Model Predictive Control for Three-Phase, Four-Leg Dynamic Voltage Restorer
Dynamic voltage restores (DVRs) are usually used to mitigate the effect of voltage sag and guarantee sufficient power supply for sensitive loads. However, three-phase voltage cannot be compensated to the desired balance voltage under unbalanced three-phase loads by traditional DVRs with a three-phas...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-11-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/17/22/5622 |
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| _version_ | 1850145479169409024 |
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| author | Decan Liu Huaying Zhang Xiaorui Liang Shicong Deng |
| author_facet | Decan Liu Huaying Zhang Xiaorui Liang Shicong Deng |
| author_sort | Decan Liu |
| collection | DOAJ |
| description | Dynamic voltage restores (DVRs) are usually used to mitigate the effect of voltage sag and guarantee sufficient power supply for sensitive loads. However, three-phase voltage cannot be compensated to the desired balance voltage under unbalanced three-phase loads by traditional DVRs with a three-phase, three-leg inverter. To address this problem, a three-phase, four-leg inverter-based DVR is first introduced in this paper, and then the state space model in its continuous form and discrete form are established, respectively. A two-step predictive method is proposed for the prediction of the output voltage in each switching state by the established voltage prediction model. Finite-control-set model predictive control (MPC) is developed to be used in the three-phase, four-leg inverter-based DVR. Its dynamic response is effectively improved by the proposed MPC method under various voltage sag conditions. The proposed DVR control strategy is validated via MATLAB/Simulink-R2022b simulations, which demonstrate its effectiveness in voltage compensation under various sag conditions. |
| format | Article |
| id | doaj-art-e91d29223dae40c09a65dc3a9475a5a6 |
| institution | OA Journals |
| issn | 1996-1073 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj-art-e91d29223dae40c09a65dc3a9475a5a62025-08-20T02:28:05ZengMDPI AGEnergies1996-10732024-11-011722562210.3390/en17225622Model Predictive Control for Three-Phase, Four-Leg Dynamic Voltage RestorerDecan Liu0Huaying Zhang1Xiaorui Liang2Shicong Deng3College of Electrical Engineering, Sichuan University, Chengdu 610017, ChinaChina Southern Power Grid, Guangzhou 510663, ChinaChina Southern Power Grid, Guangzhou 510663, ChinaChina Southern Power Grid, Guangzhou 510663, ChinaDynamic voltage restores (DVRs) are usually used to mitigate the effect of voltage sag and guarantee sufficient power supply for sensitive loads. However, three-phase voltage cannot be compensated to the desired balance voltage under unbalanced three-phase loads by traditional DVRs with a three-phase, three-leg inverter. To address this problem, a three-phase, four-leg inverter-based DVR is first introduced in this paper, and then the state space model in its continuous form and discrete form are established, respectively. A two-step predictive method is proposed for the prediction of the output voltage in each switching state by the established voltage prediction model. Finite-control-set model predictive control (MPC) is developed to be used in the three-phase, four-leg inverter-based DVR. Its dynamic response is effectively improved by the proposed MPC method under various voltage sag conditions. The proposed DVR control strategy is validated via MATLAB/Simulink-R2022b simulations, which demonstrate its effectiveness in voltage compensation under various sag conditions.https://www.mdpi.com/1996-1073/17/22/5622DVRthree-phase, four-leg inverterSOGIFCS-MPC |
| spellingShingle | Decan Liu Huaying Zhang Xiaorui Liang Shicong Deng Model Predictive Control for Three-Phase, Four-Leg Dynamic Voltage Restorer Energies DVR three-phase, four-leg inverter SOGI FCS-MPC |
| title | Model Predictive Control for Three-Phase, Four-Leg Dynamic Voltage Restorer |
| title_full | Model Predictive Control for Three-Phase, Four-Leg Dynamic Voltage Restorer |
| title_fullStr | Model Predictive Control for Three-Phase, Four-Leg Dynamic Voltage Restorer |
| title_full_unstemmed | Model Predictive Control for Three-Phase, Four-Leg Dynamic Voltage Restorer |
| title_short | Model Predictive Control for Three-Phase, Four-Leg Dynamic Voltage Restorer |
| title_sort | model predictive control for three phase four leg dynamic voltage restorer |
| topic | DVR three-phase, four-leg inverter SOGI FCS-MPC |
| url | https://www.mdpi.com/1996-1073/17/22/5622 |
| work_keys_str_mv | AT decanliu modelpredictivecontrolforthreephasefourlegdynamicvoltagerestorer AT huayingzhang modelpredictivecontrolforthreephasefourlegdynamicvoltagerestorer AT xiaoruiliang modelpredictivecontrolforthreephasefourlegdynamicvoltagerestorer AT shicongdeng modelpredictivecontrolforthreephasefourlegdynamicvoltagerestorer |