Model-Based Predictive Control with Graph Theory Approach Applied to Multilevel Back-to-Back Cascaded H-Bridge Converters
The multilevel back-to-back cascaded H-bridge converter (CHB-B2B) presents a significantly reduced components per level in comparison to other classical back-to-back multilevel topologies. However, this advantage cannot be fulfilled because of the several internal short circuits presented in the CHB...
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MDPI AG
2022-05-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/11/11/1711 |
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| author | Gabriel Gaburro Bacheti Renner Sartório Camargo Thiago Silva Amorim Imene Yahyaoui Lucas Frizera Encarnação |
| author_facet | Gabriel Gaburro Bacheti Renner Sartório Camargo Thiago Silva Amorim Imene Yahyaoui Lucas Frizera Encarnação |
| author_sort | Gabriel Gaburro Bacheti |
| collection | DOAJ |
| description | The multilevel back-to-back cascaded H-bridge converter (CHB-B2B) presents a significantly reduced components per level in comparison to other classical back-to-back multilevel topologies. However, this advantage cannot be fulfilled because of the several internal short circuits presented in the CHB-B2B when a conventional PWM modulation is applied. To solve this issue, a powerful math tool known as graph theory emerges as a solution for defining the converter switching matrix to be used with an appropriate control strategy, such as the model-based predictive control (MPC). Therefore, this research paper proposes a MPC with the graph theory approach applied to CHB-B2B which capable of not only eliminating the short circuit stages, but also exploring all the switching states remaining without losing the converter controllability and power quality. To demonstrate the proposed strategy applicability, the MPC with graph theory approach is tested in four different types of SST configurations, input-parallel output-parallel (IPOP), input-parallel output series (IPOS), input-series output-parallel (ISOP), and input-series output series (ISOS), attending distribution grids with different voltage and power levels. Real-time experimental results obtained in a hardware-in-the-loop (HIL) platform demonstrate the proposed strategy’s effectiveness, such as DC-link voltages regulation, multilevel voltage synthesis, and currents with reduced harmonic content. |
| first_indexed | 2024-03-10T01:24:13Z |
| format | Article |
| id | doaj.art-bf71b8a3045f4fbd9723f9351a111d14 |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-10T01:24:13Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-bf71b8a3045f4fbd9723f9351a111d142023-11-23T13:54:37ZengMDPI AGElectronics2079-92922022-05-011111171110.3390/electronics11111711Model-Based Predictive Control with Graph Theory Approach Applied to Multilevel Back-to-Back Cascaded H-Bridge ConvertersGabriel Gaburro Bacheti0Renner Sartório Camargo1Thiago Silva Amorim2Imene Yahyaoui3Lucas Frizera Encarnação4Department of Electrical Engineering, Federal University of Espírito Santo (UFES), Av. Fernando Ferrari, Vitória 29075-910, BrazilDepartment of Control and Automation Engineering, Federal Institute of Espírito Santo (IFES), Rod. ES010, Serra 29173-087, BrazilDepartment of Electrical Engineering, Federal University of Espírito Santo (UFES), Av. Fernando Ferrari, Vitória 29075-910, BrazilDepartment of Applied Mathematics, Materials Science and Engineering and Electronic Technology, Superior School of Experimental Sciences and Technology-ESCET, University Rey Juan Carlos, 28933 Madrid, SpainDepartment of Electrical Engineering, Federal University of Espírito Santo (UFES), Av. Fernando Ferrari, Vitória 29075-910, BrazilThe multilevel back-to-back cascaded H-bridge converter (CHB-B2B) presents a significantly reduced components per level in comparison to other classical back-to-back multilevel topologies. However, this advantage cannot be fulfilled because of the several internal short circuits presented in the CHB-B2B when a conventional PWM modulation is applied. To solve this issue, a powerful math tool known as graph theory emerges as a solution for defining the converter switching matrix to be used with an appropriate control strategy, such as the model-based predictive control (MPC). Therefore, this research paper proposes a MPC with the graph theory approach applied to CHB-B2B which capable of not only eliminating the short circuit stages, but also exploring all the switching states remaining without losing the converter controllability and power quality. To demonstrate the proposed strategy applicability, the MPC with graph theory approach is tested in four different types of SST configurations, input-parallel output-parallel (IPOP), input-parallel output series (IPOS), input-series output-parallel (ISOP), and input-series output series (ISOS), attending distribution grids with different voltage and power levels. Real-time experimental results obtained in a hardware-in-the-loop (HIL) platform demonstrate the proposed strategy’s effectiveness, such as DC-link voltages regulation, multilevel voltage synthesis, and currents with reduced harmonic content.https://www.mdpi.com/2079-9292/11/11/1711graph theorymodel-based predictive controlmultilevel convertershardware in the loopprohibitive states matrix |
| spellingShingle | Gabriel Gaburro Bacheti Renner Sartório Camargo Thiago Silva Amorim Imene Yahyaoui Lucas Frizera Encarnação Model-Based Predictive Control with Graph Theory Approach Applied to Multilevel Back-to-Back Cascaded H-Bridge Converters Electronics graph theory model-based predictive control multilevel converters hardware in the loop prohibitive states matrix |
| title | Model-Based Predictive Control with Graph Theory Approach Applied to Multilevel Back-to-Back Cascaded H-Bridge Converters |
| title_full | Model-Based Predictive Control with Graph Theory Approach Applied to Multilevel Back-to-Back Cascaded H-Bridge Converters |
| title_fullStr | Model-Based Predictive Control with Graph Theory Approach Applied to Multilevel Back-to-Back Cascaded H-Bridge Converters |
| title_full_unstemmed | Model-Based Predictive Control with Graph Theory Approach Applied to Multilevel Back-to-Back Cascaded H-Bridge Converters |
| title_short | Model-Based Predictive Control with Graph Theory Approach Applied to Multilevel Back-to-Back Cascaded H-Bridge Converters |
| title_sort | model based predictive control with graph theory approach applied to multilevel back to back cascaded h bridge converters |
| topic | graph theory model-based predictive control multilevel converters hardware in the loop prohibitive states matrix |
| url | https://www.mdpi.com/2079-9292/11/11/1711 |
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