Improved Model Predictive Control for Asymmetric T-Type NPC 3-Level Inverter
In this paper, a model predictive control for an asymmetric T-type NPC 3-level inverter is presented. The mathematical model and characteristics of the reduced switching topology are described. An improvement for the predicted strategy with the pre-selected candidate vectors is proposed. The simulat...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-09-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/10/18/2244 |
| _version_ | 1797519549266919424 |
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| author | Nam Xuan Doan Nho Van Nguyen |
| author_facet | Nam Xuan Doan Nho Van Nguyen |
| author_sort | Nam Xuan Doan |
| collection | DOAJ |
| description | In this paper, a model predictive control for an asymmetric T-type NPC 3-level inverter is presented. The mathematical model and characteristics of the reduced switching topology are described. An improvement for the predicted strategy with the pre-selected candidate vectors is proposed. The simulation and experimental results are provided and show good efficiency for the proposed control algorithm. The improved algorithm greatly reduces execution time by about 18% and delivers a better load current THD than the conventional model for predictive control. For comparison, similar tests are performed on both 2-level and conventional 3-level inverters. Although the current load quality of the asymmetrical inverter is not as good as the traditional 3-level inverter, it is much better than the 2-level inverter. In addition, it has the benefits of significantly reducing overall costs, simpler hardware system design, and faster predictive processing than the conventional 3-level inverters. Therefore, this asymmetric inverter has advantages for an application with the required output characteristics like the conventional 3-level inverter and with lower cost. |
| first_indexed | 2024-03-10T07:44:21Z |
| format | Article |
| id | doaj.art-47ffb8ae64c24177b28a9c3d4e169bf0 |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-10T07:44:21Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-47ffb8ae64c24177b28a9c3d4e169bf02023-11-22T12:48:04ZengMDPI AGElectronics2079-92922021-09-011018224410.3390/electronics10182244Improved Model Predictive Control for Asymmetric T-Type NPC 3-Level InverterNam Xuan Doan0Nho Van Nguyen1Faculty of Electrical and Electronics Engineering, Ho Chi Minh City University of Technology (HCMUT), Ho Chi Minh City BP 70000, VietnamFaculty of Electrical and Electronics Engineering, Ho Chi Minh City University of Technology (HCMUT), Ho Chi Minh City BP 70000, VietnamIn this paper, a model predictive control for an asymmetric T-type NPC 3-level inverter is presented. The mathematical model and characteristics of the reduced switching topology are described. An improvement for the predicted strategy with the pre-selected candidate vectors is proposed. The simulation and experimental results are provided and show good efficiency for the proposed control algorithm. The improved algorithm greatly reduces execution time by about 18% and delivers a better load current THD than the conventional model for predictive control. For comparison, similar tests are performed on both 2-level and conventional 3-level inverters. Although the current load quality of the asymmetrical inverter is not as good as the traditional 3-level inverter, it is much better than the 2-level inverter. In addition, it has the benefits of significantly reducing overall costs, simpler hardware system design, and faster predictive processing than the conventional 3-level inverters. Therefore, this asymmetric inverter has advantages for an application with the required output characteristics like the conventional 3-level inverter and with lower cost.https://www.mdpi.com/2079-9292/10/18/2244asymmetric invertersdelay compensationmodel predictive controlT-type NPC inverterreduced switching |
| spellingShingle | Nam Xuan Doan Nho Van Nguyen Improved Model Predictive Control for Asymmetric T-Type NPC 3-Level Inverter Electronics asymmetric inverters delay compensation model predictive control T-type NPC inverter reduced switching |
| title | Improved Model Predictive Control for Asymmetric T-Type NPC 3-Level Inverter |
| title_full | Improved Model Predictive Control for Asymmetric T-Type NPC 3-Level Inverter |
| title_fullStr | Improved Model Predictive Control for Asymmetric T-Type NPC 3-Level Inverter |
| title_full_unstemmed | Improved Model Predictive Control for Asymmetric T-Type NPC 3-Level Inverter |
| title_short | Improved Model Predictive Control for Asymmetric T-Type NPC 3-Level Inverter |
| title_sort | improved model predictive control for asymmetric t type npc 3 level inverter |
| topic | asymmetric inverters delay compensation model predictive control T-type NPC inverter reduced switching |
| url | https://www.mdpi.com/2079-9292/10/18/2244 |
| work_keys_str_mv | AT namxuandoan improvedmodelpredictivecontrolforasymmetricttypenpc3levelinverter AT nhovannguyen improvedmodelpredictivecontrolforasymmetricttypenpc3levelinverter |