Circulating Current Suppression Strategy of Modular Multilevel Converter Based on Model Predictive Control
Modular Multilevel Converter (MMC) has the characteristics of high voltage level and low switching frequency. The traditional modular multilevel converter circulating current control strategy mostly adopts the PI control principle, and the parameter setting is complicated and the accuracy is not hig...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2021-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/37/e3sconf_icemee2021_01035.pdf |
| _version_ | 1819097136989470720 |
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| author | Liu kang Gao Guige |
| author_facet | Liu kang Gao Guige |
| author_sort | Liu kang |
| collection | DOAJ |
| description | Modular Multilevel Converter (MMC) has the characteristics of high voltage level and low switching frequency. The traditional modular multilevel converter circulating current control strategy mostly adopts the PI control principle, and the parameter setting is complicated and the accuracy is not high, and the control process is more difficult. Model predictive control strategy is the optimal control method based on the model in the existing time domain. This paper proposes a Model Predictive Control (MPC) method based on carrier phase-shifted pulse width modulation (PSC-PWM) to suppress the circulating current, and output the optimal modulation wave through model prediction. Compared with the traditional control strategy, this strategy is simple to implement, does not require complex tuning calculations, and combines with the traditional capacitor voltage equalization strategy to obtain the output modulation wave. A 7-level MMC simulation control system is built in MATLAB / SIMLINK to verify the theory, comparing with existing control methods, it can be concluded that the proposed method has high calculation efficiency, good control accuracy and strong robustness. |
| first_indexed | 2024-12-22T00:10:18Z |
| format | Article |
| id | doaj.art-bae4055551994407928fe1926bea48fa |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-12-22T00:10:18Z |
| publishDate | 2021-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-bae4055551994407928fe1926bea48fa2022-12-21T18:45:27ZengEDP SciencesE3S Web of Conferences2267-12422021-01-012610103510.1051/e3sconf/202126101035e3sconf_icemee2021_01035Circulating Current Suppression Strategy of Modular Multilevel Converter Based on Model Predictive ControlLiu kang0Gao Guige1Shanghai DianJi UniversityShanghai DianJi UniversityModular Multilevel Converter (MMC) has the characteristics of high voltage level and low switching frequency. The traditional modular multilevel converter circulating current control strategy mostly adopts the PI control principle, and the parameter setting is complicated and the accuracy is not high, and the control process is more difficult. Model predictive control strategy is the optimal control method based on the model in the existing time domain. This paper proposes a Model Predictive Control (MPC) method based on carrier phase-shifted pulse width modulation (PSC-PWM) to suppress the circulating current, and output the optimal modulation wave through model prediction. Compared with the traditional control strategy, this strategy is simple to implement, does not require complex tuning calculations, and combines with the traditional capacitor voltage equalization strategy to obtain the output modulation wave. A 7-level MMC simulation control system is built in MATLAB / SIMLINK to verify the theory, comparing with existing control methods, it can be concluded that the proposed method has high calculation efficiency, good control accuracy and strong robustness.https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/37/e3sconf_icemee2021_01035.pdf |
| spellingShingle | Liu kang Gao Guige Circulating Current Suppression Strategy of Modular Multilevel Converter Based on Model Predictive Control E3S Web of Conferences |
| title | Circulating Current Suppression Strategy of Modular Multilevel Converter Based on Model Predictive Control |
| title_full | Circulating Current Suppression Strategy of Modular Multilevel Converter Based on Model Predictive Control |
| title_fullStr | Circulating Current Suppression Strategy of Modular Multilevel Converter Based on Model Predictive Control |
| title_full_unstemmed | Circulating Current Suppression Strategy of Modular Multilevel Converter Based on Model Predictive Control |
| title_short | Circulating Current Suppression Strategy of Modular Multilevel Converter Based on Model Predictive Control |
| title_sort | circulating current suppression strategy of modular multilevel converter based on model predictive control |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/37/e3sconf_icemee2021_01035.pdf |
| work_keys_str_mv | AT liukang circulatingcurrentsuppressionstrategyofmodularmultilevelconverterbasedonmodelpredictivecontrol AT gaoguige circulatingcurrentsuppressionstrategyofmodularmultilevelconverterbasedonmodelpredictivecontrol |