A comprehensive FRT strategy based on individual arm capacitor voltage control for MMC in hybrid AC/DC distribution grids
Due to the wide application of modular multilevel converters (MMCs) in hybrid AC/DC distribution grids, enhancing the fault ride-through (FRT) capability of MMC is essential to improve the reliability of the hybrid AC/DC distribution grids. In this paper, an individual arm capacitor voltage control...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-05-01
|
| Series: | International Journal of Electrical Power & Energy Systems |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0142061525001048 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850221348895326208 |
|---|---|
| author | Yu Chen Zhen Wang Minghao Wen Xianggen Yin |
| author_facet | Yu Chen Zhen Wang Minghao Wen Xianggen Yin |
| author_sort | Yu Chen |
| collection | DOAJ |
| description | Due to the wide application of modular multilevel converters (MMCs) in hybrid AC/DC distribution grids, enhancing the fault ride-through (FRT) capability of MMC is essential to improve the reliability of the hybrid AC/DC distribution grids. In this paper, an individual arm capacitor voltage control based comprehensive FRT strategy is presented. To balance the active power transmitted in each arm, an individual arm capacitor voltage control (IACVC) method is presented to regulate arm capacitor voltage stable to their reference. The decoupled control for positive pole and negative pole is achieved. Besides, an improved arm current references calculation (ACRC) method is proposed. During pole-to-ground (PTG) fault, the current of the fault pole is reduced to 0, and the healthy pole still transmit rated active power with rated voltage. In addition to, the adverse effects of AC side voltage imbalance are eliminated. The presented control strategy is verified by simulations and experiments on a MMC prototype. |
| format | Article |
| id | doaj-art-906be3e2e9e145ffaff49db3d24ae882 |
| institution | OA Journals |
| issn | 0142-0615 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal of Electrical Power & Energy Systems |
| spelling | doaj-art-906be3e2e9e145ffaff49db3d24ae8822025-08-20T02:06:44ZengElsevierInternational Journal of Electrical Power & Energy Systems0142-06152025-05-0116611055310.1016/j.ijepes.2025.110553A comprehensive FRT strategy based on individual arm capacitor voltage control for MMC in hybrid AC/DC distribution gridsYu Chen0Zhen Wang1Minghao Wen2Xianggen Yin3State Key Laboratory of Advanced Electromagnetic Technology, School of Electrical and Electronic Engineering, Huazhong University of Science & Technology (HUST), Wuhan 430074, ChinaWuhan Second Ship Design & Research Institute, Wuhan 430010, China; Corresponding author.State Key Laboratory of Advanced Electromagnetic Technology, School of Electrical and Electronic Engineering, Huazhong University of Science & Technology (HUST), Wuhan 430074, ChinaState Key Laboratory of Advanced Electromagnetic Technology, School of Electrical and Electronic Engineering, Huazhong University of Science & Technology (HUST), Wuhan 430074, ChinaDue to the wide application of modular multilevel converters (MMCs) in hybrid AC/DC distribution grids, enhancing the fault ride-through (FRT) capability of MMC is essential to improve the reliability of the hybrid AC/DC distribution grids. In this paper, an individual arm capacitor voltage control based comprehensive FRT strategy is presented. To balance the active power transmitted in each arm, an individual arm capacitor voltage control (IACVC) method is presented to regulate arm capacitor voltage stable to their reference. The decoupled control for positive pole and negative pole is achieved. Besides, an improved arm current references calculation (ACRC) method is proposed. During pole-to-ground (PTG) fault, the current of the fault pole is reduced to 0, and the healthy pole still transmit rated active power with rated voltage. In addition to, the adverse effects of AC side voltage imbalance are eliminated. The presented control strategy is verified by simulations and experiments on a MMC prototype.http://www.sciencedirect.com/science/article/pii/S0142061525001048Modular multilevel converter (MMC)Fault ride-through (FRT)DC fault |
| spellingShingle | Yu Chen Zhen Wang Minghao Wen Xianggen Yin A comprehensive FRT strategy based on individual arm capacitor voltage control for MMC in hybrid AC/DC distribution grids International Journal of Electrical Power & Energy Systems Modular multilevel converter (MMC) Fault ride-through (FRT) DC fault |
| title | A comprehensive FRT strategy based on individual arm capacitor voltage control for MMC in hybrid AC/DC distribution grids |
| title_full | A comprehensive FRT strategy based on individual arm capacitor voltage control for MMC in hybrid AC/DC distribution grids |
| title_fullStr | A comprehensive FRT strategy based on individual arm capacitor voltage control for MMC in hybrid AC/DC distribution grids |
| title_full_unstemmed | A comprehensive FRT strategy based on individual arm capacitor voltage control for MMC in hybrid AC/DC distribution grids |
| title_short | A comprehensive FRT strategy based on individual arm capacitor voltage control for MMC in hybrid AC/DC distribution grids |
| title_sort | comprehensive frt strategy based on individual arm capacitor voltage control for mmc in hybrid ac dc distribution grids |
| topic | Modular multilevel converter (MMC) Fault ride-through (FRT) DC fault |
| url | http://www.sciencedirect.com/science/article/pii/S0142061525001048 |
| work_keys_str_mv | AT yuchen acomprehensivefrtstrategybasedonindividualarmcapacitorvoltagecontrolformmcinhybridacdcdistributiongrids AT zhenwang acomprehensivefrtstrategybasedonindividualarmcapacitorvoltagecontrolformmcinhybridacdcdistributiongrids AT minghaowen acomprehensivefrtstrategybasedonindividualarmcapacitorvoltagecontrolformmcinhybridacdcdistributiongrids AT xianggenyin acomprehensivefrtstrategybasedonindividualarmcapacitorvoltagecontrolformmcinhybridacdcdistributiongrids AT yuchen comprehensivefrtstrategybasedonindividualarmcapacitorvoltagecontrolformmcinhybridacdcdistributiongrids AT zhenwang comprehensivefrtstrategybasedonindividualarmcapacitorvoltagecontrolformmcinhybridacdcdistributiongrids AT minghaowen comprehensivefrtstrategybasedonindividualarmcapacitorvoltagecontrolformmcinhybridacdcdistributiongrids AT xianggenyin comprehensivefrtstrategybasedonindividualarmcapacitorvoltagecontrolformmcinhybridacdcdistributiongrids |