMC Full-bridge Submodule Proportion Applied to DC Traction Power Supply System for Urban Rail Transit |
| title_full_unstemmed | A Design Method of Hybrid MMC Full-bridge Submodule Proportion Applied to DC Traction Power Supply System for Urban Rail Transit |
| title_short | A Design Method of Hybrid MMC Full-bridge Submodule Proportion Applied to DC Traction Power Supply System for Urban Rail Transit |
| title_sort | design method of hybrid mmc full bridge submodule proportion applied to dc traction power supply system for urban rail transit |
| topic | modular multilevel converter hybrid mmc proportion of full-bridge submodule dc traction power supply |
| url | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202011100 |
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