Model Predictive Current Control for Fault-Tolerant Bidirectional Voltage Source Converter With Open Circuit Fault and Unbalanced Grid Voltage
To improve the fault-tolerant operation capability of bidirectional voltage source converter (BVSC), an improved model predictive current control (IMPCC) for fault-tolerant BVSC, is proposed with balanced DC-link capacitor voltage under unbalanced grid voltage. The proposed method can maintain conti...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2020-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/9172004/ |
| _version_ | 1818853465121619968 |
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| author | Shiyang Hu Guorong Liu Nan Jin Leilei Guo |
| author_facet | Shiyang Hu Guorong Liu Nan Jin Leilei Guo |
| author_sort | Shiyang Hu |
| collection | DOAJ |
| description | To improve the fault-tolerant operation capability of bidirectional voltage source converter (BVSC), an improved model predictive current control (IMPCC) for fault-tolerant BVSC, is proposed with balanced DC-link capacitor voltage under unbalanced grid voltage. The proposed method can maintain continuous operation even if power device faults and unbalanced grid voltage faults occur together. A current predictive model of the fault-tolerant BVSC is established. By using grid voltages and 90° lagging signals in the αβ stationary coordinate system, the reference current calculation method is designed for BVSC to eliminate power ripple under unbalanced grid voltage, which can avoid the complex positive and negative sequence extraction. DC-link split capacitor voltage balancing is achieved by the improved cost function. Based on the current predictive model and improved cost function, the optimal space voltage vectors are selected for fault-tolerant BVSC. Compared to the existing predictive methods, the proposed IMPCC can balance DC-link capacitor voltage and eliminate the power ripples for fault-tolerant BVSC under unbalanced grid with simple implementation. The experimental results validate the effectiveness of the proposed control scheme. |
| first_indexed | 2024-12-19T07:37:14Z |
| format | Article |
| id | doaj.art-63263c89f1214ac39808f7de53a9374a |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-19T07:37:14Z |
| publishDate | 2020-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-63263c89f1214ac39808f7de53a9374a2022-12-21T20:30:33ZengIEEEIEEE Access2169-35362020-01-01815496615497410.1109/ACCESS.2020.30181449172004Model Predictive Current Control for Fault-Tolerant Bidirectional Voltage Source Converter With Open Circuit Fault and Unbalanced Grid VoltageShiyang Hu0https://orcid.org/0000-0001-6036-3514Guorong Liu1Nan Jin2https://orcid.org/0000-0001-9763-711XLeilei Guo3https://orcid.org/0000-0002-7747-8657College of Electrical and Information Engineering, Hunan University, Changsha, ChinaCollege of Electrical and Information Engineering, Hunan Institute of Engineering, Xiangtan, ChinaCollege of Electrical and Information Engineering, Zhengzhou University of Light Industry, Zhengzhou, ChinaCollege of Electrical and Information Engineering, Zhengzhou University of Light Industry, Zhengzhou, ChinaTo improve the fault-tolerant operation capability of bidirectional voltage source converter (BVSC), an improved model predictive current control (IMPCC) for fault-tolerant BVSC, is proposed with balanced DC-link capacitor voltage under unbalanced grid voltage. The proposed method can maintain continuous operation even if power device faults and unbalanced grid voltage faults occur together. A current predictive model of the fault-tolerant BVSC is established. By using grid voltages and 90° lagging signals in the αβ stationary coordinate system, the reference current calculation method is designed for BVSC to eliminate power ripple under unbalanced grid voltage, which can avoid the complex positive and negative sequence extraction. DC-link split capacitor voltage balancing is achieved by the improved cost function. Based on the current predictive model and improved cost function, the optimal space voltage vectors are selected for fault-tolerant BVSC. Compared to the existing predictive methods, the proposed IMPCC can balance DC-link capacitor voltage and eliminate the power ripples for fault-tolerant BVSC under unbalanced grid with simple implementation. The experimental results validate the effectiveness of the proposed control scheme.https://ieeexplore.ieee.org/document/9172004/Bidirectional voltage source converterfault-tolerantopen circuit faultsunbalanced grid voltagepredictive current control |
| spellingShingle | Shiyang Hu Guorong Liu Nan Jin Leilei Guo Model Predictive Current Control for Fault-Tolerant Bidirectional Voltage Source Converter With Open Circuit Fault and Unbalanced Grid Voltage IEEE Access Bidirectional voltage source converter fault-tolerant open circuit faults unbalanced grid voltage predictive current control |
| title | Model Predictive Current Control for Fault-Tolerant Bidirectional Voltage Source Converter With Open Circuit Fault and Unbalanced Grid Voltage |
| title_full | Model Predictive Current Control for Fault-Tolerant Bidirectional Voltage Source Converter With Open Circuit Fault and Unbalanced Grid Voltage |
| title_fullStr | Model Predictive Current Control for Fault-Tolerant Bidirectional Voltage Source Converter With Open Circuit Fault and Unbalanced Grid Voltage |
| title_full_unstemmed | Model Predictive Current Control for Fault-Tolerant Bidirectional Voltage Source Converter With Open Circuit Fault and Unbalanced Grid Voltage |
| title_short | Model Predictive Current Control for Fault-Tolerant Bidirectional Voltage Source Converter With Open Circuit Fault and Unbalanced Grid Voltage |
| title_sort | model predictive current control for fault tolerant bidirectional voltage source converter with open circuit fault and unbalanced grid voltage |
| topic | Bidirectional voltage source converter fault-tolerant open circuit faults unbalanced grid voltage predictive current control |
| url | https://ieeexplore.ieee.org/document/9172004/ |
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