An improved two-beat deadbeat synchronous predictive current control strategy for MMC based on Newton interpolation method
Modular Multilevel Converter (MMC) is widely used in applications such as High Voltage Direct Current (HVDC) transmission, AC/DC power conversion centers, and large-scale power quality management in electrical grids due to its highly modular structure, strong redundancy and low harmonic content in A...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2024-04-01
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| Series: | Frontiers in Energy Research |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fenrg.2024.1385029/full |
| _version_ | 1827278996806565888 |
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| author | Yuan Cheng Yuan Cheng Yuan Cheng Hui Zhang Jing Xing Zihan Xiao |
| author_facet | Yuan Cheng Yuan Cheng Yuan Cheng Hui Zhang Jing Xing Zihan Xiao |
| author_sort | Yuan Cheng |
| collection | DOAJ |
| description | Modular Multilevel Converter (MMC) is widely used in applications such as High Voltage Direct Current (HVDC) transmission, AC/DC power conversion centers, and large-scale power quality management in electrical grids due to its highly modular structure, strong redundancy and low harmonic content in AC output. The application of the traditional deadbeat predictive current control to MMC enhances the fast tracking ability of the output current, but it still has the problems of low output current accuracy and high dependence on bridge arm inductor. Based on this, this paper proposes an improved two-beat deadbeat synchronous predictive current control based on Newton interpolation method. By improving the two-beat deadbeat synchronous predictive current control strategy, the accuracy of the output current can be further improved and its fast tracking ability can be enhanced. Newton interpolation is introduced to improve the accuracy of the output current while reducing the dependence on the bridge arm inductor. The results show that the control strategy proposed in this paper reduces the output current THD by 2.88% compared with the two-beat deadbeat predictive current control, thus improving the accuracy; the bridge arm inductor value is reduced by 1.28%, thus reducing the dependence; and under the transient environment, the output current can be tracked to its predicted reference value 843 μs in advance, which enhances the fast tracking capability. |
| first_indexed | 2024-04-24T08:11:46Z |
| format | Article |
| id | doaj.art-6dbf4bda4ad04682bf0dbef9520d3557 |
| institution | Directory Open Access Journal |
| issn | 2296-598X |
| language | English |
| last_indexed | 2024-04-24T08:11:46Z |
| publishDate | 2024-04-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Energy Research |
| spelling | doaj.art-6dbf4bda4ad04682bf0dbef9520d35572024-04-17T04:53:07ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2024-04-011210.3389/fenrg.2024.13850291385029An improved two-beat deadbeat synchronous predictive current control strategy for MMC based on Newton interpolation methodYuan Cheng0Yuan Cheng1Yuan Cheng2Hui Zhang3Jing Xing4Zihan Xiao5School of Electrical Engineering, Xi’an University of Technology, Xi’an, ChinaSchool of Electronics Information, Xi’an Polytechnic University, Xi’an, ChinaXi’an Key Laboratory of Interconnected Sensing and Intelligent Diagnosis for Electrical Equipment, Xi’an, ChinaSchool of Electrical Engineering, Xi’an University of Technology, Xi’an, ChinaSchool of Electronics Information, Xi’an Polytechnic University, Xi’an, ChinaState Grid Tongchuan Electric Power Supply Company, Tongchuan, ChinaModular Multilevel Converter (MMC) is widely used in applications such as High Voltage Direct Current (HVDC) transmission, AC/DC power conversion centers, and large-scale power quality management in electrical grids due to its highly modular structure, strong redundancy and low harmonic content in AC output. The application of the traditional deadbeat predictive current control to MMC enhances the fast tracking ability of the output current, but it still has the problems of low output current accuracy and high dependence on bridge arm inductor. Based on this, this paper proposes an improved two-beat deadbeat synchronous predictive current control based on Newton interpolation method. By improving the two-beat deadbeat synchronous predictive current control strategy, the accuracy of the output current can be further improved and its fast tracking ability can be enhanced. Newton interpolation is introduced to improve the accuracy of the output current while reducing the dependence on the bridge arm inductor. The results show that the control strategy proposed in this paper reduces the output current THD by 2.88% compared with the two-beat deadbeat predictive current control, thus improving the accuracy; the bridge arm inductor value is reduced by 1.28%, thus reducing the dependence; and under the transient environment, the output current can be tracked to its predicted reference value 843 μs in advance, which enhances the fast tracking capability.https://www.frontiersin.org/articles/10.3389/fenrg.2024.1385029/fullmodular multilevel converterNewton interpolation methoddeadbeat predictive current controldependencyfast tracking |
| spellingShingle | Yuan Cheng Yuan Cheng Yuan Cheng Hui Zhang Jing Xing Zihan Xiao An improved two-beat deadbeat synchronous predictive current control strategy for MMC based on Newton interpolation method Frontiers in Energy Research modular multilevel converter Newton interpolation method deadbeat predictive current control dependency fast tracking |
| title | An improved two-beat deadbeat synchronous predictive current control strategy for MMC based on Newton interpolation method |
| title_full | An improved two-beat deadbeat synchronous predictive current control strategy for MMC based on Newton interpolation method |
| title_fullStr | An improved two-beat deadbeat synchronous predictive current control strategy for MMC based on Newton interpolation method |
| title_full_unstemmed | An improved two-beat deadbeat synchronous predictive current control strategy for MMC based on Newton interpolation method |
| title_short | An improved two-beat deadbeat synchronous predictive current control strategy for MMC based on Newton interpolation method |
| title_sort | improved two beat deadbeat synchronous predictive current control strategy for mmc based on newton interpolation method |
| topic | modular multilevel converter Newton interpolation method deadbeat predictive current control dependency fast tracking |
| url | https://www.frontiersin.org/articles/10.3389/fenrg.2024.1385029/full |
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